This 23-Pocket DeWalt Branded Tool Backpack by Custom LeatherCraft has USB charging capabilities, allowing you to use your DeWalt 20V MAX* Lithium Ion battery and the internal custom design battery dock as a USB charging source. The dock simultaneously charges two devices via USB ports delivering a maximum of 2 Amps shared output. Designed with three internal charging wall pockets to fit a tablet, phone and/or camera, large pads on the back for extra comfort making carrying heavier loads more comfortable on stress areas of the back, padded web carrying handles and adjustable shoulder straps that make carrying more comfortable plus adding the convenience of hand on each end for quick "from stow to go", and base pad feet that help reduce wear and abrasion. The charging dock offers low battery cut-off protection that monitor battery voltage to avoid battery charge over-depletion. A vertical tool wall helps you organize a variety of extended screwdrivers and hand tools. There are 20 multi-use pockets inside and three outside to help organize a wide variety of hand tools.