What Information Will Be Available From The Battery Chip, If There Is


Atako

Still Fresh
Joined
Oct 12, 2008
Messages
25
Hey!

Will there be informations available like voltage, current drain, temperature, etc... ?

Thanks!
Greets
 
I believe those three informations you mentioned are provided by the default power management Linux drivers with most standard batteries, so they should be available.
 
Well, we had a discussion about what should happen when the battery is low on charge, so we know that is available.

There is support for temperature in the chipset, but I don't know if Michael connected that part up or just connected it to an appropriate resistor instead. Depends on the battery/charge circuit they decided on.

I doubt we'll get stuff like current consumption inless you decide to throw a multimeter in there, connected to the power/battery terminals.
 
As the battery provides current charge and total charge, it's possible to calculate the current consumption even if it's not provided, although the results will be a little inaccurate.
 
Not really. You might be able to get a vague idea of discharge rate averaged over a large period, but instantaneous current consumption figures aren't possible without additional hardware.

At best you'll be able to read battery voltage, which has a non-linear relationship to charge level, which has a non-linear relationship to the current draw. In other words, just use a damn multimeter ;)
 
You can only really say "This much of the battery was used in this amount of time, so that equates to roughly this amount of consumption.". It's a very rough approximation, so you would have to do it several times and average those results (and of course not do anything different on the device between those tests).

Much much easier to just use a multimeter, or hookup a PSU to the device which gives current consumption figures (such as most bench psu's).
 
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