Subject:
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Re: Charging batteries
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Newsgroups:
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lugnet.robotics
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Date:
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Tue, 20 Oct 1998 15:06:35 GMT
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Viewed:
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2203 times
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moz wrote in message ...
> The other consensus is that the easiest way to wreck nicads is to
> overcharge them. You must switch to C/40 or so after charging to between
> 1.4 and 1.6 C, otherwise you will cause non-repairable damage. The
> easiest way to do this is IMO a timer switch. Set it for 15 hours and go
> home for the day.
This only works if you are discharging your NiCads to close to dead. If you
are topping them off every night then a timer based charger isn't a good
idea. Your NiCads will be fully charged pretty quickly, and then will spend
much of that 15 hours overheating.
If you use NiCads heavily then I think that smart chargers really do make
sense. Its too bad that they are so hard to find though. The only one that
I know of and use for standard size batteries is made by Olympus for AA NiMH
cells. Its $50 w/ 4 cells (big investment, but might be worth it if you use
a lot of batteries).
Finally, the Mindstorms set with the stock motors seems to last a long time
with alkaline cells. Unless you use your Mindstorms 24x7 (in which case you
should probably buy an AC adapter) it might not make sense to go to
rechargables.
alex
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Message is in Reply To:
 | | Re: Charging batteries
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| L. M. Lloyd <lee@advfilms.com> wrote (...) OK, I've done a web search on this, and the consensus seems to be "not on this planet". The conditions for the original study were on a satellite, with absolutely regular charge/discharge cycles, no gravity (...) (26 years ago, 20-Oct-98, to lugnet.robotics)
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