Filip,
If your application doesn't show in the phone's battery usage list, I
believe this means that it uses so little that its usage comes out as
zero due to limited measurement precision. In that case, you have
nothing to worry about.
You can test if this is the case by adding wake locks
Kostya,
I'm pretty sure it shows up, but this kind of measurement is really not
precise - I need time-based values, ie the application consumed 2,5% of
total battery power after 1 hour of running, you can't really take any
values from the application list, because they are influenced by other
Filip,
The system panel does show battery consumed by the WiFi radio and the
display as separate entities.
I also think if you allow interaction while doing your test, then it's
not really clear what you are measuring (at least not clear to me).
A clean device (no 3rd party programs,
Filip, later today I will link you all the work that I've done and the
code. But basically what I wanted was the ability to see the power
draw thru the battery at any time to compare different tasks that the
phone does and its power consumption.
So I wrote an app that samples the battery's
Hi Roger,
Could you also send it to the list ?
Cheers,
Emre
Date: Fri, 21 Jan 2011 12:59:57 -0800
Subject: [android-developers] Re: Battery usage measurements
From: rogerpodac...@gmail.com
To: android-developers@googlegroups.com
Filip, later today I will link you all the work
so all i really did is figure out how to call the read and write
function of the fuel gauge chip inside the nexus one battery, so that
on command you can read or write to any of the 80 register addresses.
lot's of interesting other things we are doing with this, but not
really related. but this
there are ways to do what you want, at least on the nexus one, with
just the battery, its driver, and the IC fuel gauge inside the
battery. a recent project i've been playing with does just that, but
it involved root access which is probably not what this forum is all
about. nonetheless, for the
Mark, that's exactly what I wanted to avoid, I'm not really sure someone
will find that money for me :)
Prakash, yes, but you can't get that data programmatically, at least I
didn't figure out how.
Roger, thanks, I considered looking for some solutions involving rooting the
phone, but since it
Certainly any competent hardware hacker could lash together a testbed
to measure battery draw. Of course the phone would be wired to a
workbench, and the data collected would have to be time-correlated
with the testing activities, but not rocket science.
On Jan 20, 4:00 pm, Filip Havlicek
I have to return the device unharmed and you know what are those hardware
guys doing with our precious toys :) They are good in building stuff, but
not returning it to its previous state :)
2011/1/20 DanH danhi...@ieee.org
Certainly any competent hardware hacker could lash together a testbed
Should not be at all hard to use, eg, a piece of wood of the right
shape to fit into the battery compartment, to hold contacts in place.
Phone could be supplied from an external power source or the battery,
with some sort of jury-rigged holder. Shouldn't require modifying the
phone in any way.
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