ACOPower Plk 120W Portable Solar Panel Kit, Lightweight Briefcase with 20A Charge ControllerDescription The ACOPOWER 120W Monocrystalline Lightweight Portable Solar Panel Kit is lightweight, portable and comes with a pre installed charge controller. The included charge controller protects battery against unsafe electrical conditions and must be used to charge 12V batteries. To charge solar generators with a built in charge controller, simply use the solar panel connector cables provided and plug them into the cables that came with your power