man all great advice thank you all so much.

There are a couple small deposits of battery acid on top, of the maybe three globs each the size of a quarter, the sides are very clean...

Yes the charger has an egg timer like dial any recommendations for a brainless (brand) charger for the work hog batteries? providing they will come to life of course.

I have 220v coming into shop end of next week. Water/liquid level is fine in all cells.

Would it make good sense to have a tech come check it out before plugging it in to the new 220 circuit on the old holbart or just give it a try for how many hours?

Thanks again really appreciate it.