7.4V Tenergy 2S 900mAh 10C High Rate LIPO Battery Pack for Blade CX 10C continuous discharge rate of 10 amps This is the perfect battery for your lovely E-Flite Blade CX Helicopter. Maximum charge rate 12 Amps for burst. Dimensions: 65mm x 25mm x 12mm It will fit in the battery tray perfectly, more capacity more flying time, more fun!