Aero battery-status
With the utility from Compaq softpaq SP0993 it is possible
to determine the battery level in over 30 steps.
I have written down the values during a complete discharge and have drawn a little
diagram. - 96kB GIF
As one can see it looks the same as the voltage-curve of the Battery
itself.
I have found out that dots of the Battery-level popup-feature follows those
values:
Dots shown: |
0 | 1 | 2 | 3 | 4 | 5 |
CHARGE.COM - level: |
...131 | 132..136 | 137..141 | 142 | 143,144 | 145... |
A fully charged battery has about 1,45V and the charge-level is about 166.
At a level of 130 the aero goes to hibernation, the battery should then be at
a voltage level of 1,0V or a little higher.
So I think the real voltage of the battery could be computed with this formula:
Ucell = 1.0V + (level - 130) * (1,45V-1,0V) / (166-130)
It is also possible to write a little program that computes the time it will
take until the battery is empty, according to the current amount of power needed.