I have a notebook battery at home that became useless when my old notebook died (RIP). Can I use the battery in some way to implement something like a no-break (also known as UPS (Uninterruptible power supply)) for my father's desktop?
I know that I could have a really low break-energy safe time, but it would be really useful in the case that my father doesn't have a no-break/flywheel backup and I have a useless battery.
The main idea is to give some useful afterlife to this part of my old notebook. Is it possible to aggregate some control circuit with a notebook battery to the desktop's SMPS (Switched-mode power supply)?