Subject:
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Re: Battery voltage levels
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Newsgroups:
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lugnet.robotics.rcx
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Date:
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Mon, 7 Oct 2002 19:26:12 GMT
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Viewed:
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2630 times
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"Barney Hilken" <b.hilken@ntlworld.com> wrote in message
news:H3LyHy.76H@lugnet.com...
> I have two RCXs: a version 1.0 with external power connector, and a • version 2.0
> without. They consistently report different voltages on the same • batteries: the
> 2.0 puts all batteries about 0.3v higher. I want to know how much • variation
> there is between RCXs, so that I can calibrate the battery level indicator • on
> my application (Robot Controller) as well as I can.
>
> It would be helpful if as many people as possible could either reply or • email
> me with:
> 1. Your RCX version (as stamped on the top, NOT the firmware version)
> 2. Your battery type (Alkaline, NiMH, NiCd, etc.)
> 3. The voltage level reported on a new/fully charged set of batteries.
>
> You can check the voltage level in NQC with "x = BatteryLevel();" or in • Robot
> Controller by looking at the tooltip over the battery level indicator. I • don't
> know how to do it with alternative firmware.
There is going to be a difference between the 1.0's (with jack) and the
others. The 1.0's have an extra rectifier bridge that eats up about .3 volts
so that you can use either the built in batteries or the external jack. The
1.5+'s don't have this and therefore have less resistance in the circuits.
Dean
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Message has 1 Reply:
 | | Re: Battery voltage levels
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| (...) Thanks, this explains the difference. However, I'm still interested in the voltage levels people get. Does anyone use NiCads? Or rechargeable alkalines? Or something else I've not thought of? Barney. (22 years ago, 7-Oct-02, to lugnet.robotics.rcx)
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Message is in Reply To:
| | Battery voltage levels
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| I have two RCXs: a version 1.0 with external power connector, and a version 2.0 without. They consistently report different voltages on the same batteries: the 2.0 puts all batteries about 0.3v higher. I want to know how much variation there is (...) (22 years ago, 7-Oct-02, to lugnet.robotics.rcx)
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