Lenovo ThinkPad S540 Hardware Maintenance Manual page 69

The Lenovo Solution Center program provides an automatic battery diagnostic test that determines if the
battery pack is defective. A battery pack FRU should not be replaced unless this diagnostic test shows
that the battery is defective. The only exception to this is if the battery pack is physically damaged or a
customer is reporting a possible safety issue.
If the Lenovo Solution Center program is not installed on the computer, the customer should download and
install the program to diagnose the battery pack, before getting a non-physically damaged battery pack
replaced. Note that the replacement of a physically damaged battery pack is not covered by the warranty.
Removal steps of the battery pack
DANGER
Use only the authorized battery specified for your computer. Any other battery could ignite or
explode.
Step Screw (quantity)
2
M2 × 5 mm, small-head, nylon-coated (2)
1
Torque
Color
Silver 0.181 Nm
(1.85 kgf-cm)
.
Chapter 9 Removing or replacing a FRU
63