Replacing battery with Lithium Ion

[Marcb]

Hi,

Just curious, I've bought two of these on ebay for my 2000 & 3000 and haven't got around to installing them yet:

 Ebay Link

I've just noticed that the same seller also has for sale an Amiga 4000 lithium Ion battery replacement...


Why would there be two different ones, is there a difference between the a2000/a3000 and a/4000 batteries?

Marcb

[djbase]

No, its everywhere the same. Just a Lithium coin, a socket and a diode - very simple.

You can also get one of these (they look better and are cheaper).  :-D

[sim085]

DJBase wrote:
You can also get one of these (they look better and are cheaper).  :-D

(Sorry to hijack this thread .. a little)

From where can I buy one of those? From that same site? (Sorry I do not know German).

Regards,
Sim085

[bloodline]

sim085 wrote:

DJBase wrote:
You can also get one of these (they look better and are cheaper).  :-D

(Sorry to hijack this thread .. a little)

From where can I buy one of those? From that same site? (Sorry I do not know German).

Good excuse to learn, no? :-D

[quarkx]

I also would be interested, AmigaKit just sells the holders, not the diode kit, Is there a translation of that page for us poor English only speaking people?
Now where is that linkwords German floppy I got the other day?....

[Marcb]

Thanks for the reply and link!

Indeed does look good, how would I buy one of those in the link? ( My German to English dictionary can't cope! :-) )


I wonder why he has listed them separately though?
Perhaps he did it to keep the listing size down as he includes pics on how to install them in the listing...  

[djbase]

Just send me a PM and you can get some.  ;-)

[Zac67]

Just for completeness: lithium coin battery != lithium ion rechargeable battery - it's neither 'ion' nor rechargeable.

The lithum hack is very simple: you solder a germanium diode (just about any type) in line with the coin battery in order to prevent recharging the (non-rechargeable) battery. The only thing to worry about is to point the striped (cathode) end of the diode away from the + contact of the battery (or towards the - contact) and you're set.

CR2032 battery: 50c
battery clip: 1.20€ (salvaged from an old PC mobo: 0c)
germanium diode: 30c

[beller]

That's exactly what the gentleman on EBay is selling, a modified coin battery holder with a diode installed.  I ordered one and installed it last week in my A3000D.  I haven't had a clock since I got the machine 3 years ago!

I'm very happy to give him a little something extra for packaging this.  I wasn't brave enough to try it on my own!

Bob

[dannyp1]

What happens if you do this without the diode?  What happens to the non rechargeable battery when it is charged.  I'm just asking because it seems like I remember many people in my old users group just using the coin battery and the holder.  No diode.  I don't remember anyone's battery or computer blowing up or anything.  What damage is done?  Does it just shorten the batteries life?

Dan

[djbase]

If you charge a non-chargeable battery it will explode.

[dannyp1]

DJBase said:      "it will explode."

So I am assuming there are many documented cases of batteries exploding inside Amiga computers?  When people buy C & D battery chargers and put non-rechargeable batteries in them are they exploding also?

[Gavilan]

Is it that hard to make this hack?
I mean..im ZERO with soldering iron and all technical stuff, but with a diagram, or a simple picture of what/where do i have to solder...would it be possible even for a dummy like me to actually bring clock again to my Big Box Amigas?

Sebastian

[Zac67]

So I am assuming there are many documented cases of batteries exploding inside Amiga computers?  When people buy C & D battery chargers and put non-rechargeable batteries in them are they exploding also?

Not that I know of exploded non-rechargeables in Amigas, but they do explode when charged (tried that with AAs myself). If the charging current is low enough you might get away with a dead battery instead of a burst one.

Anyway, I prefer replacing the battery with a rechargeable NiMH barrel-shaped one or 3 AAs in a clip, but putting them out of harm's way with a bit of cabling.

[djbase]

Gavilan wrote:
Is it that hard to make this hack?
I mean..im ZERO with soldering iron and all technical stuff, but with a diagram, or a simple picture of what/where do i have to solder...would it be possible even for a dummy like me to actually bring clock again to my Big Box Amigas?

Sebastian

http://www.amigaworld.de/workshops/lithium-knopfzellen/