Ultrafire BRC 4000mAh 3.7V Li-ion Rechargeable Batteries High Capacity Quick Recharge for Photography Hiking

The Ultrafire Protected BRC 18650 Li-ion rechargeable battery provides 4000mAh capacity at 3.7V. It features a built-in protection circuit against overcharging, discharging, and short circuits. The battery requires 2-4 hours for a full charge and is compatible with many devices, including flashlights, cameras, electric vehicles, and personal vaporizers.

Technical Parameters

• Battery Type: 18650 Lithium-ion
• Nominal Voltage: 3.7V
• Capacity: 4000mAh
• Recharge Time: 2-4 hours
• Recharge Cycles: Up to 500 times
• Protection: Overcharge, over-discharge, short circuit
• Dimensions: 18.5mm diameter x 65mm length