If you know how much continuous current will be drawn and the capacity of the pack you want to use, you can easily determine what C rating you require. If you are drawing 5A from a 1320mAh pack, simply take the current and divide by the capacity: 5A = 5000mA, 5000mA / 1320mAh = 3.8C.
Burst Current:
LiPo batteries are also given a C rating in terms of burst, which is how quickly the battery is able to discharge for a short time. A burst rating of 20C would mean a 2000mAh battery could supply 20 x 2000mA = 40000mA or 40A for a few seconds.
Selecting the Best LiPo Battery for Your RC Helicopter
To select a battery for your rc helicopter, you first need to know what voltage you require and how much current you will be drawing continuously.
If the motor in your rc helicopter is rated to work with 11.1V, you would need a 3 cell battery.
If you need to draw 20A, and you would like your rc helicopter to have a 10 minute (1/6th of an hour = 6C) flight, you would need a battery with 20A / 6 = 3.3A = 3300mAh.
This means you would need to put a 3s 3300mAh battery with a C rating of 6 or higher in your rc helicopter.
Thunder Power RC has a LiPo battery for almost any electric RC helicopter. Always Remember These LiPo Safety Instructions
Remove the battery pack from your rc helicopter before charging.
Only use chargers designed to work properly with lithium polymer batteries.
Always place your LiPo on a fire-proof surface while charging or use a LipoSack.
Never leave your battery unattended while it is charging.
Never charge a lithium battery if it is below 3.0V per cell.
Never charge a lithium battery that is puffed up, or damaged in any way.
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