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Unread 19-11-2011, 01:03
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Re: Testing Motors, Jags, Batteries

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Originally Posted by Ether View Post
Is there a technical paper somewhere discussing how it computes state of charge and overall health?


Ether,

I'm unsure, but if Mike Copioli is online/when he gets online, he'll surely chime in!

-RC
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Unread 21-11-2011, 19:28
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Re: Testing Motors, Jags, Batteries

Avan,

Consider using your cRio, a couple spikes, and perhaps some 100 watt lightbulbs to create your own battery tester. If you draw down the power quickly enough, the power consumption of the cRio and spikes will be fairly inconsequential.

That would be a very neat project to consider. Perhaps you could do it and release the source code etc. Remember, the voltage is already recorded and sent to the driver station, so the capability to measure voltage and map it is already there!
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Unread 21-11-2011, 19:57
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Re: Testing Motors, Jags, Batteries

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Originally Posted by Tom Line View Post
and perhaps some 100 watt lightbulbs to create your own battery tester
If you mean 120v household 100 watt bulbs, how many amps do you think a 100 watt bulb would draw if connected to a 12v battery?


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Unread 21-11-2011, 21:40
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Re: Testing Motors, Jags, Batteries

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Originally Posted by Ether View Post
If you mean 120v household 100 watt bulbs, how many amps do you think a 100 watt bulb would draw if connected to a 12v battery?

Actually, I was thinking about a 12V 100 Watt bulb. P=VI, so it should draw around 8 amps, correct? They are fairly common and inexpensive online. For instance:
http://www.amazon.com/Light-Bulb-12V.../dp/B000KKX44Y
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Unread 21-11-2011, 23:15
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Re: Testing Motors, Jags, Batteries

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Originally Posted by Tom Line View Post
Actually, I was thinking about a 12V 100 Watt bulb. P=VI, so it should draw around 8 amps, correct?
Yes, thanks for clarifying.


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