Subject:
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Re: Pictures of RCX on external batteries
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Newsgroups:
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lugnet.robotics
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Date:
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Thu, 18 Nov 1999 22:44:44 GMT
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Viewed:
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873 times
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In lugnet.robotics, Arjen Gerstel writes:
>
> I'm already using a set-up as you described. I suppose this is what you
> mean:
>
> http://web.inter.nl.net/users/agerstel/battery_pack.jpg
>
> http://web.inter.nl.net/users/agerstel/batteries_rcx.jpg
>
> http://web.inter.nl.net/users/agerstel/NiMH_batteries_on_car.jpg
>
> As you can see, I'm using 8 NiMH cells. This gives approx 9.6 volts. The
> motors actually run slightly faster than on regular alkaline batteries (and
> a lot cheaper...).
Yep! That's the beastie! Although in my mind's eye I was using sub-C cells, as
I've got plenty of them. And I was soldering them together, as I've done it
before. But we can do all sorts of things in our minds' eyes, no? :)
It occurs to me that I should pass on a bit of info about NiMH cells. We're
finding in my R/C club that they DO have some memory effect, contrary to the
current wisdom about these cells. They're just not nearly as subject to it as
NiCd's are. To keep from inducing memory in NiMH's, discharge them as you would
a NiCd, but don't store them completely flat. If you are storing them for
any length of time, they must have a small amount of charge on them.
Not certain why, but that's the most up-to-date high-end cell/battery
maintenance info I've got.
K.M.
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Message is in Reply To:
 | | Pictures of RCX on external batteries
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| Kevin, I'm already using a set-up as you described. I suppose this is what you mean: (URL) you can see, I'm using 8 NiMH cells. This gives approx 9.6 volts. The motors actually run slightly faster than on regular alkaline batteries (and a lot (...) (25 years ago, 17-Nov-99, to lugnet.robotics)
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