In THz, in 3 minute fights, we often use only 3Ah per fight. But sometimes it is as much as 6Ah. I would recommend 3 packs of Sanyo N-3000CR C cells, due to their low internal resistance (3.4 mOhm per cell), which means high current delivery and the cells dont get too hot. Remember that with NiCads or NiMhs, it is usually current delivery that determines the number of packs to use, rather than capacity.

(Message edited by terrorhurtz on August 21, 2006)