Re: [701]Final word on power/charging...

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From: John H. Kim (kim_at_stormhaven.org)
Date: Tue Oct 06 1998 - 11:48:02 EDT


On Tue, 6 Oct 1998, Slip wrote:
> Hey there,
> I know this is a really over-abused topic, but this charging bit is
> getting me confused. I'v been told that with NiMH, there's the 'memory
> affect', but that with the 701 'advanced NiMH', this isn't true. Taking the
> later into consideration, what's the best way to get a full, deep charge?

I believe the manual says to avoid completely discharging the
battery.

> Reason I ask is that if I take my battery all the way down, and then
> re-charge it, the time on FN-F2 is decreased by ~5mins! This is when the

That is why. :-)

> 3:05 if I was lucky. One other small quirk-supposidly I should have around
> 1min after the main battery is fully discharged for the system to go into
> suspend and so that I can get to an Ac source, right? When I'm working,
> even in Dos, I'll get the warning beep, but then my system just shuts down.
> I have never had the warning beeps come before-hand. Defeats the purpos in
> my mind.

A lot of 701 owners had this problem. Another common problem
was the battery cutting out when the Fn-F2 meter showed
10%-20% remaining.

Anyhow, don't worry about any sort of memory effect with the
701's NiMH battery. I had mine stuck in the machine, on AC
24/7 for nearly two years. When I sold it last week, that
battery still held about 2.5 hours of charge.

With a normal NiMH, you'd have to deep-discharge it from time
to time to condition it, and prevent its capacity from
dropping too quickly. Doing what I did would've kiled it in a
couple months (I did that to a couple 750 NiMHs :-).

--
John H. Kim
kim_at_stormhaven.org


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