Dell Latitude 3550 - Chapter 6: Removing and Installing FRUs; Battery, Power Adapter Port, and Heat Sink

Removing and installing Field Replaceable
Units (FRUs)
The replaceable components in this chapter are Field Replaceable Units (FRUs).
CAUTION: The information in this section is intended for authorized service technicians only.
CAUTION: To avoid any potential damage to the component or loss of data, ensure that an authorized service
technician replaces the Field Replaceable Units (FRUs).
CAUTION: Dell Technologies recommends that this set of repairs, if needed, to be conducted by trained
technical repair specialists.
CAUTION: As a reminder, your warranty does not cover damages that may occur during FRU repairs that are not
authorized by Dell Technologies.
NOTE: The images in this document may differ from your computer depending on the configuration you ordered.
Battery
Rechargeable Li-ion battery precautions
CAUTION:
● Exercise caution when handling rechargeable Li-ion batteries.
● Discharge the battery completely before removing it. Disconnect the AC power adapter from the computer
and operate the computer solely on battery power—the battery is fully discharged when the computer no
longer turns on when the power button is pressed.
● Do not crush, drop, mutilate, or penetrate the battery with foreign objects.
● Do not expose the battery to high temperatures, or disassemble battery packs and cells.
● 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 computer 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 rechargeable Li-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 rechargeable Li-ion batteries, see Handling swollen rechargeable Li-ion batteries.
Removing the battery
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the base cover.
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Removing and installing Field Replaceable Units (FRUs) 53