These 3.7V 250mAh LiPo batteries are genuine UDI RC replacement batteries for your UDI Freedom U32 drone. They’ll allow extra flight time and increase performance due to their higher current output and power. Enjoy longer flying times by bringing along extra batteries. These batteries have quick charging times of 45-60 minutes and last for 7-9 minute flights. Direct replacement battery pack for UDI U32 Quadcopter Drone. DO NOT attempt to use these batteries with any other models or U32 models from other sellers as we cannot guarantee compatibility. DO NOT attempt to recharge batteries that are fully drained, have come into contact with water or have become damaged upon collision as this can result in overheating.