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Note: If an unauthorized battery is installed, the following message will be displayed:
“The battery installed is not supported by this system and will not charge. Please replace the battery
with the correct Lenovo battery for this system.”
Read the following prerequisites before you replace the battery.
Prerequisites for the procedure
DANGER
If the rechargeable battery pack is incorrectly replaced, there is danger of an explosion. The battery
pack contains a small amount of harmful substances. To avoid possible injury:
• Replace only with a battery of the type recommended by Lenovo.
• Keep the battery pack away from re.
• 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, or subject to strong forces. Battery abuse or mishandling can
cause the battery to overheat, which can cause gasses or ame to “vent” from the battery
pack or coin cell.
To replace the battery, do the following:
1. Turn off the computer. Then disconnect the ac power adapter and all cables from the computer.
2. Close the computer display, and turn the computer over.
3. Unlock the battery latch by sliding it to the unlocked position 1 . Holding the latch in the unlocked
position, then remove the battery.
70 User Guide