Grid Discharger thrown together...
Two 60w bulbs in series. Charger tapped for the 12v to keep the fans going for good measures.
It discharged from 155 to around 142 over about 3 hours last night, so figured it was safe to go to bed and check it in the morning. Morning came (7 hours later) and no bulbs on when I went to the garage. Checked the voltage, 5v! Wow... I was hoping to swap those bulbs out to something smaller at 120-90 volt range, but guess I missed my chance. Charging now... well see what it does.
Also, I bought a postage scale to start taking accurate measurements of weight on things I remove/swap. I'll get a link going to the spread sheet in the first post.