Ultrafire BRC 4200mAh 18650 Rechargeable Battery Eco-Friendly Versatile Battery

The Ultrafire BRC is a 4200mAh 3.7V Li-ion rechargeable 18650 battery. It supports up to 500 recharge cycles and can be fully charged in 2-4 hours using a compatible Li-ion charger. The battery measures approximately 65mm in length and 18mm in diameter, weighing 48 grams. Its operating temperature range is -20°C to 60°C for discharge and 0°C to 45°C for charge.

Technical Parameters

• Battery Type: 18650 Lithium-ion (Li-ion)
• Nominal Capacity: 4200mAh
• Nominal Voltage: 3.7V
• Recharge Cycles: Up to 500 times
• Optimal Charge Time: 2-4 hours (using a compatible Li-ion charger)
• Dimensions: Approx. 65mm (Length) x 18mm (Diameter)
• Weight: Approx. 48 grams per battery
• Operating Temperature: Discharge: -20°C to 60°C; Charge: 0°C to 45°C
• Chemistry: Li-ion