Battery on concrete floor or wood?
No, stayed in the car...I find solar chargers work the best. Even the battery tenders kill a battery over time for some reason. I will have to mount up more solar ones.
I will say this, the new 400 stroker sounds healthy, even with the 1250 on it, she might make enough steam to use it. I typically run a 1050 on an engine of this size, but it was not in the budget this year. So I had a 1250 Thumper just sitting here, I figured it was time to try it as I have nothing else at the moment.