Introduction
If your battery has lost the ability to hold a charge, it will need to be replaced. This tutorial will guide you through replacing the battery of a Dell Latitude 7420 .
Before starting, please ensure the device is turned off and disconnected from any adaptors or charging cables.
Likewise, use an anti-static band or mat when opening computers or handling components.
If the battery is swollen, be sure to take precautions.
What you need
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Remove the eight, 7 mm screws from the back case using a Phillips #0 screwdriver.
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Use an opening pick or opening tool and work your way around the periphery of the base cover to separate it from the chassis.
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Using the Phillips #1 screwdriver, remove the five 5 mm screws securing the battery to the motherboard.
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To reassemble your device, follow these instructions in reverse order.
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