TOMTOP Technology
Features:3.7V 500mAh lipo battery; enough capacity and safe to use.4 in 1 battery charger saves a lot of charging time.Over charge for protection for every charging port.Charging indicator tells the charging status of every pieces.A good replacement for you to enjoy more flying experience.Compatible with Wltoys F949 Aircraft Syma X5C X5SW X5SC X5HW X5HC RC quadcopter.