Tomtom Go 720 Replacement Battery

DracUK · Regular Visitor Joined: Aug 02, 2005 Posts: 133

These batteries can be changed without removing the ribbon cable,Ive done loads.Use this video to help you.

http://www.youtube.com/watch?v=VYA5zFO3Ap4

Also it might help loosen the adhesive tape if you plug the unit into a charger for a while to warm the battery up.

DracUK

StanStill · Regular Visitor Joined: Feb 27, 2005 Posts: 81

I agree with the above, you don't need to remove the ribbon cable it is easier leaving it in place. I got my battery from "BatteryMill" which came with tools to do the job. The way that I removed the battery from the circuit board was to warm the battery gently with a hairdryer and used the corner of an old credit/store/loyalty card to gently cut away the adhesive underneath.

It also helps if you put your screwdriver on a magnet to magnetise it so that the small screws stick to it (you take the magnet off first of course) In total it took about half an hour slowly following the video in the link in the previous message.

technik · Posted: Thu Jan 06, 2011 7:53 pm Post subject:

Replaced my 730 battery last year and agree with others it's best not to disconnect any ribbon cables as there is no need to do this.

The new battery is far better than the old one ever was.
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GO 620, Tomtom Android EU,
Garmin 2548LMT-D; 2599LMT-D

Andy_P · Posted: Thu Jan 06, 2011 9:07 pm Post subject:

Not disconnecting the ribbon cable..... Shocked

Either they are using less sticky glue to weld the batteries to the PCB now, or you have very impressive hand control.

By the time you've got about three tools in there prising the battery up enough to squirt the tin of WD40 or other solvent, I'd think there's every danger of damaging the ribbon or connector.

(Admittedly, the tiny latches on those connectors can be a bit scary and easy to wreck if you get it wrong)

DennisN · Posted: Thu Jan 06, 2011 11:27 pm Post subject:

I replaced the battery in my GO520 a month ago. So easy it was like falling off a log and took a mere ten minutes from start to end.

How???

I passed it across the table to MikeAlder between prawn cocktail and roast turkey! Laughing

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Dennis

If it tastes good - it's fattening.

Two of them are obesiting!!

StanStill · Regular Visitor Joined: Feb 27, 2005 Posts: 81

It was my first time Andy and I used the link to the video above. I admit that they made the removal of the battery too easy as they obviously had removed it before. Believe me, the battery was stuck fast but gently warming and patient levering with a plastic card worked a treat and there was not the hassle of removing/refitting the ribbon cable.

Brad99 · Occasional Visitor Joined: Apr 12, 2008 Posts: 11

I've just changed my 530 battery, took about 20 minutes. It's an Amazon £6 battery, time will tell if it's good or not. The TomTom battery was 4 yrs old and completely gone, barely lasting a day in standby after a full charge.

Agreed, no need to unplug the ribbon cable. The OEM battery was held in place with double sided tape and once it had started to lift a bit with a plastic lever (old Isopon spreader) it came off quite easily without heat but it's a warm day which probably helped. I reused the tape on the new battery. The 530 booted up OK afterwards.

Calomax · Posted: Sun Jul 22, 2012 4:05 pm Post subject:

I replaced my Go 720 battery this afternoon in about 15 minutes with a £6.12 one from Amazon and all appears to be well. I had read Mike Alder's instructions and followed the uTube video.

I was dead lucky, the tape holding the old one had lost its strength and the battery fell out Taunt

it had been replaced by satnavshop a few years ago and the tape was probably not as strong as what TomTom used originally.

I would now like some advice as to how best to look after it. I know LiOns don't have a memory effect like NiCads so have always kept the device on charge in its dock and I wondered if that's why the last 2 batteries haven't lasted very long. It's only used 2 or 3 times a year, always plugged into the car charger.

I have an iPad app called Battery Doctor which advises that, at least once a month, the battery should be allowed to go below 20%. and I wondered if I should be doing the same with the 720 or if there's something else I should be doing.
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TT Go Essential

Andy_P · Posted: Sun Jul 22, 2012 7:44 pm Post subject:

I rather like the Battery University website, for these questions about battery conditioning etc..

Lots to read there, but I found this straight away:

Calomax · Posted: Sun Jul 22, 2012 9:14 pm Post subject:

cn1701 · Lifetime Member Joined: May 22, 2006 Posts: 12

The battery in my 930 has been playing up for a while now so I might as well try and replace it.

Are there any recommended sellers or brands as I would want to avoid fitting a cheap chinese aftermarket replacement and have it go up in smoke or worse.

Calomax · Posted: Tue Jul 31, 2012 10:21 pm Post subject:

My Amazon one seems fine.
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TT Go Essential

cn1701 · Lifetime Member Joined: May 22, 2006 Posts: 12

Calomax · Posted: Wed Aug 01, 2012 8:41 pm Post subject:

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