The Bushnell Solar Panel accessory (#119986) is designed to function as a supplemental source of power for all current models of Trophy Cam HD Aggressor, Trophy Cam HD Aggressor Wireless, Impulse, Core, CelluCore, and Prime series cameras. With the Solar Panel mounted near your camera and connected to its external power input jack, you will find that your camera’s batteries last much longer before they need to be replaced. The solar panel has an internal lithium ion power core, which is continuously charged by the solar cells when they are exposed to the sun. Once connected, the camera will draw its power from the solar panel’s charged lithium battery for as long as possible, switching to its internal batteries only when the Solar Panel’s battery’s charge level is too low. As a result, the camera’s batteries will have significantly longer life.