Installing The 3-Cell Battery - Dell Inspiron 15 3521 Service Manual

NOTE: Before removing the 3-cell battery, disconnect and remove the hard-drive flexible flat cable from its connector
on the system board to avoid tugging of the 3-cell battery on the hard-drive flexible flat cable.
3. Disconnect and remove the battery cable from the 3-cell battery.

Installing the 3-cell battery

Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following image indicates the location of the 3-cell battery and provides a visual representation of the installation procedure.
Steps
1. Connect the battery cable to the 3-cell battery.
2. Place the 3-cell battery along with the battery cable on the palm-rest and keyboard assembly.
NOTE: Connect the hard drive flexible flat cable to its connector on the system board after placing the 3-cell battery,
in its slot on the palm-rest and keyboard assembly, to avoid tugging of the 3-cell battery on the hard drive flexible flat
cable.
3. Align the screw holes on the 3-cell battery to the screw holes on the palm-rest and keyboard assembly.
4. Replace the three screws (M2x3) to secure the 3-cell battery to the palm-rest and keyboard assembly.
Next steps
1. Install the base cover.
2. Install the secure digital
3. Follow the procedure in
20 Removing and installing components
card.
After working inside your computer.