21700 OEM Replacement battery will work with our Hydra 1500, NR-1500, and NR-1500Z. Built in USB C charge port.

Replacement, or spare battery for Hydra 2500\3500. This battery will also work with any of our older models that used 3×18650 batteries wrapped to a single cell.

Replacement charger for Hydra 5000, Solar Flare Mini, KR-S02 Strobe or any of our older lights that used 4×18650’s wrapped to a single cell.