765 not charging

 

My Nuvi 765 is no longer charging. I bought a new cable as mine was rather bent and if I held it in strange positions sometimes it would charge. The new cable came and it still does not charge. I bought a new charging base thinking this would solve the problem. Nope. Nothing. I seen a post from several years ago with someone asking the same thing, but not sure that post got resolution. Any ideas? I am getting fed up and ready to buy a new one. This is my second Nuvi. LOVED the first one, but not this one so much. If I get a new one, any recommendations of which one to get? Thanks.

Battery?

You might try replacing the battery. The old one might be totally dead and even shorted internally.

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I support the right to keep and arm bears.

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Does it charge fine when it is connected to a computer or if you have the wall adapter? I had the same problem and replaced the cradle and it didn't help.. Then I read a post about battery life and that it won't hold a charge any more and replaced the battery with a kit from ebay and viola!!! Works great as new.. If you have never changed the battery in all these years you might want to try that, It is real easy and only costs $12 or so for the battery and screwdrivers.. hope this helps.. I love my 765t and hope it lasts forever..

Bad Battery

I agree with previous comments, it could very likely be the battery is no longer able to hold a charge.

I'm not clear by what you mean by "I bought a new charging base thinking this would solve the problem".
If you are referring to the power cradle that the Nuvi sits on when in the car then you have replaced any potential external electrical problems already. After replacing with new cradle and power chord and it still doesn't work, that's a strong indicator the battery is bad.

The 765 is one of the easiest batteries to replace, it sits right under the cover. Below is a link to show you how to install the battery.
http://www.newpower99.com/ProductDetails.asp?ProductCode=GAR...

You can buy the battery & tools on Ebay far cheaper than at Newpower99, but buy only from a reliable seller and I would avoid purchasing from overseas in case the item as to be returned.

On Ebay use the keywords ". battery for nuvi 765T with toll kit”.

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Nuvi 2460LMT 2 Units

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leanne wrote:

I bought a new cable as mine was rather bent and if I held it in strange positions sometimes it would charge.

This comment makes me suspect that the miniUSB connector on the unit itself is damaged with possibly the solder pads being lifted off the main PCB or similar. If the connector on the cable was bent, I would be VERY likely to suspect some type of internal connector damage as well. This would be the reason that the unit would charge if the cable was held in a certain/odd position. I personally don't think anything is wrong with the battery. Sharcnet repairs these types of issues on nuvi units.

Also, a bit of a warning...if the connector on the unit is indeed damaged, do NOT try to perform any firmware updates or even do any file transfers to/from the unit. The intermittent connection could very well corrupt data in the process, possibly bricking it.

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nuvi 760, nuvi 765T, nuvi 855, nuvi 3790LMT, nuvi 3490LMT - SoCal area

Had no idea

muell9k wrote:

I agree with previous comments, it could very likely be the battery is no longer able to hold a charge.

I'm not clear by what you mean by "I bought a new charging base thinking this would solve the problem".
If you are referring to the power cradle that the Nuvi sits on when in the car then you have replaced any potential external electrical problems already. After replacing with new cradle and power chord and it still doesn't work, that's a strong indicator the battery is bad.

The 765 is one of the easiest batteries to replace, it sits right under the cover. Below is a link to show you how to install the battery.
http://www.newpower99.com/ProductDetails.asp?ProductCode=GAR...

You can buy the battery & tools on Ebay far cheaper than at Newpower99, but buy only from a reliable seller and I would avoid purchasing from overseas in case the item as to be returned.

On Ebay use the keywords ". battery for nuvi 765T with toll kit”.

that you can change the battery is these, and this in only one reason why I love this forum..everyone is so fantastic for information and help grin grin

leanne wrote: My Nuvi 765 is

leanne wrote:

My Nuvi 765 is no longer charging. I bought a new cable as mine was rather bent and if I held it in strange positions sometimes it would charge. The new cable came and it still does not charge. I bought a new charging base thinking this would solve the problem. Nope. Nothing. I seen a post from several years ago with someone asking the same thing, but not sure that post got resolution. Any ideas? I am getting fed up and ready to buy a new one. This is my second Nuvi. LOVED the first one, but not this one so much. If I get a new one, any recommendations of which one to get? Thanks.

When you plug in the charging cable does the battery icon on the Nuvi indicate that its charging? If not than perhaps the Nuvi power connector is damaged. If the Nuvi does indicate its charging but the battery doesn't retain the charge then its most likely time for a new battery.

