How to cleaning drones and fixing drones

If you are a fan of drones, please remember to maintain the drone and other component. Preventing the dust and dirt is a very crucial immediate step of you. Actually, there is small difference between it and for various design. So there is a special system, but there are some other methods to clean the drone and to make it in the best condition. Within the following, we would learn how to clean the drones. First, you should prepare a tool-kit, and put all the fixing, cleaning, maintenance stuff into it. Remember to match the stuff with the drone's brand and model.

The must-have tools for cleaning drones

1. a soft cleaning brush

This is for some corners and gaps, and you can also use the pipeline pigging.

2. canning compressed air

This can clean the dirt of some "sensitive parts" such as the electric motor or circuit board around, which would not damage the drones.

3. isopropyl alcohol

This can clean your drone shell in perfect condition, which can wipe out grass stains, blood stains and any other kind of dirt, and would not damage the circuit.

4. ultra-thin fiber cloth

If you want to completely clean the drone by dismantling it, it is necessary to use this cloth as it can perfectly match the isopropyl alcohol.

5. three-in-one all-purpose lubricant

Carry a bottle of three-in-one all-purpose lubricant in case of emergency.

The must-have tools to fix the drone

It is possible to have trouble while the drone is flying or landing. As it is a precise device, any tiny change would influence its flying status and longevity. Therefore, it is wise to prepare needed tools and carefully deal with the drone's failure.

1. spare bracket

the bracket is one of the most important components of flying the drone. Once it has trouble, the drone should land immediately and replace the original bracket with the spare one.

2. tool kit

Remember to prepare all kinds of tools that can fix all the possible troubles. Maybe your drone is too advanced to have trouble or there's a matched and attached tool kit when you buy the drone, but you still need to take a screw-drive.

3. soldering iron

while you would not take the soldering iron with you all the time, there would be not better than having a soldering iron when the electronic failure happens. Compared with the amateur, the professional pilots always take the soldering iron. However, if you have never used the soldering iron before, it's better to search help from your friends or watch the guide video.

4. spare battery

If your drone has available spare multicopter battery, please fully charge it.

The notes for the greenhands:

1. Please check whether the ground is spacious enough; whether your drone is in good condition; whether the switch of the remote control is flexible.
2. Keep your 16000mah lipo battery be in full charge.
3. Keep your drone clean.
4. Do not fly the drone for too long.
Source: http://www.genstattu.com/blog/how-to-cleaning-drones-and-fixing-drones/

How to Choose the Best FPV LiPo Battery

FPV is more and more popular now among many RC hobbists and there are more and more newbies come into this hobby. Many new beginners write to us about how to begin and what are the most important point when flying FPV. Among all the questions, the best battery for FPV flight is very often asked.
Many Videos are now showing a battery that could be the best LiPo battery for long distance FPV flying. With the aide of FVP goggles, flying FPV is pretty exciting and real than any other RC drones or airplanes because of the goggles to see the real view in the first sight. Certainly, the spetacular speed of FPV is core for enjoying the FPV flight.

Usually the limiting component on an FPV aircraft for flight is the battery. In the past, I have used about 1300mAh, 45C and 3/4S for FPV, however, Tattu is the first UAV LiPo battery released Tattu 75C 4S 1300mAh LiPo Pack Battery, which get a very good popularity among clients. Certainly, Tattu have many batteries, but this time we will take this amazing one to see why it is so attractive.

                            Tattu 4S 1300 mAh 75C Li-Po Pack Battery

The 4S 14.8V 75c 1300mAh LiPO battery pack is a great choice for many small UAVs which require high discharge rates. This battery packs a ton of power in a compact form factor, giving you the flight time and power your need on your craft.

And the advantages is that Tattu LiPos are packed with vibration-proof & fire-proof material and luxury battery box. Make sure to get your battery in perfect condition. An automatic procedure & Computer system battery cell matching process ensures the batteries stability and quality. Different from the original Gens Ace series, TATTU is specialized for the UAV & UAS market, with their industrial quality (since Gens Ace is based on the Hobby area), their slogan "less is more", "more" means more flight time, more enjoyment, and more satisfaction , and "less" means less weight, simple design. Tattu always develops their products according to these 2 directions giving you a high quality battery.

Tattu's Stable automatic stacking technology enables single cell capacities of 1300mAh. This higher capacity than comparable size packs and without memory effect.

Tattu FPV battery provide high quality, reliable power for your FPV Nemesis 240 Mini, Skylark M4-FPV250, Mini Shredder 200, INDY250 PLUS, HOVERSHIP MHQ2(270), ZMR 250, Emax Nighthawk 250, Mini H, QAV250, QAV180/210, Danaus, Vortex 285, Mini H, FLIP FPV FRAME, Emax Nighthawk 250, ZMR 250, HOVERSHIP MHQ2, MOJO 280, etc.

