Subject:
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Higher voltage for HB battery
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Sun, 9 Jan 2000 19:07:35 GMT
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Original-From:
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Will Bain <MONTANAWILL@YAHOO.stopspamCOM>
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Viewed:
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855 times
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I would like to know whether the HB can be used with a 12 V (ten AA
cell) NiCd battery instead of the standard 9.6 V (eight AA cell) NiCd
battery.
Specifically,
(1) Would the HB be damaged by the higher voltage,
(2) Would the HB function properly (e.g., could I still use Lego gear
motors), and
(3) Could I use a 14 or 15 V, 500 mA "wall wart" instead of the
standard 12 V, 500 mA adapter to charge the 12 V battery using the HB's
built-in charging circuitry (the two trickle charge modes and the ZAP
mode).
The reason that I would like to do this is that I have a video camera
and transmitter that requires 12 V, and I would like to avoid using
separate batteries (and especially separate charging circuits) for the
HB and the camera.
If anyone knows the answers, I would be grateful to hear about it.
Thanks in advance!
Sincerely,
-- Will Bain
=====
Any sufficiently advanced technology
is indistinguishable from magic.
-- Arthur C. Clark
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Message has 1 Reply:
 | | Re: Higher voltage for HB battery
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| I find that the ideal solution to this situation is to build a power system for the robot. Maxim, Linear Technology, and National each make very easy to use switching regulators that can provide highly efficient DC to DC conversion. Building a (...) (25 years ago, 9-Jan-00, to lugnet.robotics.handyboard)
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