765 uses the cradle

The 765 charges in the cradle not using the usb port with a separate cable connected to the cradle..

Bad USB port

finbar wrote:

The 765 charges in the cradle not using the usb port with a separate cable connected to the cradle..

Based on your previous statement about wiggling the USB connector to get it to charge, it's pretty certain that the Nuvi's USB port is bad. Especially now that you have eliminated the other possibility by replacing the cable.

I would recommend contacting Sharcnet to inquire about getting the port replaced. Or maybe it's time to think about upgrading to a newer device.

Charging Problem

Typical/preferred operation of the Nuvi 7xx is using the powered cradle.

The flat charger plug, plugs into the side of the 7xx cradle. We've seen the cradles go bad. There is a printed circuit board mounted inside of the cradle and the side-mounted receptacle breaks free from the board. It is not always obvious, unless you take the cradle apart. All of the pins may be loose or just a couple.

If Leanne has replaced the charger and the cradle, that should have eliminated any problem with powering the Nuvi. We've never had to replace the bottom connector on the Nuvi 7xx that snaps into the cradle. There is nothing there to wear out.

We've replaced a couple Nuvi 7xx USB ports and it isn't a picnic. It requires a lot of heat to wick off the solder from the through-hole mechanical legs that are holding the port to the board and extreme caution must be used when unsoldering the (5) pins, as most of the tracks on the USB port are on top of the board. It is easy to pull them up. If that happens, the connections must be restored with fine insulated wires. Again, it is not fun at all.

However, the USB ports on the Nuvi 3x0, 6x0 and 7xx are right-angle mounted, which provides a much better mechanical support than the top-mounted USB ports used on the Nuvi 11x0, 12x0, 13x0, 14x0 & 25xx units. Those units are prone to mechanical failure.

A good point made was whether the battery icon is present or not. Some Nuvi's show a yellow lightning bolt over the battery icon when the battery is charging, while others show the battery icon disappearing when external power is applied. If she is seeing the green battery icon when plugged into the charger, this means the unit is not getting external power and is running on battery power.

A Nuvi can run on an external power source with a bad or disconnected battery. However, once the external power source has been removed, the unit will die immediately.

So, I am still not clear on whether the unit is getting power or not. If the charger, charger cable and cradle is suspect, she can try powering the unit with a compatible wall charger plugged into the Nuvi's mini-USB port.

If it appears that the battery is charging by the presence of a lightning bolt over the battery icon or if the icon goes away, let the unit sit and charge for a few hours. Be sure to slide the power switch momentarily to the left to put it into charge mode (having the screen lit up only slows the charging process). Later, again move the power switch momentarily to the left to wake the unit up and then remove the power source. If the unit dies right away or after a few minutes, then I would suspect the battery.

Personally, I would only use the USB port for map and firmware updates. Unfortunately many newer models don't give you a choice and do not have a powered cradle connection.

The weight of the power cord, especially those with a traffic receiver puts stress on the USB port, while driving, eventually breaking it loose from the printed circuit board. Securing the cable to the cradle eliminates the downward stress put on the USB receptacle.

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SHARCNET-USA

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johnc wrote:
finbar wrote:

The 765 charges in the cradle not using the usb port with a separate cable connected to the cradle..

Based on your previous statement about wiggling the USB connector to get it to charge, it's pretty certain that the Nuvi's USB port is bad. Especially now that you have eliminated the other possibility by replacing the cable.

Where in Leanne's statement about the Nuvi charging problem did the OP say anything about the USB port or USB cable? The cable she is talking about plugs into the cradle..

Can't Be Sure

leanne wrote:

My Nuvi 765 is no longer charging. I bought a new cable as mine was rather bent and if I held it in strange positions sometimes it would charge. The new cable came and it still does not charge. I bought a new charging base thinking this would solve the problem.. If I get a new one, any recommendations of which one to get? Thanks.

johnc wrote:

Where in Leanne's statement about the Nuvi charging problem did the OP say anything about the USB port or USB cable? The cable she is talking about plugs into the cradle..

Based on lennes’s statement we cannot be 100% certain she is referring to the 12V power cable that plugs into the cradle.
What throws ne off is she said she replaced the charging base. This could mean the cradle, or it could mean a wall charger. If a wall charger, then it would be using the USB port. Since she hasn’t returned to the forum it's possible she decided to buy a new one and not checking the thread any longer,

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Nuvi 2460LMT 2 Units