Battery Capacity for a 20cc RC airplane

by Cristian
(California)

Hello, I am putting together a 20cc plane in which I installed 5 servos hitec HS-5645MG and a receiver spektrum AR620 with a ubc of 6 v output for receiver.

My question is: what would be the necessary capacity of the battery to supply the current demand of the 5 servos.

I put a lipo battery 2s 1500mah. But the servos fail to stop working apparently for lack of current.

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2 battery packs
by: rcdude07

As stated in another reply to you, you need 2 different battery packs: one for ignition and one for RX.

Here are some older threads to get you guided in the right direction:

http://www.rcuniverse.com/forum/beginners-85/11505520-gas-engine-set-up.html

http://www.rcuniverse.com/forum/beginners-85/11505520-gas-engine-set-up.html

https://www.rcgroups.com/forums/showthread.php?1420852-What-servos-batteries-switches-for-my-1st-gas-plane

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