Ever wonder whats in a replica battery?

The one on my hoist is a medium to small unit- 1000VA with 2 12v batteries.

Funny, because the hydraulic pump motor I needed to power was 24v, and I was trying to figure a way to get the UPS to charge the batteries at 12 (which I assumed) and then rig up a switch to change the connection from parallel to series, etc, and after I opened it up- wabam, it was 24v, so no further effort required other than making longer wires.