A Simple concept - a battery in a bag - but this bag contains a lightweight, Lithium 12 amp hour battery in the sturdy PowerPort bag. Lithium batteries are noted for their high performance, light weight and superior performance in cold temperatures. The bag is a padded heavy duty nylon case with sturdy buckle down lid with extra room inside the lid for accessories, two detachable accessory pockets can hold connectors, cords, chargers, etc.  The wide, nylon webbing adjustable strap handle to make it easy to carry around. It’s weatherproof and tough and ready to power your equipment where ever you are. No charger provided. We recommend using a 1 amp or 3 amp Lithium automatic charger to keep this battery in top shape.