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ancient laptop battery recharging orange 04-21-2008
Posted by orange on April 21, 2008, 6:21 am
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I bought this ancient laptop (Toshiba T2000SX) on flea market.
It uses two batteries (second one is for BIOS):
-pa8725u (14.4V 2.2AH NiMH) shows 0,45VDC
-XZ0072P09 (6V NiCad) shows 0VDC

They are dead, but I'd like to just try to recharge them. Of course
there is no
original AC power supply. So, can I use standard
AC/DC converter (1000mA max)? Or maybe the 9V NiMh recharger?
Should I just connect + to + , set voltage to 12VDC and let it charge
for a while?

Posted by BigJim on April 21, 2008, 12:00 pm
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 batteries that old my not even hold a charge and if they do it might be like
3%
>
> I bought this ancient laptop (Toshiba T2000SX) on flea market.
> It uses two batteries (second one is for BIOS):
> -pa8725u (14.4V 2.2AH NiMH) shows 0,45VDC
> -XZ0072P09 (6V NiCad) shows 0VDC
>
> They are dead, but I'd like to just try to recharge them. Of course
> there is no
> original AC power supply. So, can I use standard
> AC/DC converter (1000mA max)? Or maybe the 9V NiMh recharger?
> Should I just connect + to + , set voltage to 12VDC and let it charge
> for a while?


Posted by Barry Watzman on April 21, 2008, 11:57 pm
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Get a proper power supply. Should be cheap on E-Bay.

As for the batteries, they are going to be worthless unless you rebuild
them with new cells.


orange wrote:
> I bought this ancient laptop (Toshiba T2000SX) on flea market.
> It uses two batteries (second one is for BIOS):
> -pa8725u (14.4V 2.2AH NiMH) shows 0,45VDC
> -XZ0072P09 (6V NiCad) shows 0VDC
>
> They are dead, but I'd like to just try to recharge them. Of course
> there is no
> original AC power supply. So, can I use standard
> AC/DC converter (1000mA max)? Or maybe the 9V NiMh recharger?
> Should I just connect + to + , set voltage to 12VDC and let it charge
> for a while?

Posted by orange on April 22, 2008, 9:26 am
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thanks.. but, I'm not sure if its working at all..
I noticed a connector on side: 18VDC
It seems to have 4 pins but I don't have pinout :(
if I find it, can I try to run it with, say, 12VDC ATX PSU?

Posted by G.G.Willikers on April 22, 2008, 11:32 am
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orange wrote:
> thanks.. but, I'm not sure if its working at all..
> I noticed a connector on side: 18VDC
> It seems to have 4 pins but I don't have pinout :(
> if I find it, can I try to run it with, say, 12VDC ATX PSU?

http://www.bobjohnson.com/_store/Display_Products.asp?prodID=pa8727u

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