FL350, one thing nobody mentioned is the fact that the connecting wire on receiver packs is very small. This is the limiting factor on the charge/discharge rate most of the time. While a receiver pack may give up 4 amps during a short discharge operating several servos during flight, a constant 4 amp load will melt the covering on the wiring and the connectors. Play it safe and stay at less than 1 amp.

Ed M.