Choose Tattu FPV battery, you will be surprised.More power, more flight time, and less weight.
Source: http://www.genstattu.com/blog/how-to-choose-the-best-fpv-lipo-battery/

How To Reduce The Potential Risk Of Drones?

The low-cost of buying and operating remotely piloted aircraft (drones) for commercial use has opened up a world of opportunity. With drones uses emerging in search and rescue, surveying, crop dusting and even deliveries, accidents, injuries and the potential for lawsuits are bound to follow. Some businesses are beginning to look at opportunities to revolutionize how basic services and dangerous tasks might be performed in the future. However, to revolutionize drones and make it more widely used, solving the potential risk of drones is the first and foremost task.

1. Natural Environment

Drones should avoid flying in complex terrain as far as possible to ensure the safety problem. We can’t fly drones in storm, high temperature and high humidity, rainy, cold or windy days. But on the other hand, many dangerous missions can be only done by drones.Then we need to adjust our mind, after all, the pilot's life is far more important than drone’s.

2. Safety by design

The responsibility of safe drone use does not just fall on the user. Manufacturers have recognised the importance of technology in developing drone safety.

The spareparts like flight control system, motors, prepellers, ESC and esc. Parts made by manufacturers should be in stable quality that they won’t easily broken, spcially in flying. And the drones battery used are supposed to be in good quality and condition, or the drone would drop down once the battery cann’t work and support it. A good 2s 7.4v lipo battery like Tattu,Turnigy with excellent and stable and they are lighter, so they are well recommended here for you.

3. Misoperation

When flying in the sky, drones need to be operated and controlled by pilots on the ground. Cause drones autopilot cannot think, the flying track is completely controlled by command of ground pilots.
To avoid errors caused by accident, on the one hand, the flight control system should be made more intelligent and has alarm function to the wrong operation.On the other hand, pilots should also improve operating level to fly more stable and professional.

4. Reduce the weight

Weight is one of the most effective way to reduce the potential risk of drones. This will come true with the emerging of light-duty and miniaturization of equipments and materials. On the other hand, multirotors equipped with parachute is another good choice to reduce the impact when drones falling.

5.Set no-fly zone

Geo-fencing, is an on-board GPS and mapping system (also known as "cyber fences") which prevents drones from flying into restricted airspace. There is a recognised need at the European Commission to encourage investment in technologies that are required to integrate drones into the aviation systems covering European airspace.

As long as no flying in the densely populated areas, a drone’s crash won't cause a severe damage to human. But in the densely populated area, the negative impact of drone’s crash will increase greatly. Without special approval, drones should not be flying in the densely populated are which will result in life risks. In addition, in the sparsely area, pilots can send massage to surrounding people to improve safety coefficient.

To improve drones’ safety and efficiency is the first step for more widely and variety used in many areas, so it requires manufacturers and hobbists effort together. Keep in mind the above 5 points, we will fly and enjoy our hobby in a more pleasant and safely environment.
Socrce: http://www.genstattu.com/blog/how-to-reduce-the-potential-risk-of-drones/

What Equip Was Used At First Taiwan FPV Racing Competition?

Taiwan ford environmental restoration park host the first ever FPV racing drone contest, this FPV is different from the well known aerial photography UAV. FPV drone is more focus on racing, and is operated by the first-person perspective screen through the OSD Monitor system which is more realistic than a flight simulation flight game. Gens ace here ,brand from a famous LiPo factory will bring us report after the game:

What is FPV?

FPV, full name: First Person View, but generally refers to the FPV that is a first person perspective UAV(UAV battery). And what it differ from the general speaking Aerial Photography UAV (which is more focus on stability and the ability of photographing) is that FPV is more in pursuit of flexibility, speed and flight experience.

FPV is divided into fixed wing and multi-axis vehicle, although the former originated earlier,but the latter gradually began to develop in recent years, foreign countries also started some multi-axis FPV drone racing, although in Taiwan it is not yet universal ,But there are also a lot of amateur players in China, and these lovers gather together to hold the Taiwan’s first FPV drone racing contest.

Competition System

Since it is the first FPV drone racing in China ,so many rules and the system is still in groping, but generally it’s referred to other countries FPV competition regulations. The Competition adopting Circuit, a total of three times bypass, four participants ,they must bypass two main green bars obstacles, and pass through the four limit high arches,if does not get through arch,it will be required to fly again.And then elect the champion through semi and final champion.

The reason why FPVs don’t take off together is to avoid mid-air collision, the second aspect is to avoid radio frequency interference, as some times the FPVs do not response(like just lie on the ground,can’t move), and also remote control device around the site will interfere , for example, frequency interference from remote control cars, remote control vessels.
The game take place at an altitude of about 150M, Mucha - Taiwan Hang environmental restoration Crawford Park, the venue is quite open for the FPV racers to fly with few limit.

