Subject:
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Re: External supply for RCX
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Newsgroups:
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lugnet.robotics
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Date:
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Mon, 4 Sep 2000 09:08:26 GMT
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Viewed:
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829 times
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Steve Baker <lego-robotics@crynwr.com> wrote:
> "David C. Pyatt" wrote:
>
> > I've been using rechargable Eveready Renewals in one of my RCX's for • quite a
> > few months without any problems... I think it is the lower 1.2 volt • compared
> > to the 1.5V of a standard battery that they are concerned with.
>
> Yes - but alkaline batteries drop gradually in voltage throughout
> their lives - by the time they run out, their volts are below 1.2.
>
> NiCd's on the other hand stay at 1.2 volts and dry up much more
> suddenly...over just seconds sometimes.
>
> Dunno about those Eveready Renewals though - those aren't NiCd
> are they? I vaguely recollect them being some wierd "rechargable
> alkaline" technology - so they may be 1.5 volts.
>
> Anyway, most equipment that has to run on alkalines can cope with
> the slightly lower voltages that NiCd can supply - because it's
> the same as running on nearly expired alkalines.
I regularely run my RCXs on NiMH Sanyo rechargable batteries and they works
very well. Voltage is lower, but they're much more current capable then the
alkaline technology ones.
Ciao
Mario
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Message has 1 Reply:
 | | Re: External supply for RCX
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| (...) The only issue with the standard rechargeable ones is if the motor(s) short the resulting current drain could damage something. I'm sure we've all shorted a rechargeable and had the rubber wire casings melt off from the 'heated exchange'.. (...) (24 years ago, 5-Sep-00, to lugnet.robotics)
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Message is in Reply To:
| | Re: External supply for RCX
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| (...) Yes - but alkaline batteries drop gradually in voltage throughout their lives - by the time they run out, their volts are below 1.2. NiCd's on the other hand stay at 1.2 volts and dry up much more suddenly...over just seconds sometimes. Dunno (...) (24 years ago, 1-Sep-00, to lugnet.robotics)
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