Features: 1.Multiple Protection: Li ion rechargeable battery provides multiple protection, including short circuit, overcharge and over current protection. 2.Stable Power Supply: The rechargeable battery can provide stable power supply for your device and effectively prevent the device from damage. 3.Applications: 3.7V battery is the power source for portable electronic devices, such as LED flashlight, headlight, doorbell, portable devices, toys, remote control car, camera battery, etc. 4.5000mAh: The individual capacity of 3.7V 26650 rechargeable battery is 5000mAh, which is large capacity and suitable for outdoor activities such as camping, fishing and hiking. 5.Easy to Install: 26650 rechargeable battery is small, light weight, no memory effect, easy to install and easy to carry. specification:Item Type: 3.7V 26650 Lithium Battery Material: Lithium Polymer Product : 18650 Nominal Voltage: 3.7V (4.2V After Full Charge, 2.75V Discharge Cut off Voltage) Maximum Continuous Discharge Current: 20A (4C) Internal Resistance: Measured 15m Battery Type: 5000mAh Lithium Ion Battery (Pure Battery Shipping) PackageList:2 x Battery NotePlease confirm that the battery size and battery type are the same before purchasing