Dell EMC Latitude 5420, Руководство по обслуживанию

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● If the battery gets stuck inside your computer as a result of swelling, do not try to release it as puncturing,
bending, or crushing a lithium-ion battery can be dangerous. In such an instance, contact Dell technical
support for assistance. See
www.dell.com/contactdell .
● Always purchase genuine batteries from www.dell.com or authorized Dell partners and resellers.
Removing the 3-cell battery
Prerequisites
1. Follow the procedure in Before working inside your computer .
2. Enter service mode .
3. Remove the SIM card .
4. Remove the microSD card .
5. Remove the base cover .
NOTE: If battery is disconnected from system board for service, then there is a delay during system boot-up as the system
undergoes RTC battery reset.
About this task
The following images indicate the location of the 3-cell battery and provide a visual representation of the removal procedure.
Steps
1. Disconnect the battery cable from the system board, if it was not disconnected earlier.
2. Remove the two screws (M2x5) that secure the battery to the palm-rest assembly and keyboard assembly.
3. Lift the battery off the palm-rest assembly and keyboard assembly.
Installing the 3-cell battery
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
Removing and installing components 33