Surefire Micro-USB Rechargeable 18650 Protected Lithium Ion Battery

The Surefire Lithium 18650 battery allows for convenient charging using any power source such as a USB wall charger, computer/laptop, power bank, or automotive USB port using the included MICRO-USB to USB cable. The external 18650 compatible CC-CV cradle charger (not included) can be used to charge the battery; possibly at a faster rate if so equipped.

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

Specifications:

• Type: Protected 18650
• Voltage: 3.6 V
• Certification: CE, PSE, UN38.3
• Charge End Voltage: 4.20 V
• Chemistry: Lithium-ion
• Dimensions: 69.4 x 18.6 mm
• Discharge End Voltage: 2.50 V
• Discharge Rate: 8-10 A
• Energy: 12.6 Wh
• Lithium Content: 10.5 g
• Operating Temp Range (Charging): 0-45º C, 65%±25%RH
• Operating Temp Range (Discharging): -20º C-+60º C, 65%±25%RH
• Rated Capacity: 3.5 Ah
• Storage Temp Rate: 0-35º 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)
• Standard Charge Rate: Charging through USB can take over 8 hours if fully depleted. Approximately 5 hours of flashlight cutoff