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Unread 15-12-2015, 20:41
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Re: Read Battery Charger status from a device.

Quote:
Originally Posted by dirtbikerxz View Post
Or is there maybe a way that you could measure if its full or not based on and amperage reading? Or would a amp reader also just show the amp output from the charger. It probably would. (in case you guys haven't realized yet, electricity isn't really my thing )

I could just use a volt reader like this : https://www.adafruit.com/products/460 but so no need for a tablet interface, but it wont be effective, since it would just show the volt output of the charger right?
I can't say about the amps, but you could do some testing with a clip-on ammeter to see if there's a correlation.

I was thinking of using something like what you linked. Make sure whatever you use is rated high enough for the current these batteries can produce. Maybe mount a button next to the output displays that says "PUSH TO TAKE READING". The button would be wired to a relay to control the charger. Then the charging is only interrupted when you want a reading. The button would also need to switch on some kind of load. It wouldn't allow for continuous reading, but if that wasn't a feature you needed, it should be a fine way to go.
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