Unique gameplay

Before playing FPV, first you need to know that FPV drone players crontrol the FPVs by a first-person perspective of the Monitor (or glasses), instead of looking at the body to control it. Why play like this? It’s because the body of PFV is quite flexible, when carrying around a cone or turning flight, it is difficult to distinguish the state of the fuselage and flight attitude, and therefore it must be a first-person perspective to control the body.

Such feeling is somewhat similar to play first-person perspective flying games, therefore, FPV players in the game are all looking at the screen , a group of people take with a chair each one, and with a display screen set on the grass, the players will watch the screen to concentrate on operating the remote control, it is probably a major feature of the FPV game.

FPV kit

 

Currently FPV players mostly used their own DIY FPVs, in order to fly stable, fast and flexible, specific accessories include: FPV drones, remote control, Monitor, or glasses, FPV battery ,etc. But the cost is not as much high as imagine, single frame need about five thousand, and the cost of remote control and Monitor Level depends, about 20,000 you can play the game,but it’s not enough for these DIY Makers , camping chairs, sunshade ,and the like are also needed.

What’s the difference between NI-MH batteries and lipo batteries

Ni-mh batteries A nickel–metal hydride battery, abbreviated NiMH or Ni–MH, is a type of rechargeable battery. The chemical reaction at the positive electrode is similar to that of the nickel–cadmium cell (NiCd), with both using nickel oxyhydroxide (NiOOH). However, the negative electrodes use a hydrogen-absorbing alloy instead of cadmium. A NiMH battery can have two to three times the capacity of an equivalent size NiCd, and its energy density can approach that of a lithium-ion battery.

5000mah lipo 2s Lipo batteries A lithium polymer battery, or more correctly lithium-ion polymer battery (abbreviated variously as LiPo, LIP, Li-poly and others), is a rechargeable battery of lithium-ion technology in a pouch format. Unlike cylindrical and prismatic cells, LiPos come in a soft package or pouch, which makes them lighter but also less rigid.

The designation "lithium polymer" has caused confusion among battery users because it can be interpreted in two ways. Originally, "lithium polymer" represented a developing technology using a polymer electrolyte instead of the more common liquid electrolyte. The result is a "plastic" cell, which theoretically could be thin, flexible, and manufactured in different shapes, without risk of electrolyte leakage. The technology has not been fully developed and commercialized and research is ongoing.

The second meaning appeared after some manufacturers applied the "polymer" designation to lithium-ion cells contained in a non-rigid pouch format. This is currently the most popular use, in which "polymer" refers more to a "polymer casing" (that is, the soft, external container) rather than a "polymer electrolyte". While the design is usually flat, and lightweight, it is not truly a polymer cell, since the electrolyte is still in liquid form, although it may be "plasticized" or "gelled" through a polymer additive.These cells are sometimes designated as "LiPo"; however, from a technological point of view, they are the same as the ones marketed simply as "Li-ion", since the underlying?electrochemistry is the same.

(1) Weight

In each cell of the gens ace 3s lipo battery voltage , the NiMH is 1.2V, while the lithium battery 3.6V, lithium battery voltage is its 3 -fold. The same type of lithium battery weighs lighter than the nickel-metal hydride batteries . We can see that each different weight battery itself , but because of 3.6V lithium battery high voltage, when the output voltage of the same so that a single battery pack can reduce the number of third leaving after forming the battery weight and volume reduction .

(2)Memory effect

NiMH batteries have memory effect . Therefore, regular discharge management is also required. This periodic discharge management belongs to the fuzzy state to be treated , even some without the right knowledge discharge ( or a few times each discharge after discharge are due to different companies vary ) this cumbersome discharge management when using NiMH batteries can not be avoided . Relative lithium batteries because no memory effect, in a very convenient and simple to use . It is completely without regard to how much residual voltage , direct can be charged , the charging time can be reduced naturally .

(3)Self-discharge rate

NiMH batteries from 25 to 35% (January) , lithium batteries from 2 to 5% (May). Thereby obtained , the rate of self-discharge NiMH batteries much higher than lithium .

(4)Charging

Nickel-metal hydride batteries and lithium batteries can not overcharge resistance . Therefore, the nickel-metal hydride battery constant current charging PICKCUT control mode at the highest charging voltage , charging stops continue as the best way of charging . The lithium battery using constant current, constant voltage charging mode is best.

(5)Application

NiMH batteries : consumer electronic products, remote control toys , hybrid vehicles , renewable energy systems ; Lithium Battery: cell phones, laptops, power tools, electric vehicles, backup power lights , small household appliances.

About Newbies Getting Started with Fly Device

Now it’s very common to see many people like remote control aircraft , and there are more and more newbies start with it.So I'd like to give some ideas and suggestions on flight equipment to you, hope it can do some help.

