Hi,
To me: The clearly most useful part of the bq27000 is the current
measurement. You get what seems to be a reasonably accurate measure of the
current flow to/from the battery updated every 25 s or so. It's much more
practical than an external ammeter: No need to open the case and fiddle
On Sun, Aug 02, 2009 at 11:17:48PM +0400, Paul Fertser wrote:
arne anka openm...@ginguppin.de writes:
the only time i ever heard of 140h suspend were the mail from daniel
willmann after he applied a hw fix to #1024.
Yes, exactly. But fixing is fairly trivial, the soldering part is in
On Mon, Aug 03, 2009 at 10:05:58AM +0200, Rafael Campos wrote:
Nice discussion on the follow mails, but i've a doubt
On Sun, Aug 2, 2009 at 7:07 PM, Paul Fertser fercer...@gmail.com wrote:
Q: But why doesn't it ever stop charging on my device?
A: The GSM modem is connected directly to the
On Sun, Aug 02, 2009 at 09:20:39PM +0200, Michal Brzozowski wrote:
2009/8/2 Paul Fertser fercer...@gmail.com
With GSM on in suspend it should last for 140 hrs and with off it
should be even more.
Really? Isn't that with deep sleep on?
Yes. With GSM off, approximately 8 mA is drawn and
On Mon, Aug 03, 2009 at 01:46:26AM +0800, Wolfgang Spraul wrote:
How are people really using the Coulomb counter in gta02?
Theoretically I would think that it provides far superior power measurement
options for actual software development, just as you write.
For example when playing with power
1) Find somewhere to buy a 10 uF SMD capacitor small enough. E.g. there's
nowhere in Denmark I can get one. I'd need to go abroad (Malmö,
Sweden)[1]
i assume, you are located at sjælland, then?
any chance you'd be willing to apply that fix to othere people's frerunner?
i'd gladly consider a
Rask,
I guess it comes down to price.
Most normal end users won't need the current measurement as they
don't do development, so adding an extra chip to do the measurement
either in the device or in every battery might not be worth it.
Maybe in the device just run a wire to the 3rd battery pin,
On 8/10/09, Wolfgang Spraul wolfg...@qi-hardware.com wrote:
Rask,
I guess it comes down to price.
Most normal end users won't need the current measurement as they
don't do development, so adding an extra chip to do the measurement
either in the device or in every battery might not be worth
Rafael Campos meth...@gmail.com writes:
Q: But why doesn't it ever stop charging on my device?
A: The GSM modem is connected directly to the battery terminals so if
it's active, charger will think it's still charging the battery and
won't turn off unless GSM becomes inactive.
Al Johnson openm...@mazikeen.demon.co.uk writes:
Where exactly is this figure from? Are you looking at the battery monitor
sysfs entry, or something that gets the incorrect figure from hal?
current_now file from sysfs.
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Sebastian Krzyszkowiak seba.d...@gmail.com writes:
I think he's talking about E battery metter, which proves that he's wrong ;)
Sorry for the late reply, but no, I don't run any E stuff :-)
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On 8/4/09, Al Johnson openm...@mazikeen.demon.co.uk wrote:
On Monday 03 August 2009, Timo Juhani Lindfors wrote:
Timo Juhani Lindfors timo.lindf...@iki.fi writes:
Could the capacity measurement get confused during long storage?
Answering to myself here: When I charged the battery capacity
Timo Juhani Lindfors timo.lindf...@iki.fi writes:
Could the capacity measurement get confused during long storage?
Answering to myself here: When I charged the battery capacity
increased steadily but when it reached 67% it suddenly jumped to 100%
in one minute. I think this concludes that
Nice discussion on the follow mails, but i've a doubt
On Sun, Aug 2, 2009 at 7:07 PM, Paul Fertser fercer...@gmail.com wrote:
Hi,
This is a text version of the wikipage [1], feel free to ask new questions
there on the talk page. Discussion on this ML is also appreciated (and
in fact i'm
Paul Fertser fercer...@gmail.com writes:
Q: I have several compatible batteries. What are the storage
requirements for them?
A: Keep in a dry cool place charged to no more than 75%.
My new gta02 battery shows capacity of 0% when I plug it in and starts
to slowly charge. Is it better to charge
Timo Juhani Lindfors timo.lindf...@iki.fi writes:
Could the capacity measurement get confused during long storage?
Answering to myself here: When I charged the battery capacity
increased steadily but when it reached 67% it suddenly jumped to 100%
in one minute. I think this concludes that the
On Monday 03 August 2009, Timo Juhani Lindfors wrote:
Timo Juhani Lindfors timo.lindf...@iki.fi writes:
Could the capacity measurement get confused during long storage?
Answering to myself here: When I charged the battery capacity
increased steadily but when it reached 67% it suddenly jumped
Hi,
This is a text version of the wikipage [1], feel free to ask new questions
there on the talk page. Discussion on this ML is also appreciated (and
in fact i'm more comfortable with ML than the wiki).
Openmoko devices
Battery questions and answers
NB: Some of the described behaviour depends
Paul Joerg,
this is an excellent document, obviously I cannot spot anything wrong!
I didn't know that some external chargers would not charge gta01 or gta02
batteries because of the thermistor check you are writing about.
All the cheap external chargers we bought in Taiwan or China for testing
Wolfgang Spraul wolfg...@qi-hardware.com writes:
this is an excellent document, obviously I cannot spot anything
wrong!
Thanks for you kind words. :)
I didn't know that some external chargers would not charge gta01 or gta02
batteries because of the thermistor check you are writing about.
