SureFire Surefire Micro USB Lithium Ion Rechargeable Battery. 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. Note: The SF18350 is compatible with SureFire Dual Fuel single 123A-powered products. It is not compatible with non-Dual Fuel single 123A-powered products. Specifications for SureFire SF18350 Surefire Micro USB Lithium-Ion Rechargeable Battery: Manufacturer: SureFire Weight: 0.96 oz Condition: New Battery Type: Lithium Ion Features of SureFire SF18350 Surefire Micro USB Lithium-Ion Rechargeable Battery The best SF18350 rechargeable battery in the industry 3.7 volts / 1100 mAh to fuel your SureFire 3-volt Dual Fuel illumination tools MICRO-USB charging facilitates charging via a variety of power sources Package Contents: SureFire SF18350 Surefire Micro USB Lithium-Ion Rechargeable Battery SureFire SF18350: SF18350 Surefire Micro USB Lithium Ion Rechargeable Battery