Manual. Like the batteries that I plan on buying when the new kits are up for sale. I was just about to post looking for a pass-through that might work with my highly anticipated new Sidesho. Can't wait to ditch my L88b... When can we expect to see the pass-through? I know you have new kits, cart plugs, and smaller L88b batteries coming in soon. How long does it take to go from testing to production to retail?