Noiposi 2pcs 7.4V 2100mAh 25C Li-po Battery with Banana Connector for Syma X8C X8W X8HC X8HW RC Quadcopter High capacity battery:7.4V 2100mah 25c lipo battery will bring you more power and long flying time product size(L*W*H):85*34*19mm/3.35*1.34*0.74inch Suitable for: Syma X8C X8W X8G X8HC X8HW RC Quadcopter Plug type:banana plug(round plug) Your quadcopter with 2100mah lipo battery which is customized by our company will fly for a longer time