TATTU 300mAh 2S 75C PH2.0 LiHV. 1x TATTU 300mAh 2S 75C Lipo. Capacity : 300mAh. The connector plug: JST-PH2.0 high current ultra micro, Powerwhoop, mCPX. Balance Plug : JST-XHR-3P. This is considered normal - therefore, a change in battery capacity is not covered under warranty.