Nitecore NL2150HPI 5000mAh Rechargeable Battery for i Series Flashlights (P20i, P20iX, SRT6i, etc) Harpoon Point this knife is built for

this knife is built for those who demand dependable performance from their EDC gear

Fits flashlights with diameter of 18mm-28mm

emitting a powerful 1600-lumen beam that reaches up to 170 yards

/Diameter at 3mm: 4

Shock-absorbing black Santoprene handle for a secure grip

Nitecore NL2150HPI 5000mAh Rechargeable Battery for i Series Flashlights (P20i, P20iX, SRT6i, etc) Harpoon Point this knife is built forThe next generation 21700 customized rechargeable battery from NITECORE, the NL2150HPi has an amazing 5000mAh capacity. This powerful battery has improved performance, and superior energy density compared to previous 18650 batteries. Specifically designed for the i4000R, the "i" series batteries can work with any other NITECORE flashlight that accepts 21700 batteries. An extra 21700 is a great backup battery to have on hand, as more electronic