Replacing The Lithium Battery - DEC Digital PC 3500 System Reference Manual

Replacing the Lithium Battery

Your computer comes with a Lithium 3 V dc coin-style battery. If your computer ever
fails to retain the correct date, time, or configuration settings when it is turned on, you
need to replace the battery.
To replace the Lithium battery, perform the following:
1. Record your computer's configuration settings using the BIOS Setup utility.
2. Turn off your computer and monitor.
3. Disconnect all external devices, ac power, and monitor power.
4. Remove the outside cover.
5. Lift the retaining clip slightly and push on the battery from the side to slide it
out.
WARNING
battery is incorrectly replaced. To prevent damage to your
computer, be sure the + side faces up when installing a new
battery. Also, be sure you replace the battery with either a
DIGITAL (P/N 12-41474-05), Toshiba (P/N CR2032), or
equivalent 3 V dc lithium battery.
Depending on your locality, your computer's battery might be
considered hazardous waste. Make sure you follow any state or
local statute to properly dispose of the old battery.
6. Install the new battery.
7. When installing the new battery, make sure the "+" side faces up.
8. Replace the outside cover.
9. Connect all external devices and restore power.
10. Run the BIOS Setup utility to reconfigure your computer using the recorded
configuration settings from step 1.
Refer to Chapter 2, "Using the BIOS Setup Utility."
: There is a danger of battery explosion if a lithium
Inside Your Computer
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