Onyx 122.2V 4000mAh 6S 40C LiPo Battery: EC5 (ONXP40006S40)

This new battery from Onyx has a 40C discharge rate. This series of batteries provides exceptional punch for a great price. All batteries can be charged up to 3C. In addition, the 40C Onyx batteries have an LED display that indicates the filling status of the battery at the touch of a button.