Nitecore NL2150HPI 5000mAh Rechargeable Battery for i Series Flashlights (P20i, P20iX, SRT6i, etc) Harpoon Point /Diameter at 3mm: 4

/Diameter at 3mm: 4

Yes — the Kansept Pretatout K1032D3 pairs a hard-working 3

while the stonewashed finish hides scratches from everyday work

Fits flashlights with diameter of 18mm-28mm

and won’t require recharging throughout 2 months of minimum brightness

Nitecore NL2150HPI 5000mAh Rechargeable Battery for i Series Flashlights (P20i, P20iX, SRT6i, etc) Harpoon Point /Diameter at 3mm: 4The 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