Subject:
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Re: batteries? RCX/CYBERMASTER
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Newsgroups:
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lugnet.robotics
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Date:
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Wed, 24 May 2000 20:16:51 GMT
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Viewed:
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539 times
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Guido Heunen schreef:
>
> Hi
>
> I used a normal 9V battery instead of the six 1.5V ("six pack") and that
> works well if you hook up the 9V connection well. However, my radio tower
> does something but my cybermaster does not respond (no flashing of led when
> tower led flashes). So, well not enough power left in batteries I thought.
>
> I investigated the possibility to use rechargable batteries for my
> cybermaster. But, as you probably know, this is not possible since
> a 6 pack gives in total only 7.2 Volts. So, I thought, let's take a 9V
> rechargable. Unfortunatelly this battery holds 8.4V max.
>
> So can you tell me how you dealt with this? (I imagine that the power supply
> of the cybermaster resembles to the one of the RCX)
>
> I am thinking of using my train speed selector. It has a transformer (9v,
> unfortunatelly AC!) which goes into the speed selector of the train track.
> The output of this selector goes Normally to the tracks. I am planning to
> connect is to the cybermaster with the right polarity (of course). Did
> anyone try this? I remember that the train transformer can deliver more
> than 1 ampere. Won't this fry my cybermaster.
I am using Panasonic rechargables, available at Conrad Electronics in the
Netherlands, which work excellent for the RCX, Scout and Cybermaster. RCX
reports 8.4 volt power when fully charged. They're only a fraction more
expensive than normal rechargable batteries and they do have a lot more
capacity (1000 mAh, which is a lot for a penlite)
Hooking up any non-Lego powersource seems to me like asking for trouble in
case of the Cybermaster. It hasn't been designed with a external power
socket, so AC might (would?) kill it, and even DC seems tricky. Probably
doesn't have a voltage regulator so a cheap 9v DC converter, which
sometimes outputs almost 12v when under light load, might blow up
something.
--
Jan-Albert "Anvil" van Ree | http://www.nl.3dgamers.com
3D Sims Archive maintainer | http://www.3dgamers.com
Thrustmaster Resource Center | http://www.3dgamers.com/tmresourcecenter/
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Message has 1 Reply:
 | | Re: batteries? RCX/CYBERMASTER
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| (...) Here are some battery related: How many mA does the Tower Unit consume? How many mA does the Mobile Unit consume with both internal motors and the external active? Would a 7809 (and a couple of capacitors) stabilize the voltage safe enough? (...) (24 years ago, 17-Dec-00, to lugnet.robotics)
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Message is in Reply To:
| | batteries? RCX/CYBERMASTER
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| Hi I used a normal 9V battery instead of the six 1.5V ("six pack") and that works well if you hook up the 9V connection well. However, my radio tower does something but my cybermaster does not respond (no flashing of led when tower led flashes). So, (...) (24 years ago, 24-May-00, to lugnet.robotics)
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