Dell Inspiron 15 3521, Руководство по обслуживанию

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● Do not apply pressure to the surface of the battery.
● Do not bend the battery.
● Do not use tools of any kind to pry on or against the battery.
● Ensure any screws during the servicing of this product are not lost or misplaced, to prevent accidental
puncture or damage to the battery and other system components.
● 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.
● Swollen batteries should not be used and should be replaced and disposed properly. For guidelines on how to
handle and replace swollen Lithium-ion batteries, see
Handling swollen Lithium-ion batteries .
Removing the 3-cell battery
Prerequisites
1. Follow the procedure in Before working inside your computer .
2. Remove the secure digital card .
3. Remove the base cover .
About this task
The following image indicates the location of the 3-cell battery and provides a visual representation of the removal procedure.
Steps
1. Remove the three screws (M2x3) that secure the 3-cell battery to the palm-rest and keyboard assembly.
2. Lift the 3-cell battery along with the battery cable off the palm-rest and keyboard assembly.
Removing and installing components 19