This 3D experience gives you the step by step process of replacing the Coincell Battery and a Inspiron 5420. The procedure will also include removing the Base Cover, Battery Cable and reinstalling them.
Removal
Base Cover
Identify the base cover highlighted in blue.
Remove the screws that secure the base cover to the system.
Loosen the captive screws on the base cover.
Using a plastic scribe, pry the base cover from the bottom left and continue to work on the sides
Lift the base cover off the system.
Battery Cable
Identify the battery cable highlighted in blue.
Disconnect the battery cable from the system board.
Press and hold the power button for 10 seconds to ground the system and remove residual static electricity.
Coincell Battery
Install
Coincell Battery
Battery Cable
Identify the battery cable location highlighted in blue.
Connect the battery cable to the connector on the system board.
Base Cover
Identify the base cover location highlighted in blue.
Align the base cover and press the edges of the cover until it clicks into place.
Tighten the captive screws that secure the base cover.
Install the screws that secure the base cover.