Re: current power consumption
Am Mittwoch, 14. Juli 2004 19:58 schrieb Joerg Sommer:
> is it possible to get the current power consumtion from
> $ cat /proc/pmu/battery_0
> flags : 00000013
> charge : 3789
> max_charge : 3930
> current : 195
> voltage : 12650
> time rem. : 2603
> I've measured a power consumption of 24 Watt, but I don't know where to
> find this in values above. What are the units of the values above? Is
> charge and max_charge in Ah (Ampere hours) and voltage in mV? Why current
> is 0 if the battery is full? The laptop still consumes power.
The current is given in mA and voltage is given in mV. As I know charge has no
unit. It is an battery dependent value and changes a lot over lifetime.
Different batteries have different values. I don't think that it is the
/proc/pmu/batter_x only show the current in and out of the battery so you can
only calculate the power consumption in case of running on battery:
power = current/1000 * voltage/1000 [Watt].
Don't forget to add /proc/pmu/battery_1 in case you use two batteries.