UltroFite Rechargeable 3.7V 18650 Li-ion "5800mAh" Battery - Red
The 18650 rechargeable lithium battery is equipped with a protection circuit board (PCB) on the negative pole. The PCB can protect the battery from overcharge over-discharging overload and short circuit which can make the battery safer and longer lifespan. The battery is environment friendly and perfect for super bright flashlight and other devices.