Specifications:Battery Type:14500 batteryCapacity: 2500mAhVoltage: 3.7VCharge Time: about 6~8hoursRechargeable Times: about 500~700Material: Li-ion BatteryColor: YellowSize: Approx. 1.3x4.8cm\/0.5"x1.8"Quantity:4pcs Feature:1.High quality and durable2.Provides excellent continuous power sources to your device3.High energy density、 long life battery4.This battery has an extra long life for all your battery powered devicesPackage Includes:4 x 3.7V 2500mAh 14500 Li-ion Rechargeable Battery