About the budget

When many people talk about remote control aircraft, they talk about" how far it can fly, how high it can fly, and how much of it......” About these questions, I think how much you could spend on an RC aircraft depends on your economic situation:

In the case of without abundant money, it is recommended that you can DIY an aircraft yourself, and DJI is the best choice for beginners. For example, I can fly with APM open source control system to the average effect of the DJI control system,but it requires strong handling ability and secondary development of software ability. If you think it’s too troublesome, you can choose commercial finished-product flight control system. If you want to be engaged in commercial fly tasks, then the first thing to consider is the reliability when selecting the aircraft, and prices is the second thing.

In the context of current price of the aircraft, if you want to play in entertainment level, then you need to prepare at least ￥5000-5000. Don't just look at the price of the aircraft, but pay attention to its incidental consumption, such as batteries, etc.

About Choice of Aircraft

First of all,you need to make it clear that fly as a hobbyist or fly for commercial use? If you just fly for entertainment, there are many choices for you. If it is commercial, then the vital point is the reliability of your aircraft.

Compared to helicopter, multirotor is just easier for starting, as for whether you can fly good or not depends on your own.And reliability, there is no 100% completely reliable device, at this point, you need to fly frequently to improve your own skill, maintenance the device regularly, which can effectively minimize the accident probability.

For what multirotor aircraft you should choose, if you are a hobbyist, I suggest to choose quadcopter, it can fly flexibly, take photos and video, it’s good for fun.If you want to make commercial aircraft photography, then you can decide to choose the devide by what camera you will use and the take-off weight.

About Choice of Remote Control Device

A reliable remote control device is one of the guarantees of your safe flight. You can choose the world's three largest remote control device:Futaba, JR and Sanwa, and these non-mainstream remote control devices Hitec, Graupner are also very reliable.

About Battery and Charger

Now it’s the era of lithium battery, so we don’t talk about the related knowledge about Nicd and NiMH battery at present. Lithium battery is generic terms, the common lithium battery including Lilon battery, LiPo battery 11.1v 2200mah and LiFe batteries.

It’s very common to see LiPo and LiFe battery in the remote control model. For example, the most popular electric cars-TESLA,equipped with more than 7000 pieces 18650 encapsulated Lilon battery. Our aviation model use LiPo batteries most, which has 4 basic parameters:the battery voltage & how many cells, battery capacity, continuous discharge ratio, and charging ratio.

The battery voltage general use "V" as the basic unit, a single LiPo battery’s voltage is 3.7 V, if it is in series connection, then the total voltage of battery pack=single cell’s voltage * series connection cells amount.The series connection cells use”S” as basic unit,for example:6S means 6 cells in series connection,so total 22.2V.

Battery capacity general use"mAh" as the basic unit, a larger capacity battery,its discharge time will correspondingly increase, but volume and weight also increases.

Continuous discharge ratio is used to describe the maximum discharge capacity of a battery, generally use”C” as the basic unit, then the maximum discharge current, the maximum discharge ratio is related with the battery capacity.The calculate method is: discharge current (A) = battery ratio C X [battery capacity (mAh) / 1000 ], such as a piece of battery’s capacity is 5000 mAh, continuous discharge ratio is 45 C, then the battery maximum discharge current is 225 A.

Somebody said: "A device with 25 C batteries can be normal used, but it will burn the ESC when use 35 C batteries", this statement is wrong. The system total current depends on the overall system load and fixed consumption, so it has nothing to do with the battery, the battery parameters only describes the discharge capacity of a battery, but not to say that once you connect the battery, then the battery’s maximum current start output. Therefore, choose a battery depends on the the whole system’s requirement, and match the parameters according to the system’s requirement.

On the market, the battery quality and price is various, here I would recommend our hobbyists choose battery with big brands and high reliable like Gens ace 2s lipo, Hyperion and so on. For myself, I use Gens ace & Tattu batteries, who with high performance, excellent quality and terrific after-service. They are worthy of recommendation,more about batteries:http://www.genstattu.com .

Above are the choose of fly device I recommend, I wish you have a good time.

The differences between Smart Battery And Ordinary Battery

The DJI new-released M600 brings big breakthrough to the all UAV Area. Not only the A3’s self-adaptive flight systems and new RONIN-MX is , but also the pretty long flight time supported by six smart batteries.
It introduces that a customized battery management system and power distribution board allows all six batteries to be turned on with one button press, and keeps the system in flight in the event of a failure of a single battery, and allows users to check the battery status in real-time during flight.
As we all know, M100 has adopted smart batteries to support the big heavy device for more professional aerial photography and longer time and distance using. Then what are the differences between Smart Battery and Ordinary Battery, why they are more and more widely used in the electronic ndustry?

