Lenovo ThinkPad X250 User Manual page 140

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DANGER
If the rechargeable battery is incorrectly replaced, there is danger of an explosion. The battery
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 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, or 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.
To replace the removable battery, do the following:
Important: Before you replace the removable battery, ensure that the built-in battery has enough remaining
power or the computer is connected to ac power. Otherwise, the computer might shut down during the
battery replacement.
1. Disconnect the ac power adapter from the computer. Close the computer display, and turn the
computer over.
2. Slide the battery latch
unlocked position, and then remove the battery pack
124
User Guide
1
to the unlocked position.Then unlock the battery latch
3
.
2
and hold it in the

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