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Power your NITECORE TM03 Tiny Monster LED Flashlight with this 18650 Rechargeable Lithium-Ion Battery, which is purpose-built specifically for that light. It features 3.6V of output power, a 3100mAh capacity, and an 11.2Wh rating, giving the light the juice it needs to produce a bright 2800-lumen beam. The battery serves as a spare or replacement for the identical one included with the TM03. It's compatible with almost all smart chargers for 18650 batteries on the market.