Dang RedNeckGeek and Sadamo
Your bring back memories of things I used to work with and on,
glass jar wet cells series wired together to total 144 volts,
then several racks of those paralleled together to feed large ups's that were line interactive.
Shutting down one bank at a time going thru making and breaking all the connections on every individual cell cleaning and greasing.
Checking each cell with the hydrometer, topping off each with distilled water
I hadn't thought about those battery rooms in a long time.
Some of the cells where round but most of them where square glass boxes,
we would even put new lead plates and separator papers in them on some of the shutdown maintenance outages.
Nothing like that rubber apron, and even back then safety goggles,
removing plates and separator papers, rubber dividers and rebuilding the individual cells.
Had a lot of clothes that had numerous little holes all over them,and lots of little blisters at times.