Hi
There are circuit boards available to do this sort of thing. A couple of examples in the links at the bottom.
I see two problems with doing this-
1: Being careful to
not over discharge the battery (applies to any battery system of course)
2: Actually maintaining the electrical connection to the battery.
Neither of these should stop anyone trying it.
One other possible issue, is that many pieces of astro equipment are made to be powered from car batteries. These are only nominally 12V and should be something more like 12.6V when fully charged. It is possible that the mount actually needs a bit than 12.0V to slew at high speed for example. This is something I intend to test with my scope (an LX90).
I have no idea how significant an issue this is.
An example of modifying the battery to use for anything you want-
https://www.instructables.com/Make-a...-multipurpose/
For curiosities sake I have being doing a little more reading, there is an adapter on Thingiverse for Ozito batteries.
https://www.thingiverse.com/thing:2966117
Philip
https://www.ebay.com.au/itm/22436754...frcectupt=true
https://www.jaycar.com.au/24v-to-12v...sort=relevance