Corded cordless mower - I have a corded mower that is handy but obviously limited in mobility by the electric cord which you have to haul around the yard, and the cord creates drag pulling along the ground. So I built a lawn mower caddy that holds my EcoFlow battery station. The caddy is made from scrap wood to make the box. I attached Harbor Freight fixed casters to the bottom. I got 1/8 in. flat steel from Home Depot. Steel is expensive by the way ($26 for a 4 ft. section.) I had to bend the steel to make braces connecting the caddy to the mower. I can just run a short cord from the battery to the mower. Now my corded mower is cordless! There is added weight but it doesn’t feel like too much more to push.