Subject:
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accu pack with rcx
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Newsgroups:
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lugnet.robotics
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Date:
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Fri, 30 Nov 2001 12:04:13 GMT
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Original-From:
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Mathias Uhr <uhr@mathias!AvoidSpam!.net>
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Reply-To:
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uhr@mathiasSTOPSPAM.net
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Viewed:
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456 times
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hi list!
did anyone ever tried to attach an accu pack to the
rcx - in addition to the batteries inside the rcx?
my idea is to add a 9.6v (8 cells nicd) rc-accu to a
robot which should act indepentently for a longer time.
i thought about leaving normal alcaline batteries in the
rcx and wire the accu in parallel with them.
because of the higher voltage of the accu, it would
"run out" faster than the normal batteries, which them-
selves would still grant a basic voltage to avoid memory
loss.
the program could detect the drop of voltage and -
presuming that the accu is empty - driving the robot
to a recharging station.
(pretty though task, i know...)
now some questions:
- is it possible to run the rcx on 9.6v without damage?
- are my "physical thoughts" correct or would the normal
batteries be consumed as well in operation?
- would it be possible to recharge the accu while connected
to the rcx and the normal batteries in it?
- according to the spirit ocx docu (pbrick.pdf), measuring
the battery level is only possible in immediate mode,
not in a program. is this true and if yes, is there a way
around this (maybe with legos)?
any thoughts greatly appreciated!
many greetings and happy programming
mat
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Message has 2 Replies:
 | | Re: accu pack with rcx
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| (...) Absolutely. The socket on the back of the RCX (for use with an AC adapter) is labeled for 9 to 12 volts, AC or DC. - Jacob (23 years ago, 30-Nov-01, to lugnet.robotics)
| | | Re: accu pack with rcx
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| Hello Mathias, (...) I am not sure whether the alkaline batteries will like the external voltage applied to them. If not, your RCX is in immediate danger, because they may explode or leak. Trying to charge the accumulators with the alkaline (...) (23 years ago, 1-Dec-01, to lugnet.robotics)
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