Keep your Stealth CamA(R) Revolver trail cams running longer with the FieldMAX Lithium Rechargeable Cartridge. This 12V/5,400mAh internal power pack is built to handle harsh conditions and eliminates the hassle of constant AA battery swaps-perfect for deep woods and year-round deployment. High-capacity 12V/5,400mAh lithium-ion battery for extended camera runtime Rechargeable internal cartridge-no more wasting money on disposable AAs Built to handle extreme temps and rugged outdoor conditions Ideal for shaded, low-sunlight locations where solar panels fall short Compatible only with Stealth Cam Revolver, Revolver Pro, 2.0, and Pro 2.0 models Includes USB charging cable for quick, easy recharges