Charge. Win. Repeat. The Surefire SF18650B provides easily replaceable, easily rechargeable power for your compatible Surefire flashlight. Attached Micro-USB port for easy charging in all sorts of devices and charging systems. Lithium Ion-protected 18650 3.6V / 3500 mAh delivers extended runtime Micro-USB charging port is compatible with any USB wall charger, computer/laptop, power bank, automobile and more LED power status indicators 8-10A discharge rate for dependability in high drain devices such as LED flashlights Compatible with SureFire products such as: FURY-DFT, FURY-IB-DF, P1R-A-BK (discontinued), P1R-B-BK, M600DF-BK, M600DF-TN, M640DF-BK-PRO, and M640DF-TN-PRO
