XRAY’s Supercharged 1200 NiMH 2/3 6-cell micro pack features super high ability specially-treated 1200mAh batteries assembled in a pack to produce the best energy, unmatched top rate, and unmatched run-times the M18. The battery pack will fit standard M18 composite framework and the graphite framework. The pack includes standard micro plug, therefore it will efficiently fit any speed controller. For greatest performance we suggest using top-quality XRAY XMC300 speed controller.