This is my quad-cell/fet modded monster. Its a ZZ body & chassis, a fet modded 45mhz bit charge booster pcb, and 4 little 1/4aaa 1.2 volt 110mah nimh batts (4.8 volts total/series). Now my question is, does anybody else use quad-cells and how do you charge them? I'm having problems getting this thing charged properly.