Installing The 3-Cell Battery - Dell Latitude 7420 Service Manual

About this task
The following images indicate the location of the battery and provide a visual representation of the removal procedure.
Steps
1. Disconnect the battery cable from the system board.
2. Disconnect the speaker cable from the speaker board and release the speaker cable from the routing guides over the upper
right side of the battery.
3. Remove the single (M2.5x4) screw and loosen the four captive screws that secure the battery to the computer.
4. Lift and remove the battery from the computer.

Installing the 3-cell battery

Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
28 Removing and installing components