Item: BT2.0 550mAh 1S Battery Capacity: 550mAh Rate: 40C/80C Voltage: 3.8V Battery type: LiHv(3.8~4.35V) Dimension: 69.5*16.2*6.5mm Connector: BT2.0 connector Weight: 13.99g/pc Package 4 * BT2.0 550mAh 1S Battery 【Higher Capacity】BT2.0 550mAh 1S battery is capable of delivering a discharge rate of 40C (continuous) and 80C (burst). Greatly improved battery discharge performance 【Powerful Performance】BT2.0 550mAh 1S Battery has stable current&voltage output and high efficiency. Larger capacity ensures strong power and increases the flight time for the whoop drones 【Suitable Drone】BT2.0 550mAh 1S lipo battery weighs only 14g/pc with a size of 69.5*1 6.2*6.5mm, it is perfectly suitable for 1S whoop drones that use the BT2.0 450mAh battery like the Meteor75 Pro, Meteor75 Pro HD, Cetus Pro, Cetus X FPV Drone. It can provide stable and consistent power, which achieved dynamic balance and more flight time 【BT2.0 Connector】Compared with the PH2.0 crimped pins, the BT2.0 connector is more durable and can discharge more currents in the same capacity and provide far more power 【Upgrade】By solving the problem of voltage sag, the discharge of the 550mAh 1S BT2.0 lipo becomes more efficient. Pilots can enjoy more flight time without the disturbance of low voltage warnings