SureFire Micro USB Lithium Ion Protected Battery 2.6Ah Black. 3 Certification and MSDS available. 2 year warranty. Integrated Micro-USB port makes charging convenient no charging cradle needed. Integrated protection circuit protects against thermal events. 8-10A discharge rate is optimal for powering high-output LED flashlights. Positive terminal also functions as a heatsink during the charge cycle. An integrated red LED indicates that the battery is taking a charge. An integrated green LED indicates that the battery is fully charged. 5 hour charge time to full charge. Specifications for SureFire Micro USB Lithium Ion Protected 18650 Battery: Manufacturer: SureFire Color: Black Condition: New Battery Type: 18650 Lithium Ion Battery Features of SureFire Micro USB Lithium Ion Protected 18650 Battery: 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 3500 mAh for extended battery runtime 8-10A discharge rate for dependability in high drain devices such as LED flashlights Package Contents: SureFire Micro USB Lithium Ion Protected 18650 Battery UN38.3 Certification and MSDS available. 2 year warranty. Integrated Micro-USB port makes charging convenient no charging cradle needed Integrated protection circuit protects against thermal events 8-10A discharge rate is optimal for powering high-output LED flashlights Positive terminal also functions as a heatsink during the charge cycle An integrated red LED indicates that the battery is taking a charge An integrated green LED indicates that the battery is fully charged 5 hour charge time to full charge UN38.3 Certification and MSDS available. 2 year warranty. Integrated Micro-USB port makes charging convenient no charging cradle needed Integrated protection circuit protects against thermal events 8-10A discharge rate is optimal for powering high-output LED flashlights Positive terminal also functions as a heatsink during the charge cycle An integrated red LED indicates that the battery is taking a charge An integrated green LED indicates that the battery is fully charged 5 hour charge time to full charge