Replacing the old or damaged Li-ion battery is not only improves the performance of the laptop, but also keeps the battery in a healthy state for safety, avoiding the risk of thermal runaway.

== Step descriptions: ==
# ***Step 1:*** Check the appearance of the laptop before replacement
# ***Step 2:*** Check the status of the battery before replacement (optional)
# ***Step 3~11:*** Teardown the laptop until the Li-ion battery appears
# ***Step 12~13:*** Remove the old or damaged Li-ion battery
# ***Step 14~15:*** Replace the old double-sided tapes (optional)
# ***Step 16:*** Install new Li-ion battery
# ***Step 17~18:*** Stick back the plastic sheet and double-sided tape
# ***Step 19:*** Spacing fixing (optional)
# ***Step 20:*** Check the laptop after replacing the battery
# ***Step 21:*** Check the status of the battery after replacement (optional)
== NOTE: ==
# There is a "destructive" teardown that cannot be restored to its original state in step 9.
# Steps 2 and 21 can be skipped when users don't want to know the status of the battery or don't have the software.
# Steps 14~15 and 19 can be skipped when old double-sided tapes still provide sufficient stickiness.

Conclusie