Chapter 9. Replacing Devices; Static Electricity Prevention; Replacing The Removable Battery - Lenovo 20J8 User Manual

Chapter 9. Replacing devices

This chapter provides instructions on how to install or replace hardware for your computer.

Static electricity prevention

Static electricity, although harmless to you, can seriously damage computer components and options.
Improper handling of static-sensitive parts can cause damage to the part. When you unpack an option or a
Customer Replaceable Unit (CRU), do not open the static-protective package until the instructions direct you
to install the part.
When you handle options or CRUs, or perform any work inside the computer, take the following precautions
to avoid static-electricity damage:
• Limit your movement. Movement can cause static electricity to build up around you.
• Always handle components carefully. Handle adapters, memory modules, and other circuit boards by the
edges. Never touch exposed circuitry.
• Prevent others from touching the components.
• Before you install a static-sensitive option or CRU, do either of the following to reduce static electricity in
the package and your body:
– Touch the static-protective package that contains the part to a metal expansion-slot cover for at least
two seconds.
– Touch the static-protective package that contains the part to other unpainted metal surface on the
computer for at least two seconds.
• When possible, remove the static-sensitive part from the static-protective package and install the part
without setting it down. When this is not possible, place the static-protective package on a smooth, level
surface and place the part on the package.
• Do not place the part on the computer cover or other metal surface.

Replacing the removable battery

Before you start, read "Important safety information" on page v and print the following instructions.
This system supports only batteries specially designed for this specific system and manufactured by Lenovo
or an authorized builder. The system does not support unauthorized batteries or batteries designed for other
systems. If an unauthorized battery or a battery designed for another system is installed, the system does not
charge and the following message is displayed:
"The battery installed is not supported by this system and will not charge. Replace the battery with the
correct Lenovo battery for this system."
Attention: Lenovo has no responsibility for the performance or safety of unauthorized batteries, and
provides no warranties for failures or damage arising out of their use.
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