RE: Receiver batt. pack discharge
you can cycle it fine. you mite want to replace it 3 years is a long time to use it. but a few guys still use the packs that came with their futaba atack 4 am . trans i would not risk a plane for a 30 dollar pack. but i have bought 100 dollar packs and them be bad so you mite be ok just keep a check on it.