A webbing loop on a dive light's battery is a simple yet effective solution for keeping your gear organized and tidy. The loop allows the battery to slide neatly over the waist strap of your harness, keeping it stable against your body and preventing it from dangling. This provides greater comfort and reduces drag in the water.

An added benefit is that you can run the long hose behind the battery and "park" it there. This keeps the hose neatly in place, well-protected, and free of kinks or loose loops. Furthermore, in a situation without air, the long hose unwinds instantly and smoothly, without other components getting in the way. In short: a webbing loop on your light's battery contributes to a streamlined setup, better hose management, and a higher degree of control underwater.