Charged via UV light from the sun's rays, the External EX Solar Battery Pack boasts a 3,000 mAh or 10,000 mAh rechargeable lithium-ion battery and a 10-inch solar panel compatible with any trail camera featuring a 12-volt battery jack. Capable of delivering greater charging efficiency than most other solar pack options currently on the market, it can be repositioned to the angle most conducive to any location, striking the perfect balance of versatility, adaptability and user-friendliness. Simply set your trail cam, attach the included 6-foot insulated power cable, and forget it. Even in extreme weather, this rechargeable solar-powered power pack with an included USB charging cable virtually eliminates the need for wasteful use of disposable AA batteries.