HIGH-CAPACITY - Are you still worried that the camera drone is power off when you playing? JoyGeek 3.7v 400mAh lithium drone batteries charging kit succeed deal with this problem. The drone usb cable and battery provide sufficient energy for your drone. Bring you & your friends longer flight time and unlimited joy. SAFETY USE - Drone usb cable and battery have safety design, each charging interface has overcharge protection and short circuit protection, so that it can protect the battery from damage, therefore extending battery life. COMPATIBLE MODELS - JoyGeek usb cable and battery kit is suitable for JoyGeek Q3pro drone for adults. [ NOTE: Drone is not included. ] FULL JoyGeek WARRANTY - Provides 24-MONTH WARRANTY and 90-DAY no questions asked MONEY BACK guarantee. If you're not completely satisfied with your purchase just let us know, and you'll be provided a FULL refund or replacement! Enjoy this absolutely RISK FREE purchase today by clicking the yellow 'Add to Basket ' above.