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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: weirdami on April 24, 2008, 04:46:21 AM

Title: worlds smallest a2000 battery replacement
Post by: weirdami on April 24, 2008, 04:46:21 AM
Look (http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ih=012&category=3543&ssPageName=WDVW&item=220226671885&rd=1) how small this thing is. It's on ebay, I'm not selling it, but scroll down to the bottom and you'll see a picture of it up close. Talk about tiny! I mean, wow, so small you need a macro photo of your fingertip to see it!
Title: Re: worlds smallest a2000 battery replacement
Post by: Zac67 on April 24, 2008, 07:18:53 AM
Err - that's a standard CR2032 battery... What's making it so tiny?
Title: Re: worlds smallest a2000 battery replacement
Post by: pyrre on April 24, 2008, 07:44:07 AM
what component do you need to add to the socket in order to prevent charging the battery?
Title: Re: worlds smallest a2000 battery replacement
Post by: Skyrunner on April 24, 2008, 07:59:22 AM
http://aminet.net/docs/hard/LithBatt.lha

Title: Re: worlds smallest a2000 battery replacement
Post by: davideo on April 24, 2008, 08:15:34 AM
CPC sell a rechargeable Lithium cell battery and holder in one.

I've fitted one of these to my 2000HD and 4000D  :idea:

I'll be doing my 2 * A500+ shortly.

Dave G  8-)
Title: Re: worlds smallest a2000 battery replacement
Post by: rkauer on April 24, 2008, 04:25:05 PM
Quote

pyrre wrote:
what component do you need to add to the socket in order to prevent charging the battery?


 A germanium diode, nothing more. Why germanium? Because it only have a voltage drop of 0.3V, instead the 0.7V on silicon equivalents.
Title: Re: worlds smallest a2000 battery replacement
Post by: orange on April 24, 2008, 04:42:03 PM
that is not true, voltage drop is much less than 0.7V because current is tiny..
Title: Re: worlds smallest a2000 battery replacement
Post by: weirdami on May 05, 2008, 02:07:07 PM


Quote

Zac67 wrote:
Err - that's a standard CR2032 battery... What's making it so tiny?


Quote

weirdami wrote:
you need a macro photo of your fingertip to see it!
Title: Re: worlds smallest a2000 battery replacement
Post by: sniken on May 05, 2008, 03:10:00 PM
Quote

weirdami wrote:


Quote

Zac67 wrote:
Err - that's a standard CR2032 battery... What's making it so tiny?


Quote

weirdami wrote:
you need a macro photo of your fingertip to see it!


That's no finger tip
Title: Re: worlds smallest a2000 battery replacement
Post by: Nlandas on May 05, 2008, 03:49:50 PM
Quote

weirdami wrote:
Look (http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ih=012&category=3543&ssPageName=WDVW&item=220226671885&rd=1) how small this thing is. It's on ebay, I'm not selling it, but scroll down to the bottom and you'll see a picture of it up close. Talk about tiny! I mean, wow, so small you need a macro photo of your fingertip to see it!


The photo does indeed make it look small but it's a standard CR2032 battery and you can see in the photos about it that it takes most of the area that the old battery covered.   :-D

They are a cool solution though and I've never seen one leak and I've worked on well over a thousand machines with them in it.

-Nyle