Fytoo 3.7V 800mah Li-Po Battery for YD XT-1 X-PACK 18 X-PACK PLUS Folding Aerial Drone Smart Follow RC Quadcopter Battery Grey Product Information: Battery voltage: 3.7V Battery configuration: 1S Battery capacity: 800mAh Discharge rate: 25C Battery weight: 23g/1PCS Battery Size: L2.91(in) X W0.96(in) X Thick0.49(in) Battery Chemistry: Lithium Polymer Features: Guarantee more flight time, high drain lithium-polymer rechargable battery. Battery connector is exactly same shape with the original battery ,no loose problems Cool down the battery before your next flight or recharge；Light weight and easy to carry, put in your pocket when flying drone outdoors. Package Content: 3pcs Note: Any questions, please no hesitation to contact with me , we will very pleasure to service for you.