If you use a heavy duty cable, you have a 20 square radius and it’s as efficient as jumper cables when used vehicle to CBM, it’s only less efficient vehicle to vehicle. Attach it to a 1 tile foldable cart and you can break even on charge with Close Quarters Battle, or any other 1 PU/turn CBM, and move it between z levels. The biggest benefit IMO is near permanent Internal Climate Control for ice labs or hot mine tiles. Using this I need WAYY less Power Storage CBMs to support my adventuring addiction early-mid game.
Hmmm… I wonder if you can charge off of multiple vehicles at once. If so, imma load up a cart with 1 tile batteries on wheels and see how stupid I can make this lol. Here’s hoping for 17+ so I can use Hydraulic Muscles indefinitely 