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Old 05-19-2008, 07:00 AM   #1
tsizmo OP
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Same here..
I found this: http://gpsinformation.biz/phpBB2/viewtopic.php?t=4701
..i think I'm getting ready for the... operation..

tsizmo screwed with this post 05-19-2008 at 10:00 AM
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Old 05-19-2008, 10:54 AM   #2
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Replacing 276C Internal Battery

Ok first remove the screws from the box shell
and the ring of the antenna base connector










carefully lift the aluminium paper behind the LCD screen (dont worry it has only soft glue)





remove PCB screws







at the back of the PCB you can see the battery












It's a VARTA MC621




Replace and voyla... no more acquiring satellites delay
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Old 05-19-2008, 04:46 PM   #3
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Thnk You!!!

...and that's how it's done. people ask a question, and the Internet serves up a couple casual responses and one ridiculously well documented response.

Thanks much. I'll do this and get back pronto.

--Ranjan
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Old 05-20-2008, 06:57 AM   #4
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That’s what probably happened to mine, same symptoms, cost me just over £100 when I sent in to Garmin for service

It probably means they’re all destined to fail some time after 3 years, as mine did


According to the Varta life expectancy of Varta MC621
10%DOD - 1000 cycles
100%DOD - >200 cycles
Deep Discharge - >100 cycles

DOD = Depth of Discharge
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Old 05-20-2008, 01:08 PM   #5
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Quote:
Originally Posted by ebbo
...cost me just over £100 when I sent in to Garmin for service
It probably means they’re all destined to fail some time after 3 years, as mine did
totaly agree..!! For something so simple, Garmin keeps us in the dark...
...wondering why... $$$
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Old 05-20-2008, 06:23 PM   #6
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one of the ways to get by the phone wait is to use the marine service this works with 276's and 176's since they are really marine chart plotters.
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Old 07-17-2008, 08:29 AM   #7
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WOW! Thanks

Quote:
Originally Posted by tsizmo
Ok first remove the screws from the box shell
and the ring of the antenna base connector



Replace and voyla... no more acquiring satellites delay
You sir, are a prince. The hardest part of this endeavor will now be finding that battery online.

THANK YOU, very much.

Nils
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Old 07-17-2008, 09:02 AM   #8
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Thumb

Quote:
Originally Posted by tsizmo
Replace and voyla... no more acquiring satellites delay
You are the man. My 276c is way too new to do this, but I'm stashing this information away for the inevitable.
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Old 07-17-2008, 09:23 AM   #9
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Quote:
Originally Posted by Noblehops
You sir, are a prince. The hardest part of this endeavor will now be finding that battery online.

THANK YOU, very much.

Nils
OK, this battery is actually discontinued by the manufacturer, although I was finally able to track it down online. So it's written down somewhere, this is what I learned:

It's a Lithium Ion rechargeable battery
it's 3.0 volts
it's 3.0 mAH (milliamps)
It measures 6.8 mm in diameter
It measures 2.15 mm in height.

This online battery retailer (Apex Batteries) had it, but it was obfuscated with a really long part number including some superfluous information.

http://www.apexbattery.com/mc6216062...batteries.html

They have it listed as
MC62160621-101-511 - Rechargable Lithium Battery

I bought 2 :-)

Nils
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Old 07-17-2008, 02:42 PM   #10
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Quote:
Originally Posted by Noblehops
...
It's a Lithium Ion rechargeable battery
it's 3.0 volts
it's 3.0 mAH (milliamps)
It measures 6.8 mm in diameter
It measures 2.15 mm in height.
...
Nils
..no worries man, just put ANY 3.0 volt battery that fits (a little larger will also do the job) thus more milliamps more battery life..

A friend of mine already put a larger sanyo battery and his GPS is working fine..


also remember to "scratch" both the battery poles before using the soldering gun..

cheers..
Jim

tsizmo screwed with this post 07-17-2008 at 02:49 PM
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Old 07-17-2008, 02:49 PM   #11
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Question related q about water-resistance...

Quote:
Originally Posted by intr1gue
...and that's how it's done. people ask a question, and the Internet serves up a couple casual responses and one ridiculously well documented response.
Of course, one additional question: is there an o-ring or something that needs to be replaced when you replace this battery? I know when you unseal watches sometimes the ring needs to be replaced, or else the thing's no longer watertight...is this a problem or will it stay watertight even after it's been opened and put back together again with the original ring?

--Ranjan
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Old 07-19-2008, 04:41 AM   #12
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Quote:
Originally Posted by intr1gue
Of course, one additional question: is there an o-ring or something that needs to be replaced when you replace this battery? I know when you unseal watches sometimes the ring needs to be replaced, or else the thing's no longer watertight...is this a problem or will it stay watertight even after it's been opened and put back together again with the original ring?

--Ranjan
no problem for me..
the "o-ring" is a heavy duty rubber seal
Just remember to carefully wipe it before closing the unit
with a soft slightly wet cloth..


i've wash the GPS a couple of times at home
and also did a big trip last September with
lots of km under heavy rain ...no problem at all
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Old 07-19-2008, 05:11 AM   #13
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This is so good, it deserves its own thread.

Dave
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dunno.....
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Old 07-26-2008, 07:15 PM   #14
Noblehops
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OK, How to install the new battery?

Quote:
Originally Posted by tsizmo
Same here..
I found this: http://gpsinformation.biz/phpBB2/viewtopic.php?t=4701
..i think I'm getting ready for the... operation..
OK, I tore into it, as my GPS is about 4 years old, and although a reset did speed it up, it seemed like a matter of time before the battery croaked, and it didn't seem too fiddly.

Disassembly went fine, but when I got to the battery itself, it looked like it had been spot welded with the world's smallest spot welder. If you look closely at the close up photo you will see a pair of teeny dots. That's what I found.

Forging ahead I wiggled an Xacto blade in there and gently freed the battery. But how to reinstall? I attempted to put a teeny dot of solder on the two contacts that sandwich the battery, but it would not stick to the battery, nor could I get it hot enough to stay molten and get the battery on it.

Along the way I fear I shorted the new battery with solder, and I don't want to chance putting that one in. I'm going to order another.

I took some crazy glue to one of the now un-trusted batteries and tried sticking it to some pot metal. Presto! it's stuck hard. But is that kosher? Is ther some magic PC glue that is conductive?

I can't imagine how the heck I'm going to fix this any other way than gluing it on. Suggestions, pointing and laughing, etc are welcome.

Nils
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Old 07-27-2008, 03:27 AM   #15
JDLuke
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Quote:
Originally Posted by Noblehops
I can't imagine how the heck I'm going to fix this any other way than gluing it on. Suggestions, pointing and laughing, etc are welcome.
Perhaps a bit of emery cloth to roughen the surface of the battery would allow the solder to take hold?

Oh, almost forgot:
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