2S200JST : 7.4 volt 200mAh rechargeable Li-PO battery for electric flight. Size: 1.4" long x 0.88" tall x 0.43" thick. Output rated up to 20C. Includes red JST connector and balance charging connector. Fits in a wide variety of electric flight models (helis, planes, quads, mini-drones etc.) X-ref part # 2LP352211.