Best bet is to get the biggest mah and c rating you can afford. Some guys say the c rating is hype, but in my personal experience, have noticed a difference. YMMV
Gorilla Size Racing
R10 USGT, TRF416 USGT, DB10R, TA05R VTA, R40, RS4 3SS, RS4 super, Savage, Hellfire.
Youthful enthusiasm only rules until old age and common sense exert themselves