This L-3 AC/DC Power Adapter is designed for use with L-3's X100xp and X200xp thermal imagers. This power converter allows you to run these monoculars from any 120 VAC power source. Simply plug the wall-wart into any available AC power outlet, and connect the wire lead to the monocular's power outlet. The AC/DC power adapter will automatically disable the monocular's batteries, causing the device to run from the power supply. The power adapter will not recharge the monocular's batteries. When it is connected, the battery gauge will indicate "empty".