Paul,
We will ship our first NanoNote with a BL-4C compatible battery, without
Coulomb counter (middle pin unused) [1].
Hm, can BL-5C fit there? Because it'd be much nicer as modern 5Cs have
quite some capacity.
It fits, but it's a bit too thick so it's hard to close the battery cover with
Wolfgang Spraul wolfg...@qi-hardware.com writes:
We will ship our first NanoNote with a BL-4C compatible battery, without
Coulomb counter (middle pin unused) [1].
Hm, can BL-5C fit there? Because it'd be much nicer as modern 5Cs have
quite some capacity.
It fits, but it's a bit too thick
2009/8/2 Wolfgang Spraul wolfg...@qi-hardware.com
Hmm, that's a pretty strong statement.
At Openmoko we spent _a lot_ of money combined to get this CC thing to
work.
The theory was that you have it in most notebook batteries so it's 'a good
thing to have'.
But if it's not actually used,
Michal Brzozowski ruso...@poczta.fm writes:
2009/8/2 Wolfgang Spraul wolfg...@qi-hardware.com
Hmm, that's a pretty strong statement.
At Openmoko we spent _a lot_ of money combined to get this CC thing to
work.
The theory was that you have it in most notebook batteries so it's 'a
Hm, there's probably something very wrong with your config, no?
what config?
With GSM on in suspend it should last for 140 hrs
only when deep sleep is usable.
the only time i ever heard of 140h suspend were the mail from daniel
willmann after he applied a hw fix to #1024.
my fr suffers from
Paul,
one more thing...
To me it seems that CC readings are almost unused except for
presenting the user with a bit more accurate capacity data. And when
someone is developing something lowlevel he could as well connect and
external ampmeter, much more reliable and flexible approach.
This is
arne anka openm...@ginguppin.de writes:
Hm, there's probably something very wrong with your config, no?
what config?
Probably deep sleep disabled :)
With GSM on in suspend it should last for 140 hrs
only when deep sleep is usable.
Sure. And with deep sleep disabled it should still be
Paul,
Wolfgang, please consider making current measurement in suspend
easy. :)
Yeah - I thought that's what we were talking about :-)
I'm not sure about your TP/DMM/EE advice.
Isn't the Coulomb counter the perfect way to make precise data available to
everybody? That was the point I was
2009/8/2 Paul Fertser fercer...@gmail.com
Michal Brzozowski ruso...@poczta.fm writes:
2009/8/2 Wolfgang Spraul wolfg...@qi-hardware.com
Hmm, that's a pretty strong statement.
At Openmoko we spent _a lot_ of money combined to get this CC thing
to work.
The theory was that
Yes, exactly. But fixing is fairly trivial, the soldering part is in
fact easier than the buzz fix.
well, i sincerely hop, someone steps up and offers that kind of fix.
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Wolfgang Spraul wolfg...@qi-hardware.com writes:
To me it seems that CC readings are almost unused except for
presenting the user with a bit more accurate capacity data. And when
someone is developing something lowlevel he could as well connect and
external ampmeter, much more reliable and
Michal Brzozowski ruso...@poczta.fm writes:
With GSM on in suspend it should last for 140 hrs and with off it
should be even more.
Really? Isn't that with deep sleep on?
Sure.
Paul, of all those acronyms I only understand AA batteries. I said
I'm a normal user :-)
ROTFL
--
Be
Wolfgang Spraul wolfg...@qi-hardware.com writes:
Wolfgang, please consider making current measurement in suspend
easy. :)
Yeah - I thought that's what we were talking about :-)
I'm not sure about your TP/DMM/EE advice.
Hm, if the TPs are easily reachable i'd say that measuring voltage
over
Paul,
Yes, i think that's the case. The only state where integrated power
measurement
readings are unavailable is suspend and that's quite low level
already.
You could measure the current when you wake up, couldn't you?
bq27000 measures current accurately so it should be possible. I'm
2009/8/2 Paul Fertser fercer...@gmail.com
Sure. And with deep sleep disabled it should still be ~70hrs, there're
some logs from Mickey proving that.
Oh, interesting. Maybe it was on a pure console image? I tested this some
time ago and I think that running X + enlightenment used more power
Paul,
And for me personally battery accessibility (i can go to the nearest shop
and buy a BL-6C in no time and for a fairly low price) is far more
important than accurate readings.
Oh sure, totally agree with you.
The question for me is only whether the device should support the 3rd pin
on
Wolfgang Spraul wolfg...@qi-hardware.com writes:
Yes, i think that's the case. The only state where integrated power
measurement
readings are unavailable is suspend and that's quite low level
already.
You could measure the current when you wake up, couldn't you?
It's possible with bq27k
Michal Brzozowski ruso...@poczta.fm writes:
2009/8/2 Paul Fertser fercer...@gmail.com
Sure. And with deep sleep disabled it should still be ~70hrs, there're
some logs from Mickey proving that.
Oh, interesting. Maybe it was on a pure console image? I tested this
some time ago and I
Paul,
It's possible with bq27k because it works autonomously. But if you do
something similar to gta01 there's no way to measure current in
suspend without an external equipment.
Can't you measure current before and after suspend, and knowing how long you
were in suspend calculate energy
Wolfgang Spraul wolfg...@qi-hardware.com writes:
It's possible with bq27k because it works autonomously. But if you do
something similar to gta01 there's no way to measure current in
suspend without an external equipment.
Can't you measure current before and after suspend, and knowing how
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