I know you have already answered another persons question about cp's
just shutting down but I was alos, wondering if it may be the internal
battery?

Assuming that your servers are not laptops, then this shouldn't make
the computer shut down.

The internal battery is really mostly used to keep time. You can find
out if your computer's internal battery is failing if the time always
resets when you boot it up.

Could you precise what "internal battery" do you mean?

Internal battery in non battery powered computers (iotw - non-laptop
type) is only used to keep your current BIOS setting (in CMOS memory).
Bad battery can only make your CMOS RAM to reset, then BIOS will
inform you about checksum problems with information stored in CMOS
memory - it's done after a POST (Power On Self-Test).

http://en.wikipedia.org/wiki/Nonvolatile_BIOS_memory