3S3300T : 11.1 volt 3300mAh rechargeable Li-POLY battery for RC electric motors. High output, high-capacity, rates to 35C continuous discharge; burst 70C. Includes Motor connector & white JST balance charging connector. Dimensions: 104mm x 42mm x 23mm (approx. 5" x 1.75" x 1"). Choose motor connector from menu (red T, EC3 blue, XT60 gold, EC5 big blue, PowerPole). Picture shows battery with red T Ultra connector. Re-charges with smart Li-PO chargers such as B3AC, YT-0006S, UP100AC, X4AC Pro, etc.