Stealth Cam's FieldMAX External Lithium Rechargeable Battery easily attaches to any trail camera with a 12-volt external battery jack, ensuring it your set remains operational for extended stretches. Simply set your trail cam, attach the included power cable via the integrated locking thread, and forget it. For even more of a boost to your cam's battery life, daisy-chain the 5,000 and 10,000 mAh models together or create additional configurations with Stealth Cam's SOL-PAK Solar Battery Packs, using the included 4-foot insulated power cable (1 foot that's part of the battery itself, plus a 3-foot extension). Even in extreme weather, this rechargeable 5,000 mAh lithium-ion battery with an included USB charging cable virtually eliminates the need for repeated, wasteful use of disposable AA batteries. Rechargeable 5,000 mAh lithium-ion battery prolongs trail camera life.