How to Replace the Internal Battery on a Garmin 100 GPS

Written by ashley seehorn
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How to Replace the Internal Battery on a Garmin 100 GPS
The Garmin GPS 100 can be used for handheld or vehicle navigation. (handheld gps image by Christopher Dodge from

The Garmin 100 GPS is a personal navigation device that utilises Global Positioning System (GPS) technology to pinpoint the device's location on the earth. The device, a GPS satellite receiver, superimposes a map of your surroundings on a viewscreen, acting as a guide to help you to navigate the roads or terrain around you. The GPS 100 is one of Garmin's early products, released in 1992. The GPS 100 is equipped with a rechargeable battery pack, but I can be operated with AA batteries. The procedure for replacing the internal rechargeable battery or replacing AA batteries is the same.

Skill level:

Things you need

  • Replacement battery pack or
  • AA batteries

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  1. 1

    Turn off the GPS 100.

  2. 2

    Remove the mounting bracket if it is installed.

  3. 3

    Remove the data/power cable or charger from the device.

  4. 4

    Push and hold the release catches on the rear of the unit.

  5. 5

    Slide the battery pack out of the unit.

  6. 6

    If using AA batteries, place batteries into the pack.

  7. 7

    Slide the new battery pack into the unit until it clicks into place.

  8. 8

    Replace the charger or cable if desired.

  9. 9

    Return the unit to the mounting bracket if desired.

Tips and warnings

  • The unit will weigh less with AA batteries than with the rechargeable pack. Therefore, when using the device for handheld navigation, AA batteries may be desirable.
  • Replacing the original Garmin GPS 100 rechargeable battery may invalidate your warranty. Check the product's documentation for warranty information.

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