Question about Garmin StreetPilot i3 GPS Receiver
Where do I purchase the "Internal Memory Battery" of an older (1999) Garmin GPS III Plus unit ?. OR what is the technical description and specification of the battery ??. Does any one (other than Garmin) have circuit digrams for the unit ???
The Garmin GPS III and III plus use a tabbed lithium coin battery. Its is a Panasonic BR-2032. You can buy these for about $2 from larger electronic suppliers. The problem is that the shipping or minimum order will make that $2 battery cost you about $25. For you cheap guys there is a solution. You buy a CP-2032 and a coin holder. $2-3 for the battery and $1-$2 for the holder. 6 screws to open the case, cut the wires close to the battery as possible. Solder the wires to the coin holder (good idea to heat shrink or cover the solder joints), put in the new battery and you are done the easy bit. You will most likely have to trim away some of the plastic on the holder such as legs or other things sticking out. Unfortunately you can't really do this with out fitting it in the case and you don't want to do that until you have the holder on the wires so it will be in the right place. Once you get that, simply play with it until you can put the screws back in. And tighten gently. Not too much or the gasket will be squeezed too far out. Put tAA'sx AA's back in, take it outside so it has an unobstructed view of the sky, set it down and go for a long coffee or three. It will now download the almanac and any other data which can take 15 minutes or more depending on the satellites. You should see a low battery error and other errors such as saved data lost. Ignore these. You can put it on a external power plug or just leave it off with the AA's and in 5-7 days it will have reset the error as it figures it it now charged. You get the battery error even with a new fresh charged battery. I think there is a Garmin reset code to force this but none of the codes I have tried have worked.
Posted on Nov 13, 2008
I dont have a GPS 111 plus unit but my guess is that it has a very small solder in 3v rechargeable lithium battery (as do most Garmin units)
This is a $1 quick and dirty fix which I have used for the i2, i3 and i5 series and could probably be adapted for the GPS111.
Forget all about the 'special' battery, just get a CR2025 or similar 3v lithium button cell. make it 'wire ended' by baring off the ends of some very thin connecting wire say 2 inches long and tape to each side of the battery with insulating tape. Slacken the 3 screws holding the AA battery pack and tuck the CR2025 underneath, pack some sponge on top so that when the screws are re-tightened there is sufficient pressure to keep the battery firmly in place and also to keep the wires held firmly against the battery. Remove the original button cell and wire in the new CR2025 make sure you keep the same polarity. Thats it.
I know the CR2025 is not chargeable but it does not need to be, its capacity is about 100 times greater than than the original cell and it will last at least 5 years without becoming discharged, it is not affected by the tiny charge current the garmin tries to put in it. The original button cell will have failed within about 5 yrs so it's a 'no brainer'. This solution is intended for folks with some electronic knowledge and ability, If you do not fully understand any of the above then dont attempt it'
Hope this helps.
Posted on May 23, 2008
Batteries+ was not able to do it. It is a small button type battery that is soldered in place. I am going to unsolder mine and see if I can read the numbers on the battery. I am then going to get a battery holder with leads, and solder it in place. I'll let you know what happens.
Posted on Nov 26, 2007
Do you have a "Batteries +" store in your town?
They can 'build' any battery from parts.
Posted on Nov 01, 2007
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