How to stop turning off sequence when power manager says that battery is too low and want to power down?-Collection of common programming errors
As far as i know, the computer can be set to either Shutdown, or Hibernate (free space/swap space providing).
If Hibernation is something you consider an alternative, then you should be able to change it in the Power Manager.
If not, then the system is trying to protect it’s hard disks/memory from corruption, and it would be very difficult to disable, and is something i can’t help with.