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The battery in your Garmin Drivesmart 55 EX can lose its ability to hold a charge over time after frequent use. This can reduce the charged battery life and eventually may only be operable when connected to an external power source or inoperable.

The battery is connected to the motherboard through a small plug underneath, requiring you to unscrew and lift the motherboard. Before using this guide, ensure the battery is the issue by testing the charging cable and the vehicle connector cable.

This guide will show you how to replace the battery in your Garmin DriveSmart 55 EX GPS device. Replacing the battery can restore the overall battery life when in use, reduce charging times, and improve overall reliability. From this guide, you will learn how to safely replace the battery on your Garmin device.

Caution: If you notice your battery is swollen or smells strange, be careful when removing it from the device. A swollen battery can explode and catch fire. The What to do with a swollen battery guide is a helpful resource. Check it out for helpful safety tips.

Before you begin, make sure the device is powered off and unplugged from the charger.

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Garmin DriveSmart 55 EX Battery Replacement, Battery: crwdns2935265:01crwdnd2935265:01crwdnd2935265:03crwdne2935265:0

Garmin DriveSmart 55 EX Battery Replacement, Battery: crwdns2935265:01crwdnd2935265:02crwdnd2935265:03crwdne2935265:0

Garmin DriveSmart 55 EX Battery Replacement, Battery: crwdns2935265:01crwdnd2935265:03crwdnd2935265:03crwdne2935265:0

Use a T5 Torx screwdriver to remove the four 4.2 mm black screws from the back case.
Insert the plastic opening tool into the gap between the screen and case, and release the clips along the edges of the device.
Use opening picks along the perimeter to keep them separated until you can remove the screen.

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Garmin DriveSmart 55 EX Battery Replacement: crwdns2935265:02crwdnd2935265:01crwdnd2935265:03crwdne2935265:0

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Garmin DriveSmart 55 EX Battery Replacement: crwdns2935265:02crwdnd2935265:03crwdnd2935265:03crwdne2935265:0

Gently separate the screen from the case and place the device flat on the surface.
Avoid pulling on the screen too forcefully, as the display ribbon cable is still connected to the motherboard.
Use a T5 Torx screwdriver to remove the four 3.8 mm silver screws from the motherboard.
Avoid scratching the motherboard when using the screwdriver, as this can damage the device.
Gently pry the motherboard up using the plastic opening tool.

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Garmin DriveSmart 55 EX Battery Replacement: crwdns2935265:03crwdnd2935265:01crwdnd2935265:03crwdne2935265:0

Garmin DriveSmart 55 EX Battery Replacement: crwdns2935265:03crwdnd2935265:02crwdnd2935265:03crwdne2935265:0

Garmin DriveSmart 55 EX Battery Replacement: crwdns2935265:03crwdnd2935265:03crwdnd2935265:03crwdne2935265:0

Use your fingers or tweezers to disconnect the battery connector on the underside of the motherboard.
Avoid pulling on the cables.
Gently remove the battery from the casing.
If you're unable to get a grip on it, use the opening tool to lift it enough to get your fingers underneath.
Avoid bending or puncturing the battery as it can catch fire.