Cox Hobbies Lipo 2S 7.4V 250 E300 SC RC Airplane FEATURES: Pre-installed balance and red 2-pin connectors INCLUDES: One 2S 7.4V 250mAh LiPo Battery REQUIRES: Installation in the airplane 2S LiPo Charger, COXP5820 A/C Power Adapter, COXP5821