HP 8200 Computer is Slow due to the BIOS CMOS Battery on the HP 8200 Computer's Motherboard Has Failed.

HP 8200 Host Computer is Slow, due to Failure of the BIOS CMOS System Battery. May We Replace the Battery in the Field? See Long Description The computer is slow and may not respond . The system scanned great but I was having issues when the unit booted, shutdown and also when opening the message windows after a selection to view all levels of messages. We swapped the network hub and card, replaced the hard drives, reloaded software, and none of this helped. We finally determined that the HP 8200 computer's battery that powers the BIOS CMOS had failed, causing the system to revert to default BIOS settings, causing the slowdown effect. The battery has run down, it is exhausted. These batteries have an expected life of between 3 and 7 years. This battery is on the HP 8200's motherboard. May we replace this battery with one obtained locally? PQR 13074291