Re: High-Capacity NiCad Batteries

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From: Dean T. Miller (dtmiller@dsmnet.com)
Date: Wed Feb 12 1997 - 20:28:49 EST


Hi Mike,

At 03:58 PM 2/12/97 -0600, Mike McShan wrote:
>
>I have used the rechargable alkalines and was not overly impressed. After
>10 charges, their performance rapidly degraded, and after about 20 charges,
>they were usually worthless. I was using them in an Apple Newton that drew
>about 800 mA, and these batteries were definitely poorer in performance
>than ordinary alkalines or nicads - more reboots and system instabilities.
>I think that rechargable alkalines might prove to be a poor choice for a
>high current device like a transmitter.

You're most likely right. I haven't used them in critical applications.
Just flashlights, remotes and a few of the kids portable cassette players.
However,
I do have at least one cell that has been in the charger over 50 times. I've
also had one or two that were bad after 2-3 charges (I sent them back and got
free replacements plus postage plus extra cells).

However, I certainly haven't tested them for 'important' applications such as
transceivers. (I have had worse luck with NiCads over the years, though, than
with the rechargable alkalines.)

Dean -- from Des Moines (KB0ZDF)


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