Read Battery Charger status from a device.

[Daniel_LaFleur]

Originally Posted by dirtbikerxz

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?

Reading the amperage between the charger and the battery will only give you the charging current, which is usually limited (purposely) by the charger (to either 2 or 6 amps).

To measure the battery appropriately you'd want to measure the internal resistance of the battery. This can only be done when not charging the battery (you actually need to draw current from the battery)