Subject:
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Re: what batteries
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Newsgroups:
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lugnet.robotics
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Date:
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Wed, 21 Dec 2005 21:59:24 GMT
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Viewed:
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1555 times
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In lugnet.robotics, Peter Loron peterl@standingwave.org wrote:
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I’ve had very good luck using NiMH AA batteries in my RCX. I never ran a
set of alkalines out in mine, so I cannot compare run times.
However, a set of alkalines would need to last hundreds of times longer
than a set of NiMH cells to be cheaper (not to mention better for the
environemnt).
I would absolutely recommend investing in NiMH cells and chargers. Based
on the cost of NiMHs+chargers and top brand (Duracell, etc) alkalines
here in the US, you start saving money after the 3rd or 4th cycle...and
NiMHs can typically be recharged hundreds of times.
-Pete
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I mostly agree with your comparison. But NiMH has one major drawback: they power
the RCX under 7.2V instead of 9V. The motors turn slower and deliver about half
mechanical power, see this chart:
Of course this is probably not a problem in most light weight robots...
Philo
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Message is in Reply To:
 | | Re: what batteries
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| I've had very good luck using NiMH AA batteries in my RCX. I never ran a set of alkalines out in mine, so I cannot compare run times. However, a set of alkalines would need to last hundreds of times longer than a set of NiMH cells to be cheaper (not (...) (19 years ago, 21-Dec-05, to lugnet.robotics)
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