servos fail to stop working apparently for lack of current.

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.