Venom Marine 50C 3S 2200mAh 11.1V LiPo Battery with EC3 Plug x2 Packs Engineered for Marine Applications, with "A" Grade Matched Cells 5C Fast Charge Capable: 5C (11A) C Rate and Maximum Continuous Discharge (Amps): 50C (110A) Plug Type: EC3 Proven US Support and Lifetime Battery Replacement Plan.