Venom Group DRIVE Series Traxxas X-Maxx RC 50C 4S 9000mAh 15189
RCFlight - Traxxas Laddare EX-Peak Live 12A och 2 x 4S 6700mAh Batteri
Traxxas RC LiPo Batteries with 4s Cells for sale | eBay
Biggest batteries I've found to fit in the stock XRT battery tray are these HRB 9500mah 4s 120c packs. The Lectron pro 5200's the hobby sold me are way too small. These