Question about Garmin Nuvi 660 GPS Receiver

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Garmin NUVI 660 power problem.

The unit will charge off of the usb on the computer. But it will not charge off of the stand plug in or the regular car plugin. I have tested both chargers in two diferent cars and they both have dual plug in for devices. And both car accessory plugin untis work with my other devices (cell phones ....) any suggestions?

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  • Anonymous Dec 01, 2008

    wont charge from the car when plugged in



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To charge a nuvi, use one of the following methods:

  1. Connect the nuvi to the suction cup mount and the vehicle power cable.
  2. Connect the USB cable to the nuvi and the computer. The computer will charge the nuvi as long as the computer is on. However, the unit will be in Mass Storage Mode and normal operation is not possible.
  3. Connect the AC power cable and the nuvi to a wall outlet.
Please note: All of the nuvi series will come with a suction cup mount and vehicle power cable to charge the nuvi. However, only some of the nuvi models will come with an AC power cable and/or USB cable. If they did not come with the nuvi, they would be optional cables and would be a separate purchase. Garmin only recommends using an AC power charge that is purchased from Garmin. Third party power cables may not charge the nuvi. These cables may be purchased from Garmin or Garmin's dealers.

Posted on Oct 11, 2008

  • Todd Gale
    Todd Gale Oct 11, 2008

    I do not understand the thanks for trying rating, when in fact I did answer your exact problem Apparently, according to what I believe is your philosophy, if it works on one phone, it should work on any device. I will go with that, if I wanted to be wrong, or worse yet, reckless. Power passed through a USB cable may use any of 5 different connect points, due to voltage/amperage output. So if i was a betting man, I would be any amount on this point, take your car charger to and electronics store and ask them to bring their demo nuvi out and test your cable. My money say it will not charge, and I have only been doing this since the GPS was sold exclusively to the military. Sorry for the harsh response, but this is a pride thing and I do not believe the ratign was deserved.

    Third party power cables may not charge the nuvi.


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There's a 1amp fuse in the end of the car charging jack. Did you check it? (I think the LED won't light, if the fuse is bad.) Just unscrew the end of the jack that goes into the cigarette lighter socket and you'll see it. Open it slowly, there's a small spring inside that presses on the end contact. If you press on it before unscrewing the tip of the plug, you'll feel it spring up and down.

Posted on Oct 11, 2008

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Hi, sounds like the problem is where the mounting cradle plugs into the Nuvi. Basically, there are 4 copper pins at the back of the Nuvi for the mounting cradle. These in turn are spring loaded onto the motherboard inside the Nuvi.

It is possible that the tension is not suffcient to hold these pins onto the motherboard

Not the easiest of units to dismantle, but a 5 minute job once the Nuvi is open.

Check for 'Nuvi repairs' as we offer the best value all in fix for Garmin Nuvis.

See our Ebay feedback!!


Posted on Dec 13, 2008

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My garmin nuvi works as a stand alone, but plug her in to computer or car power and all you get is a screen showing garmin logo and a picture of it connected to a computer.


You will need to reset your Nuvi as it is locked into computer mode. To reset it - depending on your version see below.

On some Nuvis there is a recessed master reset button on the body of the unit which you need to access with a nib of a pen or bent paper clip.

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If the above fails it is likely that the problem is not with the Nuvi but the charging unit which is not signalling the unit properly and the Nuvi is recognising it as a USB cable instead of a charger.

Hope this helps. Please remember to rate my answer. Many Thanks.

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It sounds like your battery is defective. They can be replaced. The Motorola phone cable is not wired exactly like the Garmin, and your Nuvi thinks it's connected to a PC. Radio Shack carries a charger for the Nuvi. I have one myself.

Let me know if you need additional help with your battery problem.

- Jim

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