JETBeam HL51 21700 5100mAh 3.6V Unprotected Lithium Ion Button Top Battery Polypropylene Height – 38mm (1

Height – 38mm (1

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Max Intensity: 13800cd

JETBeam HL51 21700 5100mAh 3.6V Unprotected Lithium Ion Button Top Battery Polypropylene Height – 38mm (1Massive 5100mAh Capacity for High Lumen Flashlights The HL51 is a 21700 Li ion battery from JETBeam featuring a truly massive 5100mAh capacity. Made for power hungry flashlights like the 3M Guardian and BR10 Bike light, this 21700 battery is energy packed and the best choice to extend your flashlight runtimes. Utilizing Li ion chemistry, the HL51 can be recharged hundreds of times and is an Eco conscious power source that saves you money over time.