From: Gordan Flego (gordan.flego_at_b4b.hr)
Date: Wed Nov 21 2001 - 02:59:12 EST
Hello,
I have problem that my Li-Ion battery on 770Z drops from 95% to 5%
momentarily. And this started to happen few day ago. I am charging and
discharging battery constantly hoping that this will change situation, but
battery behaviour is the same.
I am considering to purchase new battery and evaluating independent
manufacturers vs. IBM original battery.
Do you have experience with other battery manufacturers?
Or, can I repair battery somehow with "proper" battery charging technique?
TIA
Gordan
> -----Original Message-----
> From: jberry_at_islandnet.com [mailto:jberry_at_islandnet.com]
> Sent: 20. studeni 2001 23:49
> To: thinkpad_at_cs.utk.edu
> Subject: Re: "Optimal" Battery Charging Technique?
>
>
> A distinction needs to be made between the various battery
> types:
> NiCd
> NiMH
> Li-Ion
>
> and then for each type there are varying levels of smarts. For
> example, the Sony InfoLithium may happily tolerate treatment
> that their predecessors could not. For example, the 701C
> batteries (both the Cd and MH) supposedly had smarts inside
> the battery that made earlier treatment methods obsolete.
>
> For instance, completely discharging a 701C battery would
> shorten its maximum charge by about 2 minutes.
>
> Incidentally, following up a separate discussion, the 701C
> battery would often go linearly from 100% to say 38%, but then
> to 0% in a couple of seconds. This is a problem that IBM has
> had for many years, over many different battery technologies.
>
> Personally, I do nothing to condition my batteries and run from
> AC whenever possible. It's the line of least resistance.
> YMMV.
>
> --
> cheers
> Jonathan Berry
> http://www.islandnet.com/~jberry/ to know more than you want
>
This archive was generated by hypermail 2.1.3 : Thu Jan 23 2003 - 09:57:48 EST