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.

OEM replacement\spare battery that will fit both the Hydra 4000, and Hydra 6000 lights. Includes caps.

Replacement, or spare battery for Hydra 5000, and KR-S02 strobe. This battery will also work with any of our older models that used 4×18650 batteries wrapped to a single cell.