Venom 20C 3S 2200mAh 11.1V LiPo Drone Battery for SenseFly x2 packs Engineered for Flight, with "A" Grade Matched Cells 5C Fast Charge Capable: 5C (11A) C Rate and Maximum Continuous Discharge (Amps): 20C (44A) Plug Type: senseFly MPX#1 Proven US Support and Lifetime Battery Replacement Plan.