Serial or Parallel connection for your RC models/Drones

Many of you want to increase your RC models/Drones speed or playing time ,and find a way to increase the voltage or capacity.Exactly,through connecting several cells in series,battery packs achieve the desired operating voltage.Each cell adds its voltage to the total terminal voltage.Parallel connection attains higher capacity and the same as current handling.Each cell adds to the ampere/hour (Mah) count.

Serial Connection

One battery’s positive connects the next battery’s negative and all connect like this.In this way,the voltage increases,but the capacity unchanged.That is to say, the total voltage is the sum of all series batteries voltage.

Connecting a pair of 1s, 3.7v, 5000Mah LiPo's in series:

This will increase the VOLTAGE x 2,but the capacity will remain the same for a result of 7.4v,5000Mah lipo battery.

RC models/Drones needing higher voltages,use battery packs with two or more cells connected in series.The advantage is that you can increase the speed of your RC models/Drones.But high speed for a long time will shorten the battery lifespan,so take care and operate in an appropriate speed.

Parallel Connection

One battery’s positive connect the next battery’s positive and negative connect negative,all connected like this.The voltage is unchanged,but the capacity increases,correspondingly,the current also increases.

If higher currents are needed and larger cells are not available or do not fit the design constraint, one or more cells can be connected in parallel. Most battery chemistries allow parallel configurations with little side effect.The voltage of the illustrated pack remains same, but the capacity increses,current handling and runtime increases too.

Connecting a pair of 1s, 3.7v,5000Mah LiPo's in Parallel:

This will increase the Mahx 2 but the voltage will remain the same for a result of 3.7v, 10000mAh.

Parallel is 3.7v,but you have to based on your RC models’/drones’ norminal power.The voltage is unchanged,but the current is big, after you’ve operated your RC models/drones for a long time,the excess current would shorten the lifespan of your 7.4v lipo battery.So it would do more harm.Please don’t parallel too many cells,keep the current under the norminal current,and you need to change the charger.

If you really want to play them for a longer time,and save you a lot of trouble,you can buy one new battery.The most important thing is that you don't have to change the charger because of the increasing capacity.

Either in serial or in parallel connection, the output power of the battery pack is increased. Parallel Connection is to increase using time,while Serial connection is to increase the speed.