1. Definition

A smart battery/A smart battery system(SBS) is a rechargeable battery pack equipped with a built-in battery management system. The smart battery can internally measure voltage and current, and deduce charge level and SoH (State of Health) parameters, indicating the state of the cells, calculated and predicted information to its SMBus Host under software control.
A basic SBS including 3parts:System Host,Smart Charger and Smart Battery.

1.1 Advantages

Ordinary Battery

Ordinary Batteries are illusive and do not exhibit visible changes as part of usage from both the user's and the equipment's perspective. It looks the same when fully charged or empty, new or old and in need of replacement. A very big defect is that they represent an unpredictable source of power.

Firstly, a user has little knowledge that their battery is about to run out or how much operating time is left.

Secondly, equipment powered by the battery cannot determine if the battery, in its present state, is capable of supplying adequate power for an additional load (such as spinning up a hard disk) or not.

Smart Battery

The Smart Battery presents an ideal solution for many of the issues related to batteries used in portable electronic equipment.
The Smart Battery provides the user with accurate state of charge information along with an accurate prediction of the remaining operating time.

It also Provides state-of-charge and full charge capacity; reflects capacity estimations; records battery history; including cycle count, usage pattern, maintenance requirements, max error, etc; configures charger to the correct algorithm; reminds user of periodic service; protects 7.4v lipo battery from unauthorized use; and to prevent accidental system cut-off.
This is why smart battery is more and more popular and widely used.

An excellent smart battery brand-Tattu plus, also have all these advantages when using on your drones.

1.2 Charger

Ordinary Batteries chargers : It must be individually tailored for use with a specific battery size and chemistry and may cause damage if used on another battery.

Smart Battery Charger: It periodically communicates with a Smart Battery and alters its charging characteristics in response to information provided by the Smart Battery（2s 7.4v lipo battery）.

1.3 Defects

The Smart Battery will add 25% to the cost when compared to a Ordinary Battery.
It complicates the charger, most chargers for intelligent batteries are hybrid and also service for non-intelligent batteries.Requires periodic calibration.
Compared with the Smart Battery’s disadvantages, it has more and valuable features.We believe in the future, people will creat more progressived technology on Smart Battery and overcome the price and other problems step by step.

Choose Helicopter,Airplane or Multirotor ?

Multirotors are very popular these years after DJI economic and recreational multirotors’ coming.And they attract many newbies to the RC Hobby and UAV areas.But many new beginners express that they are confused to choose heli,airplane or multirotor as a beginner.About how to work,we have posted in the last article(http://rclipobatteries.blogspot.com/2016/04/take-you-to-insight-into-uav-terms.html）,and they are still quite different in many aspects,now we will compare them in some important ones.

In Operability:

In terms of the operability,multirotors are the simplest cause their rotors can change the thrust and torque produced by each.They can fly with no need of runway,and hover after taking off.So it can help to observe one object for a long time by hovering in the air.
However,the airplane’s(Fixed-wing aircraft’s) landing and taking-off needs more open field.
And the helicopter can VTOL in congested or isolated areas,but its drive device controller design is difficult,and the controller adjustment is also very difficult.

In Reliability:

When it comes the mechanical reliability,multirotors don’t have movable parts,it basically depends on the reliability of the reliability of the brushless motor, so the reliability is higher.In comparison, the airplanes and helicopters have mechanical connection parts,they will wearing out in flying and lead to a decline in reliability.And multirotosr can hover,which means that the flight range can be controlled easily,so they are safer than airplanes.

In Stability:

Helicopter’s stability is weakest.Many of the simplest helicopters don’t require advanced systems to be pretty stable.
Airplane’s stability is better than helicopter,but its speed is fastest.
Multirotor’s stability is strongest.A multirotor has 3,4,6 or 8 different motors in its shape.You can control the rotor blades to perform all sorts of aerobatics and tricks.In most cases,multirotors are more stable than helicopters and airplanes.The stability means that the machine is able to perform and keep performing an instruction commanded by the remote control until other instruction is transmitted.
The higher the stability the easier to fly.

In Application:

If you intend to transport something,such as a camera or another mid-weight object,then a multirotor is for you,not just because of the above advantages but also because they have a bigger body.Many amazing videos online about high buildings,wonderful landscapes,and crazy aerobatics were filmed using one of these.And multirotors can be using in more areas like investigation,plant protection,monitor the?situation, rescure in emergency and so on.
A helicopter may get balanced to one side and that would affect the center of gravity, altering the entire functionality of the device.But its flexibility is best cause the small body and responds quicker than the others because there is only one or two motors that need to be adjusted when sending a command.It is more common to see RC helis doing all sorts of maneuvers and tricks.A very exciting vedio shows RC helicopter mops the floor and wall use its rotor blades.

If you want to choose one machine who has fast speed,fly in long distance and longer time,then an airplane is better for you.But because it is hard to controll and work,it is not common used yet.

