3LP733523: 11.1 volt 1350mAh 25C rechargeable Li-PO battery for RC electric flight. Small, compact, and powerful ! Dimensions: 2.8" long x 1.3" across x 0.9" thick. Weighs only 3.8 ounces. Includes balance charging connector & blue EC3 motor connector. Re-charges best with smart Li-PO chargers such as B3AC, YT-0006S, UP100AC.