显示标签为“4s 1300mah lipo”的博文。显示所有博文
显示标签为“4s 1300mah lipo”的博文。显示所有博文

2016年7月18日星期一

How to extend battery life and why use frequently can keep the battery best performance?


If the traditional Ni battery is charged for too long, the liquid inside would crystallize. In the way, to maximize the performance, the full charge and discharge are required. However, for the 2 cell Lipo battery, we can charge it whenever we are convenient.

It is a false about the lifespan of lipo battery that we should replace the lipo battery after charged for 300-500 times.

Instead, the factor influenced the lifespan is the charging cycle, and the times of charging will not directly influence the lifespan.

A charging cycle refers to the period from full power to the completely empty power and then fully charged. That does not mean charging for one time, as the following picture shows.



According to the picture, the battery is charged for 20% after the first time 40%. Then, after consumed some power, it is charged by 30% and 20% separately. In the half of this 20% (at the time of 10%), a charging cycle has been finished. And then, the next cycle begins.

For example, the first day, we charge the battery after consumed half of the power, and the second day, we repeat that process. This is just one charging cycle rather than two. Therefore, a cycle may be finished by several times of charging. Every single charging cycle will reduce the power slightly. However, a superior battery can maintain 80% power after many charging cycles. That is why some lipo battery can use normally after two or three years. Certainly, it is also needed that we replace the lipo battery if the lifespan has ended.
The lifespan of lipo battery is commonly 300-500 charging cycle. We set the Q as the power provided by one-time fully discharging. Ignoring the reduction of every charging cycle, the lipo battery can power 300Q-500Q through its lifespan. Accordingly, if we charge the battery after consuming ? power, the battery could be charged for 600-1000 times. (if we charge the battery after consuming 1/3 power, the battery could be charged for 900-1500 times.) we cannot tell the exact number of charging times if we charge randomly. In a word, the total power 300Q-500Q is constant. Therefore, the lifespan is related to the total charging power rather than the charging times. Besides, the difference between the influence of deep charging and discharging and the influence of light charging and discharging to lipo's lifespan is similar.

In fact, light charging and light discharging benefit more to the RC lipo battery. Only when the lipo battery is calibrated by the product has the need to charge and discharge battery deeply. Therefore, we can use the lipo battery for convenience and do not have to concern about the lifespan.

If the lipo battery is used above the regulated temperature (over 35 degree centigrade), the power will continuously decrease, which means the flight time would not be so long. If charged under the high temperature, the battery would be further damaged. It is unavoidable that storing under the high temperature will hurt the battery's quality.
If using below the 4 degree centigrade, you would also find the flight time of the battery has been reduced, and even some original lipo batteries of mobile phones cannot be charged. But, this situation is just temporary. Differ from using in the high temperature, once the temperature gets higher and the molecules inside the battery are heated, the battery would recover to the normal energy.
To maximize the performance of lipo battery, we should use it more often and make the electron flow. If we cannot use the lipo battery frequently, please remember to make a charging cycle and calibrate it (charge and discharge deeply) every month.
Source: http://www.genstattu.com/blog/how-to-extend-battery-life-and-why-use-frequently-can-keep-the-battery-best-performance/

2016年6月7日星期二

Why the Consumer UAV So Popular?

The history of UAV can be traced back to last century. But recently, with the release of consumer UAV, it is not merely for the upper-class but becomes an affordable "toy" for all the public. The popularity of UAV should be attributed to the joy and operability. When you turn on the aerial photograph mode, you could observe the surroundings through FPV (First Person View), which is a totally new shooting perspective and full of fun. Besides, it is easy to operate and control, especially for the green-hand.
The design of multi-rotor, flying with four or more rotors, is massively adapted into the consumer UAVs, which is the simplest mechanical structure among the three types of aircrafts andis motivated by the motor,and relatively the UAV battery is light weight and long flight time. It has the obvious advantages of simple machinery, being able of taking off and landing vertically. However, the multi-rotor has the comparatively short flight time and less payload.

The quadcopters and multi-rotor UAVS gain the most market, which are lightweight, agile, safe, easy to operate, able to hover in the air and other strengths. The multi-rotor UAVs gradually turned the toy plane into the pragmatic aircraft for aerial photograph. You could see the synchronous picture as long as you connect the UAV with Wifi. Similarly, in the actual flight, you could watch the UAV or the screen. Apart from aerial photograph, the UAVs have been applied in express delivery, disaster relief, patrol, providing network and other fields.

What is the difference between consumer UAV and professional UAV for aerial photograph?


The consumer UAVs commonly have the affordable prices for ordinary people, varying from one hundred to thousand dollars, light weight and operability. For most consumers, the main purpose of consumer UAVs is entertainment. Conversely, to operate the aerial photograph UAVs, people should experience the professional training. Another advantage, especially important for the green hand, for UAVs is that it does not need to assemble by own, which means that we could fly as soon as we buy it.
The aerial photograph is the main function of the consumer UAVs, but it still has great disparity with the professional aerial photograph UAV from the image quality, flight duration, the ability of withstanding bad weather, high-speed of image transmission and other perspective. The professional one could load with professional digital camera, whose image is more clear and has higher pixel. Naturally, the professional one has higher price, from ten thousand to hundred thousand dollars.

In a word, due to the easiness of operate and no need to assemble, the green-hand can control it skillfully after a few practices. And it has a lot of designs of one-touch operation, such as return and land automatically. Also, the price is much affordable for ordinary players.


Why we cannot buy the cheap drone?


It is undoubted that all the UAV fans want to have an own UAV, but the equipment of well-known and mega brand has the price of thousands dollar, which is not affordable for most of players. Therefore, some people will buy the cheaper UAVs, maybe tens of dollars. But is it wise to buy such drones?

To answer such question, the first thing we should clarify is whether we need a better fly experience. The experience depends on multiple factors, and the safety is the most crucial thing. We should choose those qualified products to guarantee safety; however, the cheap UAVs commonly do not have the function GPS stability, resulting in the difficulty in controlling and the instability. When the emergency happens, it cannot hover in time and is likely to cause danger. At the same time, the cheaper UAVs do not have stable holder, which can rotate, so that it could not shoot the steady images. Furthermore, the difficulty for fly improves without the function of image transmission. (It is impossible to see the picture.) Consequently, choosing a safe and stable drone, no matter the price, is wise for all the UAV fans.


Is the multi-rotor UAV easy to operate?


Take Xiro explorer, a quadcopter UAV, as an example; it is mainly operated by the rocker. The left rocker can control the height and direction (up or down and rotate). The right one can control the movement of four directions (forward, backward, left and right). The position can be set manually. The rocker of remote-controller is more sensitive, so we should carefully and slightly operate it to fly stably.

Xiro explorer have the function of GPS emergency hover and making a return. After you choose the landing position, only by pressing one button that it can land steadily. Hint: the landing position should be chosen cautiously. On one thing, do not land on the crowd in case of causing injuries; on the other thing, choose the spacious and smooth place to avoid the damage of drones. In a nutshell, it is easy to operate, but to shoot high-quality image, more time given to practice is needed.


What should be noticed to fly UAVs?


Though it is easy to control and operate, we should know more about the safety common sense, and certainly, the basic operation process. To avoid the air crash due to the power-cut, 14.8V Lipo Battery from Gens ACE is strongly recommended, for it has long flight time, easy to assemble and stability. Additionally, setting the prohibited fly areas is required. The flyers should pay attention to the rules and laws, apart from enjoy the drones.

2016年5月26日星期四

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/