Nice day, so I got out 844 (made it last year)to try it out after my valve gear work I did to it a week or so ago. Ran real smooth for 1 1/2 hours on a 18v B&D battery.
Then I replaced it with my Challenger(made 2 years ago or so), both use the centipede tender. Stock car has the battery/electronics.Challenger ran great also, fun day!