Question about Garmin GPS 12 GPS Receiver

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Internal battery dead,how to replace

How do I change the internal battery in my garmin 12 as I loose all data when I turn it off or change external batteries. Thanks

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The GPS 12 has an internal battery soldered to the board inside the unit.
I have replaced about a dozen of these over the years,
The problem is caused when the unit is stored for a long time without batteries.
The internal battery is not a rechargable.
You have to use a screwdriver in the crack that joins the 2 parts of the case and break the seal to split the case open.
This will of corse render the waterproofness of the unit void.
You then have to unsolder the internal battery from the board and find a replacement.
It is a tagged lithum battery, I can't remember the model at the moment.
Inside you will also notice the surface mount Intel 386 Chip. which is the main processer.
This has nothing to do with the battery but I found it interesting that a chip in a computer from the mid 80s worth over $3000 then, still has a use.

When you have soldered the new battery into place you need to either glue or tape the unit back together. Be careful not to damage the other parts around the battery.


Always keep charged batteries in the unit when not in use.

Hope this helps.

Alan

Posted on May 12, 2009

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