[SPARCbook] SPARCbook

[Sunder]

If that doesn't do the trick, and you're inclined/skilled you might want
to take a trip down to your local Radio Shack (or wherever you can) and
get 10 NiNH rechargeable AA batteries, then crack open the Tadpole pack
and replace the cells.

There's supposed to be a temperature sensor in there to prevent
overcharging, be careful not to damage this when you swap the batteries
out.  Likely it's just a thermoresistor.

BTW: deep discharning and recharging does work quite well.  I've had a
battery pack that would issue first warnings at 75% of the battery level,
and second warnings after 64%.  About five charge/deep discharge cycles, I
could bring it down to near 5% for the first warning!

I would suggest that you first shut down your Tadpole, remove any PCMCIA
cards, and the hard drive (to prevent cooking them,) and then turning the
Tadpole on.  

Leave it at the open boot prompt, then let it discharge the battery until
the Tadpole shuts off.  Once off, apply the power supply, and let it
charge all the way to 100%.  Remove the power supply and repeat this
whole thing about five times.

The most I managed to get out of a Tadpole (with PCMCIA and hard drives,
and Solaris running) is almost an hour.


----------------------Kaos-Keraunos-Kybernetos---------------------------
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--------_sunder_ at _sunder_._net_------- http://www.sunder.net ------------

On Mon, 29 May 2000, Jonathan Eisch wrote:

> do you have the power management patches installed?
> 
> if you do, then try dischargeing it all the way. then recharge all the
> way.  do that about five times, and it should start preforming better.
> 
> -Jonathan
> 
> Bill Shields wrote:
> > 
> >     I jsut aquired a SPARCBook 3GX.
> > 
> >       The problem is that the battery only lasts about 15 minutes after
> > being fully charged.
> > 
> >     Is there a source for these batteries that will not cost an arm or a
> > leg?
> > 
> > Bill
> > 
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