With the Solar Panel, the internal rechargeable battery of your CS FREE can be charged purely with solar energy. You can also use it to power the CS FREE without plugging it into an electrical outlet so that you can charge and maintain your vehicle battery anywhere. It is perfectly tuned to the CS FREE. It supplies fast and reliable solar energy, so that you can charge your CS FREE anywhere independantly. It is made of extremely hard glass fiber material, can be connected within seconds and thus gives you absolute freedom from the mains power supply. Charge and maintain your vehicle battery or portable devices, such as smartphones, pads, and laptops, even when AC power is not available. The solar panel is equipped with efficient silicon cells and intelligent functions. The specially developed safety box provides for an exact dosage of the charging current and protects your battery against overvoltage. The solar panel is waterproof, weather-resistant and durableand thus the perfect o