1020 Built-In Battery; 1030 Memory Module And Memory Module Bracket - Lenovo 21JK Hardware Maintenance Manual

1020 Built-in battery

DANGER
Use only the Lenovo authorized battery specified for the computer. Any other battery could ignite or
explode.
Important notice for replacing a battery
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.
The Vantage app provides an automatic battery diagnostic test that determines if the built-in battery is
defective. A built-in battery FRU should not be replaced unless this diagnostic test shows that the battery is
defective. The only exception to this is if the built-in battery is physically damaged or a customer is reporting
a possible safety issue.
If the Vantage app is not installed on the computer, the customer should download and install the program to
diagnose the built-in battery, before getting a non-physically damaged built-in battery replaced. Note that the
replacement of a physically damaged built-in battery is not covered by the warranty.
For access, remove this FRU:
• "1010 Base cover assembly" on page 62
Removal steps of the built-in battery
Step Screw (quantity)
2
M2 × L5.0 mm, flat-head, nylon-coated (3)
When installing:
• Ensure that the connector is attached firmly.
• Ensure that the base cover assembly is secured in place. Otherwise, the battery connection may fail.

1030 Memory module and memory module bracket

For access, remove this FRU:
Color Torque
Black 0.181 Nm
(1.85 kgf-cm)
.
Chapter 8 Removing or replacing a FRU
65