The DJI FPV Fly More Kit contains two DJI FPV Intelligent Flight Batteries and a DJI FPV Battery Charging Hub for extended flight time. The rated capacity for each battery is up to 44.4 Wh, supporting flight for approximately 20 minutes. The built-in intelligent battery management system monitors battery status in real-time for a more worry-free flight. Features: Save more with the Fly More Kit. Two Intelligent Flight Batteries for a longer flight. Use the charging hub to charge up to three batteries in sequence. All DJI brand products are non-returnable after any packaging has been opened. If a DJI product has an initial manufacturer defect, the item may be exchanged within 7 days of original purchase. However, if there is any noticeable damage to the product, we cannot accept the exchange or return. If 7 days has passed since purchase, the defect should be addressed through the manufacturer's warranty: https://www.dji.com/support/product We apologize, but there are no exceptions to these conditions for DJI products.