With a 288 watt-hour (Wh) capacity and a 300W max output, the 300 Plus is now the smallest member of its series of Jackery portable power stations. Nevertheless, it boasts the same up-to-date LFP batteries of its larger siblings. It is also now touted as backpack-scale off-the-grid power, with a total weight of under 15 pounds even with its new foldable solar panels.