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AndyLandy
4th November 2009, 09:26
Just spotted this on the Other Bay http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=320444099285 (Buy it now) battery kit for Amiga. Looks like a reasonable solution to the leaking battery problem.

What do folks recommend? I'm inclined to get one each for the 2000 and the 4000, or would I be better off sacrificing old PC motherboards? ;-)

keropi
4th November 2009, 09:29
check this auction too: http://cgi.ebay.com/COIN-LITHIUM-BATTER ... 33564eff85 (http://cgi.ebay.com/COIN-LITHIUM-BATTERY-BACKUP-for-AMIGA-4000-3000-2000_W0QQitemZ220491349893QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item33564eff85)

he has pics, and a diode on the battery socket to prevent it from charging :thumbsup: this is essential!

davideo
4th November 2009, 09:34
check this auction too: http://cgi.ebay.com/COIN-LITHIUM-BATTER ... 33564eff85 (http://cgi.ebay.com/COIN-LITHIUM-BATTERY-BACKUP-for-AMIGA-4000-3000-2000_W0QQitemZ220491349893QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item33564eff85)

he has pics, and a diode on the battery socket to prevent it from charging :thumbsup: this is essential!

@Andy

Scrappyspinx (why can't user handles be easier to spell :lol: ) had some of these up for sale on here.

I've also got a couple of spares hanging about.

Dave G 8)

AndyLandy
4th November 2009, 10:01
Well, if either @davideo or @scrappysphinx have spares, I'd rather throw money at the lovely folks of Amibay, rather than J. Random Seller on the Other Bay.

davideo
4th November 2009, 10:26
@Andy

This is Mikes thread showthread.php?t=2285 (http://www.amibay.com/showthread.php?t=2285)

If he's run out of them let me know and I'll sort mine out.

Dave G 8)

davideo
4th November 2009, 18:12
@Andy

PM on the way.

Dave G 8)

Glenn
4th November 2009, 19:53
..Or just mount a supercap instead, and you dont have to modify the charging, and dont have to replace batterys..

I have done it on my A4000.. 2.2F if I remember correctly, can hold the time at least a week, never tried it for a longer time.

rkauer
4th November 2009, 21:33
@Glenn: yes, it will work. But the Amiga RTC is a "hungry" device compared with PC BIOS or industrial devices where some supercapacitors are used in.

The capacitor's charge will not last much more than 10 days, even this insane 2.2F (2,2 million micro-Farads!) capacity unit.

SkydivinGirl
6th November 2009, 19:43
I purchased one of the batteries with the diode from evilbay after Keropi's post. I really don't need a RTC for anything, but I figure it would be nice. :-)

Heather

Merlin
6th November 2009, 19:48
2,2 million micro-Farads![/B]
)capacity unit.
Mmmmmm.... millions of micro farads......:drool:
:laugh:

davideo
6th November 2009, 22:36
@Andy

Your batteries etc were posted last night.

Hopefully they should have arrived today.

Dave G 8)

AndyLandy
13th November 2009, 21:31
@Andy

Your batteries etc were posted last night.

Hopefully they should have arrived today.

Dave G 8)

IT WORKED! :woot::woot::woot:
My soldering skills are pretty weak at best, but with an awful lot of time and patience, my A2000 can now keep the time without rotting her motherboard! As ever, here is the obligatory pr0n shot -- Not the prettiest job in the world, but functional, and now I know there's no chance of her dying of battery leakage. :-)

http://www.proggle.net/%7Eandrew/download/coinbattery.jpg

@davideo: Thanks for the bits, 'tis appreciated. I'll try and find a moment over the weekend to throw feedback at you (and everyone else I owe feedback to!)

:woot::woot::woot:

davideo
13th November 2009, 21:39
Not the prettiest job in the world, but functional, and now I know there's no chance of her dying of battery leakage. :-)

We can't all be Zeet masters :lol:

As long as it works that is the main thing :thumbsup:

Dave G :cool: