Dell Inspiron 15 (3542, Early 2014) - Manual (Page 14)

Replacing the Battery
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before Working Inside Your Computer . After working inside your
computer, follow the instructions in After Working Inside Your
Computer . For more safety best practices, see the Regulatory
Compliance home page at dell.com/regulatory_compliance.
Procedure
1 Slide the tabs on the battery into the slots on the battery bay and snap
the battery into place.
NOTE: Make sure the battery-release latches are secured.
2 Turn the computer over and open the display as far as possible.
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