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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Sun, 14 Jul 2002 14:56:30 GMT
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Original-From:
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Laura O'Grady <l.ogrady@^NoMoreSpam^sympatico.ca>
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Viewed:
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672 times
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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.
For those who would like more information comparing the various types, I
found the FAQs at http://www.greenbatteries.com/ to be informative as well
as info at http://www.thomas-distributing.com/maha-educate-batteries.htm
and http://www.steves-digicams.com/nimh_batteries.html
Laura
At 10:54 AM 7/13/2002 -0500, Steve Baker wrote:
>
>
> Laura O'Grady wrote:
> > Does anyone have any comments about using rechargeable batteries in the
> > RCX? Has anyone had any bad experiences with this? Can anyone recommend
> > whether NiMH is better or worse than NiCd? Thanks.
>
> Definitely use NiMH's.
>
> NiCd's are a problem - they only generate 1.2 volts instead of the usual
> 1.5 of disposable batteries - and I've found that this *sometimes* causes
> problems with the RCX. I'm not sure exactly what the situations where it
> fails are though - maybe room temperature, load, how well charged they are?
> Anyway - I know quite a few people have reported problems too - so it's not
> just me.
>
> NiMH's work fine though - I use them a lot.
>
> ----------------------------- Steve Baker -------------------------------
> Mail : <sjbaker1@airmail.net> WorkMail: <sjbaker@link.com>
> URLs : http://www.sjbaker.org
> http://plib.sf.net http://tuxaqfh.sf.net http://tuxkart.sf.net
> http://prettypoly.sf.net http://freeglut.sf.net
> http://toobular.sf.net http://lodestone.sf.net
>
>
>
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Message has 1 Reply:
 | | Re: Rechargeable batteries and the RCX
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| (...) 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 (...) (22 years ago, 15-Jul-02, to lugnet.robotics)
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Message is in Reply To:
| | Rechargeable batteries and the RCX
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| Does anyone have any comments about using rechargeable batteries in the RCX? Has anyone had any bad experiences with this? Can anyone recommend whether NiMH is better or worse than NiCd? Thanks. Laura (22 years ago, 12-Jul-02, to lugnet.robotics)
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