thanks for all replys have sucessfully charged this pack with new electriflighte charger usining my glowfuel battery in my glow fuel box. am stillnot sure how long this battery will last but it seems to work am thinking of putting banna plugs on charger and using the 12volt starter plugs on control panel to recharge my li-pol batteries. what is the main difference between 3 cell and 2 cell 12amph batteries. is it the power or the length of time to run thanks