Gary, I use 5 cell as well with a return tube from planes tank vent back to fuel can vent, in a closed loop. I think I pumped a whole 5 gallons one day and when I recharged the 3800nimh it took 1400mah. Pretty easy goin.
It does take longer but there is no need to watch the process and it gets done without tank splits Like Kelly mentioned.
ORIGINAL: grbaker
I use a 5 cell NiMH 4400 mah pack on mine.
Copcat, I like this fuel container, where did you get it? I have a dark blue one from JM and it is darn hard for me to see the level inside. Anybody know?
Joe