Larson Electronics' Portable Battery Packs are powered with Li-Ion batteries and offer multiple charging capabilities. These units are designed for off-grid use in remote locations with solar panel compatibility. They are available in a 300 watt output, a 500 watt output and a 2,000 watt output. The units offer AC and PV charging options and can be charged by a wall charger, car charger or solar charger. A digital panel displays the status of the battery. The portable pack weighs 26.4 lbs.