laptop shuts off with new battery
I think you may have a system with a buggy or out of spec ACPI firmware. Ideally you should be able to disable ACPI in the BIOS as shown below:
Another option would be to use the acpi=off kernel parameter. You can test this by editing the vmlinuz line at boot and adding the acpi=off parameter. to make it permanent, edit /etc/default/grub with your favorite text editor; find the line:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
and add the acpi=off parameter to the space separated list of parameters between the quotes.