【Parameter - Material: Lithium polymer, Voltage】: 11.1V, Cell: 3S, Capacity: 2200mAh, Discharge: 35C, Charging plug: JST-XHR-4P, Discharging plug: Dean-Style T, Pack: Short Pack battery in Soft case. 【Specification】 - Ovonic 2200mAh 11.1V Lipo Battery Dimension(±3mm): 75*33*25mm / 2.9x1.2x0.9inch (L*W*H), Approx Weight(±5g): 139g / 0.3lb 【Multiple Advantages】 - ISO international quality certification(safer), premium materials(LiCoO2), longer cycle life(350 times), longer running time(+12%), faster charging time(-6%), lighter weight( -5%), lower Resistance(-4%) 【Strong Compatibility】 - Compatible with Airplane Helicopter. For safety, please use the OVONIC dedicated charger to charge your battery. For more information, please search "OVONIC Mate 1" "OVONIC Mate 2" and "OVONIC X1" "OVONIC X1 Pro""OVONIC D15"on Amazon. 【Package】 - 2x OVONIC 3s Lipo battery, 2x Brand Stickers, User manual. Please read the user manual carefully before using, if you have any problems, contact us directly and we will reply you within 24 hours