In Your Expertise Level:

If you have very little or no experience with RC flying devices,you can choose RC helicopter to begin your hobby because RC heli works with easier channels when compare to the other two.Multirotors have more complicated channels and function you need to control.And Airplane is the hardest one and not very common nowaday!Definitely,it’s more fun and you will get great flight experience when flying multirotors.

In the Budget:

In the past a multirotor is much more expensive than a RC helicopter,certainly,airplane is most ecpensive.But with the time this has changed and now you can get a great quality multirotor in a pretty reasonble and affordable price for many.However,you need to think of spare parts when choosing one of these machines.Please don’t care about the price merely when purchasing the first device.Do be care about the spareparts and check the important parts price like motors,battery,rotor blades and so on to make sure you can get them easily when needed to change.In general,the budget spent in a multirotor will be higher than a RC heli because of the big body.The most normal budget is that multirotor will need bigger capacity battery than RC heli.So you need to choose a reliable brand to use.I prefer Gens Ace 2s lipo and Tattu rc car batteries lipo battery whose quality is excellent in a good price.

From all the above analyze and comparison,now it’s up to you.Choose which one Multirotors,RC heli，or Airplane,it depends on yourself. No matter which kind you choose,I believe you will fall in love with them and enjoy yourself greatly.

The battery grow to be necessities of life

An electric battery is an energy conversion and storage units that convert stored chemical power into electrical vitality?

With the speedy formulated science and engineering, improvement of human residing standards, much more and even more variety of new options, high-tech electronic merchandise are extensively used to people.Correspondingly,it's going to market the arising of all sorts of various visual appeal and performance batteries.
The huge brand such as Nanfu battery,GP battery,Panasonic and so forth are identified by people today.Yet another two significant brands have attracted around the world focus with their fantastic good quality,innovative design and performance-Grepow and ATL.

Shenzhen Grepow Battery Co.,Ltd is a expert R&D,design,manufacture and selling company.From the establishing year 1998,Grepow has changed greatly in its development.

Grepow manufactured and supplied Ni-Mh battery from 1998 in a large quantity with its stable excellent,reasonable price and perfect service.It is actually a kind of no-pollution,no cadmium new green power battery extensively utilized in areas like civil daily life,cars,toys, telecommunication and so on. We recommend NiMH for applications where a device has already been designed to use AA type batteries.

This batteries, however,have a short lifespan,heavy,low discharge rate,and low voltage characteristics,so Grepow update to manufacture 5000mah Li-po battery from about 2009.

With a professional R&D team,and extensive experience in manufacturing battery, fantastic technical documentation and advanced processing management system,Grepow's 2 major brand Li-po battery-Gens Ace and Tattu are greatly identified and used in RC ans UAV.which ensures battery's consistency and stability in mass production.

Gens Ace batteries are very useful for embedded electronics. They offer the highest density readily available on the market. Because cell phones predominantly use this battery type, they are easy to find for reasonable prices. They do require special charging, so be sure to use the right charger for the job.

Gens Ace LiPo batteries cell has a nominal voltage of 3.7V(lipo 3s voltage). When fully charged you will see nearly 4.2V on the cell but it can quickly drop to 3.7V under normal use. When depleted, the cell will be around 3V. This means your project will need to handle various voltages if you are running directly from a cell. If you need 5V you will need to combine two LiPos in series to create a 7.4V pack and regulate down to 5V.

We recommend Gens Ace LiPo for nearly every portable application like helicopter,RC,jump starter and so on.They are fairly robust and when employed safely provide a great power source.

DJI-the world market leader in easy-to-fly drones and aerial photography systems,adopts Grepow's Tattu battery to control its famous UAV.With all the advantage of experienced R&D, humanized service,mass production capacity,amzing explosive power,Tattu is widely made use of by other significant brand GoPro,Panasonic,LG and so on.

In the future,Grepow's Tattu will be applied in a lot more fields and Grepow will pay awareness and be allergic to more potential development trend and supply better bettery or other amzing products to the world.

The awesome light demonstrate by a hundred Unmanned aerial autos!

Intel held a super light show recently the light show created up of a hundred drones. This time should be light show tends to make it achievable for Intel guinness planet record, recording the name: simultaneously make up uav flying inside the sky. And these unmanned aerial automobiles (uav) also formed a queue, which changed in conjunction with the music on the end on the functionality of unmanned aerial automobile (uav) during the air posed for Intel's formation unexpectedly. For all those drones hordes performances, the whole system both imaginative and overall performance technologies are truly super crazing!

Related to the technical particulars on the light demonstrate, the information provided by Intel was not a lot, only identified to arrange the functionality from the software is created by Intel. This secrets and techniques result in the curiosities of citizens. Although we usually do not know the technical element,As is identified to all, the battery have to be essential aspects.


