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Tomtom Go 720 Replacement Battery
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Andy_P
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PostPosted: Sat Oct 10, 2009 8:34 pm    Post subject: Reply with quote

Darren wrote:
I'll bet they either replace the innards as a whole or an entire replacement unit.


Then they send it back to you with out of date software and a two year old map!
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MikeB
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PostPosted: Sat Oct 10, 2009 9:09 pm    Post subject: Reply with quote

Article from the Launch and my first impressions of the TomTom Start are here.
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Calomax
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PostPosted: Sat Oct 10, 2009 10:13 pm    Post subject: Reply with quote

MikeB wrote:
Article from the Launch and my first impressions of the TomTom Start are here.
I'm reluctant to correct an editor, but have you posted in the right thread Mike?
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Andy_P
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PostPosted: Sat Oct 10, 2009 10:31 pm    Post subject: Reply with quote

Laughing
(what you need is a mod. to sort it out for you! Wink )
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MikeB
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PostPosted: Sun Oct 11, 2009 9:42 am    Post subject: Reply with quote

Calomax wrote:
MikeB wrote:
Article from the Launch and my first impressions of the TomTom Start are here.
I'm reluctant to correct an editor, but have you posted in the right thread Mike?

Smile I am always open to correction, and after a long day often make mistakes...
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bat9985
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PostPosted: Wed Oct 14, 2009 4:24 am    Post subject: Reply with quote

My wife and I have 2 TomTom Go720's, both have batteries with waning capacity. I've been following this thread, ordered the tools and I'm about to order the batteries.

I was wondering if anyone considered using a solvent on the battery adhesive? In the US we have a couple of products I've used on adhesives, Goo Gone and Sticker Lifter, both available at the local hardware store.

Both have worked well to remove adhesive on a variety of surfaces, including plastics and the the paint on a car body, without damaging hte surfaces.

Thanks for providing this forum and assembling the info.

Bryan
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mightyyid
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PostPosted: Thu Oct 15, 2009 6:29 am    Post subject: Reply with quote

bat9985 wrote:
My wife and I have 2 TomTom Go720's, both have batteries with waning capacity. I've been following this thread, ordered the tools and I'm about to order the batteries.

I was wondering if anyone considered using a solvent on the battery adhesive? In the US we have a couple of products I've used on adhesives, Goo Gone and Sticker Lifter, both available at the local hardware store.

Both have worked well to remove adhesive on a variety of surfaces, including plastics and the the paint on a car body, without damaging hte surfaces.

Thanks for providing this forum and assembling the info.

Bryan


Bryan

The key issue is that in order to gain access to the solvents holding the battery in place, you have to lift the battery up to get this access and in doing so, you then actually begin to 'peel' the battery away from the PCB, thus doing what you set out to do without the aid of solvents.

It could be that this will help if sprayed on and left, in the same way that WD40 loosens bolts etc, but with the ease of over-spray, I'd be tempted to try the suck it and see - slowly - approach and gently prise the battery up.

Interesting you will do two of them. One will be very easy, the other bloody difficult. The easy one will be the first one.

Law of sods, averages, and tomtom....
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EricWB
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PostPosted: Thu Oct 15, 2009 8:49 am    Post subject: Reply with quote

The weird thing is that even if at the last moment you decide to do the last one first, and the first one last, it wont make any difference, the last one will still be difficult, its called sods law.
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Brad99
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PostPosted: Fri Oct 16, 2009 11:04 pm    Post subject: Reply with quote

MrT wrote:
Cameras also only use power momentarily when taking a picture, GPS devices run continously processing information.


Digital cameras use a lot of power all the time they're switched on, especially if the display is on. Their sleep modes are very efficient though.
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AliOnHols
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PostPosted: Sat Oct 17, 2009 6:02 am    Post subject: Reply with quote

Andy_P wrote:
Laughing
(what you need is a mod. to sort it out for you! Wink )


Seek and Ye shall find. Congratulations Very Happy
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Andy_P
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PostPosted: Sat Oct 17, 2009 2:03 pm    Post subject: Reply with quote

Thanks! It was just going through that evening....
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garcor
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Location: Nova Scotia & Florida in Winter Go 920 App 8.351 Maps NA 850 & C/W EU 830

PostPosted: Fri Oct 23, 2009 1:01 pm    Post subject: Reply with quote

I have had my 920 for 20 mts now and not used a lot but has sat on home cradle most of the time.
My battery is now dead; it simply will not take a charge. Not even for 5 minutes.

When connected to the computer it will connect to TT home but it will not stay on if I chose the option to not to connect to computer but still leaveing it on the cradle.

It will still work fine when plugged in the car charger or when I have it on the (optional) home charger.

I am thinking that I might be willing to try and change the battery but I wonder if I might be better to buy an external rechargeable power source.

Has anyone had any luck using a rechargeable external power source and if so how long will it run and if you have a link to where they can be bought.

Thanks
Gary
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MarkMarkB
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PostPosted: Fri Oct 23, 2009 3:58 pm    Post subject: Reply with quote

Oddly enough I have been having similar thoughts and have recently bought a rechargeable device and an external power source that uses 4 AA cells. The rechargeable device has two Sony Li-Po cells of 1350mAh each, so should provide twice the life of the original battery. The TomTom mounts in the rechargeable device and the whole thing mounts on the original bracket. The combined weight tends to cause the thing to drop over time. The widget powered by the 4 AA cells is cheap and effective and useful if you are away from any charging source. I got them off Ebay, try searching for

Battery Extender Charger for TomTom Go 930 930T

and

Portable Battery Pack Mount Holder For Tomtom 920 930T
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stuart
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PostPosted: Fri Oct 23, 2009 5:11 pm    Post subject: Alternative to replacing the battery Reply with quote

There is also this option which might be alot easier..

http://www.pdamods.com/proddetail.asp?prod=111A1TT720EXTBATPACK
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garcor
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Location: Nova Scotia & Florida in Winter Go 920 App 8.351 Maps NA 850 & C/W EU 830

PostPosted: Fri Oct 23, 2009 8:31 pm    Post subject: Re: Alternative to replacing the battery Reply with quote

stuart wrote:
There is also this option which might be alot easier..

http://www.pdamods.com/proddetail.asp?prod=111A1TT720EXTBATPACK


Mark had some good suggestions but for my situation I think your suggestion for this battery pack would do the trick if it were a good as they say, especially if it would give you ten hours of use.

Have you tried this unit or is there anyone that has tried this as an external power source.
Gary
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