That's good advice above.I used to do a rushed charge session at one amp the night before flying with a swallow acdc charger.I use eneloop five cell 6 volt packs and in about two hours i could charge the tx(yes!),two flight packs,two glo sticks and both of my 7.4 volt rotostart batteries which i thought was good going over a beer or two.Now i do the glo sticks and starter battery during the week if they need it and the tx saturday arvo.Overnight charge for the rx pack then unplug sunday morning before going to the field.At .01 of an amp it takes a lot longer but the beer seems to taste better