Subject:
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Re: Rechargeable batteries and the RCX
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Newsgroups:
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lugnet.robotics
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Date:
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Mon, 15 Jul 2002 08:41:14 GMT
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Original-From:
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Steve Baker <sjbaker1@airmailSAYNOTOSPAM.net>
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Reply-To:
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[sjbaker1@airmail.]nomorespam[net]
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Viewed:
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639 times
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Laura O'Grady wrote:
> Thanks to all that responded to my questions regarding batteries. I was
> concerned about a post I read in rec.toys.lego in which someone reported
> problems after switching to alkaline rechargeable batteries (the post can
> be seen at the following URL):
>
> http://groups.google.ca/groups?q=mindstorms+rechargeable+batteries&hl=en&lr=
> &ie=UTF-8&selm=QztA7.188976%24bY5.891564%40news-server.bigpond.net.au&rnum=1
>
> The problem reported seems to be associated with rechargeable alkalines
> leaking at the terminals, rather than rechargeable batteries in general.
Well, all Alkaline batteries (rechargeable or not) do this if left in
equipment in a discharged state.
Both NiMH and rechargeable alkalines have a limited life and have to be
discarded sooner or later. Some of the older ones claimed to be good for
only 100 charge/discharge cycles - and in practice would sometimes only
last for 20 or 30 cycles. The more modern ones claim much longer lives,
but this leakage phenomenon is still a problem if they are left discharged.
I always recharge mine after use and I havn't seen any of these problems.
NiCd's (for all that Cadmium is bad for the environment) do have a (potentially)
infinite life - so in principle they never need to be discarded and as a result
could be said to be better for the environment than the alternatives. However,
because they only generate 1.2 volts, they are not suitable for a lot of modern
equipment so they are probably on the way out.
----------------------------- Steve Baker -------------------------------
Mail : <sjbaker1@airmail.net> WorkMail: <sjbaker@link.com>
URLs : http://www.sjbaker.org
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Message is in Reply To:
 | | Re: Rechargeable batteries and the RCX
|
| Thanks to all that responded to my questions regarding batteries. I was concerned about a post I read in rec.toys.lego in which someone reported problems after switching to alkaline rechargeable batteries (the post can be seen at the following URL): (...) (22 years ago, 14-Jul-02, to lugnet.robotics)
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