On 7/24/20 1:37 AM, Gary Weber wrote:
They didn't. That tiny little battery pack with the external charging
jack was an "aftermarket" thing. I think it was installed by a
company that did VAR resales of 8300s into industrial label printing
applications.
Yeah this particular 8300 was part of a gas chromatography instrument.
Someone on facebook actually knew about it when I posted a couple pics
of the weird unknown rom. Now no longer unknown.
https://photos.app.goo.gl/1ZUbWJcqSHpdBFL66
I imagine this must have been pretty much meant to act like a UPS not a
battery for portable operation.
The capacity or run-time wouldn't be as important as the fact that it's
always charging and always connected regardless if the wall power is on
or off.
If I install a normal battery pack with good batteries (robbed from a
8201a), and plug in a wall power supply into the normal power jack on
the back of the computer, turn the machine on, and then unplug the wall
wart from the wall (the barrel plug stays in the computer, simulating a
power outtage), the computer dies. The normal battery pack and the
normal power jack do not act as a UPS.
If I install the rechargeable pack, and plug the wall power into the
battery pack instead of the computer, turn the machine on, and pull the
wall wart out of the wall, the machine keeps running. The rechargeable
pack and it's own power jack DO act as a UPS.
--
bkw
