"DEJ57" wrote in message
...
You could attach a 4.5 volt alkaline battery to take the place of
the dead systemboard battery. Compaq sold these batteries, which included
the battery, a 3-wire connector and velcro strip to attach the battery to
the systemboard.
HH

I purchased a few of these over the years and they ran me $25 total
each....

Dale

There was also a 4 AA battery pack (with the 3-wire connector), available in
most electronics stores, for $3.95 (less AA cells). Then when the batteries
died, you just replaced the AA cells.