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Re: Old batteries - or ... ?



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On Friday 20 September 2002 03:29 am, Karl E. Jorgensen wrote:
> [Although laptop-related, it is not debian-specific. But you're a
> helpful lot, aren't you? :-) ]
>
> I'm suspecting that the batteries in my laptop are getting old - or that
> something is buggy in hardware / bios.
>
> Reason: The batteries charge in a odd way: They will charge (eventually)
> to anything between 35% and 65% (40 in the example below) and then
> *suddenly* become 100% full !?
>
> Discharging is a bit odd too - they will go seemingly linearly from 100%
> to anything between 80% and 50% (~70% in example below) and then drop
> quite steeply.

Greetings Jorgensen:

The batteries could be both getting old, and also needing a complete cycling 
to reset the values.  In my bios, I have a special *mode* that completely 
discharges the batteries, then charges them completely and *learns* the 
cycle, then repeats the procedure.  Yet as batteries age, they will give less 
service life.

A problem that I see is that my unit doesn't leave any cool down time for 
the batteries.  It would be much better if it would let them cool for 1/2 
hour and then charge them up.

If you don't have this feature, then perhaps see if there is a local shop 
that has a stand alone smart charger that could do it for you.  I used to 
take my two-way radio batteries in to a place here that I found quite 
helpful.  After they were cycled, they were back to at least 85% of life 
which bought me another year before I had to retire them.

gl

- -- 

Jaye Inabnit\ARS ke6sls\/A GNU-Debian linux user\/ http://www.qsl.net/ke6sls
If it's stupid, but works, it ain't stupid. I SHOUT JUST FOR FUN.
Free software, in a free world, for a free spirit. Please Support freedom!

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