My Nuvi 660 will operate only when plugged into the vehicle mount. Other wise it works and tracks fine. Is this an indicator that the battery is dead?
Here's a video demonstrating how to change the Nuvi 660's battery from newpower99. I hope this helps. Peace, Craig
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Garmin NUVI 660 instructions
It is pretty easy to open up your nuvi,(but not recommended
by Garmin or me)...
looking at your nuvi from the back flip up the antenna. You will see two tiny
torx screws on the antenna. Remove them and carefully seperate the antenna
housing. Pay attention to how the antenna flex is seated because reassembling
the antenna housing can be tricky. On the left bottom side the pin assembly
that holds the antenna in is spring loaded. Pull the pin towards the center and
you will be able to seperate the antenna housing from the unit. Underneath you
will find two more tiny torx screws holding the main housing togather. Remove
those two screws and you are almost home. Now you need the special plastic tool
that you can get on ebay. The tool is used for opening ipods without mangling
them. Gently pry the case apart with this tool. Start where ever it is easiest
to get the tool in. Once opened you can figure the rest out for yourself. The
battery is flat and rectangular and is seated behind the circuit bourd attached
to the back cover.
I had a power button problem on my Nuvi 350 and Lance's description of opening the Nuvi was the best I came across.
a few suggestions to add:
#1. When the you remove the antenna, that spring loaded clip will want to fly off into space. Both the plastic clip and the spring behind it are not held in by anything when the antenna is removed. Make sure you put your hand over it to catch it.
#2. Those torx screws are TINY. I have a pretty good security security bit set and not even close to small enough. I found a #2 precision screwdriver (3/64th slotted not phillips head) was able to bite on those screws pretty well without slipping and stripping.
Do you see a lightning bolt symbol over the battery bar graph? This indicates that its charging. When you disconnect it from the car cradle, what happens? Does it stay on and ask you to select to stay on or shut down or does it go dead? If it goes dead right away, yes your battery is defective and needs to be replaced.
- Jim
SHARCNET-USA
Your Nuvi needs to be dissassembled, using the right tools and the battery needs to be replaced.
Please see this link for more info. Too much info to copy and paste here:
http://www.sharc.net/nuvi_battery_repair...
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You probably need a new battery. Ifthey don't give you a new one under warranty, are third party Garmin repair services that will fix it for cheap. Also, I found an DYI GPS repair guide,so you can do it yourself too, not that difficult. The part is on Ebay.
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When I unplug it; it goes dead instantly. I suspected the battery. Can I get a new one without a complete rebuild? Otherwise it seems to work great. Thanks for the help.
Response was quick and confirmed my idea of the apparent problem. I intend to ship to the responder for repair. Thanks again for the service.
I just deleted some jpg files to save space and added gpx poi files Now when I turn it on it says 'loading maps' and then the screen goes blank. Battery fully charged.
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