Get heavy-duty attributes inside a battery pack using a long-lasting lifestyle. This Gens Ace 50C 4S 5000mAh 11.1v lipo battery pack is meant to electrical power your remote-controlled model so it achieves peak overall performance. With attributes like ultra lower resistance 12 AWG soft silicone wire leads and our patented Higher Existing Universal Plug Procedure, you may depend upon. Also incorporated: plug adaptors to match Deans, Traxxas, Tamiya and EC3 plug styles.

Gens Ace battery packs attribute revolutionary building and resources which includes: Substantial impact resistant polymer outer situation; Grade A Lithium Polymer Cells; Posi-Weld tabs for the highest durability and conductivity doable. Tend not to leave anything to opportunity with your batteries. Gens Ace lipo batteries provide full capacity & discharge as well as being the best value batteries in the hobby market today! Our product line ranging from 1s to 6s, 1s lipo, 2s lipo batteries, 3s lipo,and so on, many choice for you.


Battery packs achieve the desired operating voltage by connecting several cells in series; each cell adds its voltage on the total terminal voltage. Parallel connection attains higher capability for increased present handling; each cell adds to the ampere/hour (Ah) count.


The nominal voltage of a Li-Po battery cell is 3.7V (about 4.23 V when fully charged). Two and three cell batteries are available giving us a choice of 7.4 or 11.1 volts. Li-Po batteries can provide substantial present, 6A continuously and 12A 5000mah lipo battery for short (30-second) bursts. Li-Po cells have a flexible, foil-type (polymer laminate) situation. Since no metal battery cell casing is required, Li-Po batteries are very light. Because from the absence of metal casing and less space utilized in intercell spacing, the energy density of Li-Po batteries is over 20% higher than that of a classical Li-ion battery and store more energy than nickel-cadmium (Ni-Cd) and nickel metal hydride (Ni-MH) batteries in the similar volume.


Many radio-control enthusiasts experience disappointment using the cycle life of their Lithium-based batteries in electric aircraft. Often this is because they're not entirely sure what's going on inside the cheap lipo RC batteries, and choose a capability or voltage that's inappropriate for their application. Ultimately, this manifests itself in swelling or ballooning of a Lithium battery. This editorial attempts to explain what's actually going on when this happens.


If you plan on using rc car batteries lipo packs for your DIY Electric Skateboard Build. There are a few large quality RC lipo battery which I highly recommend as well as a few cheaper options as well.


That's about it for this portion .Hopefully this function will help you appreciate and get the very best from your batteries and uavs!So go and to choose the correct voltage(2S-6S) and size(physical dimensions) to match in your motor vehicle!

How to choose the best Lipo battery for FPV

Does Larger battery allows for longer flight time?
Unfortunately the increase of flight time isn’t proportional to the increase of battery size.As the battery gets larger, the increase in flight time becomes ineffective. Eventually it will reach a point where it just doesn’t gain any more flight time with bigger battery (even lose flight time). This is mainly caused by the weight of the battery. Also note that the heavier your copter gets, the less agile it will be.
There are techniques you can use to help with selecting FPV battery – creating graphs and mathematical model in Excel,
which I found really useful when comparing various products of the same kind. I recently bought some 4S batteries for my FPV quad , like Turnigy Nano 4s batteries and Tattu 4s batteries
I will use these as an example. This technique should be useable for any multicopters, including the 250 mini FPV quad.

List All Batteries and Create Graphs

First, list all the batteries with different capacities, brands of the same cell number. You can include their weight, price, etc in your table. For example I was looking for 4S lipo battery for my FPV and here is the table I created.

Listing batteries and data

From these data, you can create some very interesting and useful graphs, for example I usually do
Density, which is capacity per gram (= capacity / weight)
Value, which is capacity per dollar (= capacity / price)

From the above graphs, if I am only going for best performance and not worry about the price, I would definitely go for 2650mah, 3000mah, or 3300mah FPV batteries.
These graphs tell you some insights into which battery has the highest price/performance ratio, but it doesn’t tell you whether this is the best battery for your RC aircraft, quadcopter or tricopter. To do that, we need to create a mathematical model.

Build Mathematical Model to Estimate Flight Time

By using this model, you will be able to calculate the flight time of any battery. Of course, this is just an estimation, but it will give you an rough idea what battery to go for, and save you from spending too much money and time to try each type.First of all, you need to get one battery first, and collect data using it. Basically the data we need is flight times under different loads. You can collect some other data as well to help you identify what is the max load your FPV can take, for example, the throttle value, current etc.
For example, I used a 3s 2200mah lipo battery, and tested the flight times under different load weight (0g, 110g, 220g, 340g, 405g, 515g – all these weights are physical items I can find in the house that’s why the uneven numbers). This as below is the data I collected from 6 test flights.

