Subject:
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Re: Battery Capacity
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Mon, 7 Feb 2000 19:40:11 GMT
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Original-From:
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William Bain <montanawill@&nospam&yahoo.com>
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Viewed:
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1461 times
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I suppose that maybe your NiCd cells are just nearing the end
of their useful life. Either that, or you have a wiring problem
somewhere in the power circuit. Also, it's generally not a good
idea to mix different types of cells (different capacities) in
one battery pack.
I power my HB with an 8-AA-cell, 500 mAH Panasonic battery,
soldered together by Digikey (I think it's the one listed in
the HB Tech Ref) and it has no trouble at all driving a couple
Lego motors. My robot is pretty heavy, too, with sonar, a color
video camera, and a video transmitter.
However, I'm using the Lego gear motors, which may be more
efficient than the old style of Lego motor, and I gear them
down even more. Have you tried gearing your motors down? Maybe
you aren't getting enough torque and that's causing your motors
to stall.
I really recommend getting the soldered batteries from Digikey.
Using a battery holder with single cells never worked very
reliably for me. You can get soldered packs made up of 800 mAH
cells now, too. Best of luck!
-- Will
--- glashan <lynneg@mweb.co.za> wrote:
> Hi all,
>
> Ive been having problems with my bots supply for a while now.
> The problem is
> that the motors (LEGO 9v ) seem to be drawing too much
> current. whenever my
> bot changes direction or trys to accellerate from a
> standstill, the board
> resets. Im using a mixture of 650 and 600 mAh Nicad's and ive
> tried charging
> them both with the HB charger and a normal charger and
> nothing seems to
> help.
>
> Do I need Higher Capacity Nicads or may it be my motors
> Any help would be greatly appriciated.
>
> Thanks
> Ross
>
>
>
=====
Any sufficiently advanced technology
is indistinguishable from magic.
-- Arthur C. Clark
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Message has 1 Reply:
 | | Re: Battery Capacity
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| (...) I am using 8-NiMH-AA-cells, 1100 mAh each, without any problems. For German Handyboard users: www.reichelt.de sells either single sells or a soldered pack of batteries. Actually you can even get upto 1700 mAh-cells (no experience with those (...) (25 years ago, 8-Feb-00, to lugnet.robotics.handyboard)
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