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SureFire Lithium-ion 3.5Ah Micro-USB Rechargeable Battery. Charge. Win. Repeat. The SureFire SF18650B is a Lithium Ion-protected 18650 battery with MICRO-USB charge capability. This allows the user to conveniently charge the battery using any USB power source such as a USB wall charger, computer/laptop, power bank, or automotive USB port using the included MICRO-USB to USB cable. Additionally, an external 18650 compatible CC-CV cradle charger (not included) can be used to charge the battery; possibly at a faster rate if so equipped. The SF18650B is compatible with the following SureFire products: FURY-DFT, FURY-IB-DF, EDC2-DFT, M600DF, M640DF, M640DFT and P1R series.

SureFire Lithium-ion 3.5Ah Micro-USB Rechargeable Battery Features:

• High-performance 3.6V 18650 lithium ion rechargeable battery with MICRO-USB port for ease of charging ?? no charging cradle needed
• When plugged into a power source, two LED indicators display the current charge state: Red for charging and Green for fully charged
• 3,500 mAh for extended battery runtime
• 8-10A discharge rate for dependability in high drain devices such as LED flashlights

SureFire Lithium-ion 3.5Ah Micro-USB Rechargeable Battery Specs:

• TYPE: Protected 18650
• VOLTAGE: 3.6V
• CERTIFICATION: CE, PSE, UN38.3
• CHARGE END VOLTAGE: 4.2V
• CHEMISTRY: Lithium-ion
• DIMENSIONS: 69.4 x 18.6 mm
• DISCHARGE END VOLTAGE: 2.50V
• DISCHARGE RATE: 8-10A
• ENERGY: 12.6 Wh
• LITHIUM CONTENT: 10.5 g
• OPERATING TEMP RANGE (CHARGING): 0-45° C, 65%±25%RH
• OPERATING TEMP RANGE (DISCHARGING): -20° C-+60° C, 65%±25%RH
• RATED CAPACITY: 3.5 Ah
• STANDARD CHARGE RATE: Charging through USB can take over 8 hours if fully depleted. Approximately 5 hours of flashlight cutoff
• STORAGE TEMP RANGE: 0-35° C 60±25%RH
• USB CURRENT: 600 mA ± 100 mA
• USB CHARGE VOLTAGE: 5.0 V ± 0.2 V
• WEIGHT: 1.7 oz (49 g)