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Subject: Re: TP750 Battery
From: Don Whiteside (dwhite@shadow.net)
Date: Mon Jul 29 1996 - 18:38:24 EDT
At 10:15 AM 7/29/96 EDT, Robert Dewar wrote:
>The charge cycle quite likely decreases battery life, but for many people
>it is important to be sure that the battery is fully charged when they
>have been using the machine, even if this costs battery life, so this is
>a quite deliberate decision by IBM, not an error.
No, it's an error. Many other devices using identical battery technology
utilize a trickle charge to maintain a charge once it's fully recharged. The
flaw in the 750 (and possibly other later models) is that they charge and
then TOTALLY STOP CHARGING, allowing the battery to gradually drop down to
aprox 90%, then charge it up again. Nobody is suggesting that the charging
system NOT charge the battery.
>If you are concerned about prolonging battery life, then you should not
>store the battery in your machine while you are using it (I am a little
>curious as to why you *do* store the battery in your machine if you
>know it is troublesome, and have already destroyed batteries this way).
While I concur that this is the way to deal with this problem, it's totally
idiotic that I should have to remove the battery to prevent IBM's shoddy
engineering from costing me $150. My $200 cell phone and $200 car mount has
more intelligent technology in it. Also, leaving the battery in prevents
brief power flickers from rebooting my machine, a real concern here in
Florida during the storm season.
Donald Alan Whiteside, who will vote for Dick Lamm if he'll give me his
daughter Heather's phone number. (Smart, cute AND socially conscious - woohoo!)
"Penis ownership is not a prerequisite to technological competence" - Me.
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