Eagle Optical Product – Consider replacing Battery Pack Batteries in your failing LED Headlight. For a fraction of the cost of a replacing your existing unit it can perform like new. A new internal battery is also very cost effective. Depending on the model, restoring is usually complete in a day or two. We keep a fresh supply of the most common batteries on hand. If you start to notice shorter run times, your battery cuts out, or needs frequent recharging, your cell is probably on its last leg. Consider replacing your Battery Pack Batteries if you notice changes in the way your LED performs. Don’t wait for your LED to quit suddenly.