I always land the FPV when the voltage alarm beeps, which is when the voltage reaches 3.5V per cell. The column “Actual Capacity Used” is not really needed, but I collect it just to make sure my data is valid. I got that from my charger, when I charge it fully at 4.2V per cell, I know what capacity was used in the previous flight.?I then work out “mah / second”, which is the speed of power consumption, and we can draw a graph from this.

So here is the model. “Cap at 3.5V (86%)” is the effective capacity that can be used during a flight.?I am making an assumption that the voltage drops down to 3.5V when 86% of battery capacity is used. “mah/s” is calculated from the above equation, we can work out the mah/s for each FPV battery, depends on their weight.

And now the estimated flight time is roughly equals to effective capacity divide by mah/s. For example for the 6000mah battery, the effective capacity is 5160mah, and the speed of power consumption is 5.75mah/s, so the flight time would be 898.16 second which is nearly 15 mins.

That’s the analysis I always do when buying FPV batteries. There are a lot of assumptions above, so also do your research on the flight time, ask people for their experience, to verify your theory.

Tips for the model lithium battery store

Model lithium battery has the characteristics of the high capacity,high rate and discharge ability strong,and has been widely used by more and more model race enthusiasts.because of this characteristic,the model battery storage will need certain conditions and methods,to avoid battery damage.store the model lithium battery,gens ace 2 lipo (TATTU) tips and made some caveats:

1.model lithium battery stored voltage

Model lithium battery is general a Li-po battery,the safe use of the lowest voltage is 3.6V,but in order to ensure that the battery will not damage due to excessive discharge,the lowest minimum security value using of 3.7v,the highest charge cut off voltage of 4.2v.The highest voltage, battery energy storage for peak,if maintained for a long time without the use of high voltage, lithium-ion cell drum up, in order to avoid the occurrence of such a situation, the model lithium battery storage voltage control in general 3.7 ~ 3.8V.

2.Lithium battery storage conditions

Model lithium battery storage condition is the most critical temperature and humidity,there can not direct sunlight and high temperature easily lead to explosion or muster;so that,the battery will be stored to avoid light lithium tin or plastic box,if a single model of lithium battery discharge performance is very good, also need to purchase a model lithium battery explosion protection bag, this kind of strengthening bag internal net, can prevent high-energy lithium battery explosion in the event of a leakage model cause harm to other items.

3.using the model lithium batteries after storage

Lithium battery self-discharge is very small, when stored models of lithium batteries don't need to be activated,usually when restart, can be directly connected to the charger power charger. but in order to be sure, every time before restart, had better use multimeter measure the total voltage of model lithium-ion batteries, lithium battery storage for a long time,voltage may be lower, at about 3.6V（2s 7.4v lipo battery） are safe.

5 tips to make your RC car go faster

One of the most popular topics in RC is speed.Experienced hobbyists prefer to point how two questions when they see an RC running: how fast and how much? we’re all a little obsessed with speed, and more specifically, going faster. Check out these five top ways for going for faster with your electric ride.

Higher Kv or Lower Turn Motor

This is the old fashion way to get more speed–add horsepower. Most brushless motors have Kv rating and the higher the Kv rating, the more rpm a motor will put out per volt. If the Kv rating isn’t listed, a turn rating will often be used. With brushed and brushless motors, a lower turn rating equals more rpm. Always check the limits of your speed control before installing a “hotter” motor. Increasing your motor’s Kv rating 2,200Kv can yield an increase of 20mph if your are using the same brand and model motor and have batteries that can supply the needed juice.

Higher Voltage Battery

To do this,get 3 or 6 rechargeable 9-volt batteries. Connect them in series pairs - gens ace 2s lipo batteries to make 18 volts, then two more in series, with this series connected in parallel to the first.for example, go from a 2S (2-cell) LiPo to a 3S 11.1v LiPo battery. This jump from 7.4 volts to 11.1 volts can increase speed by as much as 25mph! The more batteries you have in series, the faster it will go. The more you have in parallel, the longer it will run. By the way, make sure your speed control can handle the extra voltage or the only thing you’ll be fast is going to the hobby shop for a new speed control. You’ll also want to make sure your chassis can accommodate the the larger pack.

Aerodynamic Body

If you’re only going 25mph, aerodynamics aren’t going to play too noticeable of a role. If you’re going 50mph, aerodynamics will certainly start becoming influential on top speed. In addition to mounting a low profile, sleek body shell, mount it as low as possible and keep the wheel wells as small as possible. Open up the rear of the body to let trapped air to escape.

Better Grip Tires

All the extra power won’t do you much good if you can put the power to the ground and put it to use. Invest in some high-quality aftermarket tires in a soft compound and you’ll be going faster.

Yourself

Spend some time practicing the handling of your car out on the track. If you want your car to go faster, then you probably plan on racing it or you’ve been racing it. The winner of the race isn’t necessarily the person with the best car, but the person who has the best handling car and can best tackle the track. Find ways to get around the track easier and you’ll get faster lap times.