Coin-cell battery

Prerequisite

Before you start, read Important safety information and print the following instructions.

DANGER

If the coin-cell battery is incorrectly replaced, there is danger of an explosion. The coin-cell battery contains a small amount of harmful substance. To avoid possible injury:

Replace only with a battery of the type recommended by Lenovo.
Keep the battery away from fire.
Do not expose it to excessive heat.
Do not expose it to water or rain.
Do not short-circuit it.
Do not drop, crush, puncture the battery, or make it subject to strong forces. Battery abuse or mishandling can cause the battery to overheat, which can cause gasses or flame to "vent" from the battery or coin-cell battery.

Note: To dispose of the coin-cell battery, refer to “Lithium coin-cell battery notice” in the Safety and Warranty Guide.

Your computer has a special type of memory that maintains the date, time, and settings for built-in features, such as parallel connector assignments (configurations). A coin-cell battery keeps this information active when you turn off the computer.

The coin-cell battery normally requires no charging or maintenance throughout its life; however, no coin-cell battery lasts forever. If the coin-cell battery fails, the date and time information is lost. An error message is displayed when you turn on the computer.

Replacement procedure

Remove the computer cover. See Computer cover.
Remove the bottom cover. See Bottom cover.
Remove the storage drive. See Storage drive
.
Remove the system fan. See System fan.
Press the metallic tab to disengage the latch.
Remove the coin-cell battery.
Install the coin-cell battery.
Secure the coin-cell battery with the latch.
Reinstall all removed parts. Then, reconnect all disconnected cables to the computer and reconnect the power cord to the electrical outlet.