Is this smart battery (internal circuitry+cell) custom via OM, or third party?
On Thu, Feb 14, 2008 at 11:58 AM, Wolfgang Spraul <[EMAIL PROTECTED]> wrote: > Andy - > > > class to expose it so it is generic. (I don't know for sure if it > > will > > ship with such a battery since it is decided in .tw according to > > availability and so on, but I hope it will.) > > Yes, I think we can confirm that every GTA02 will ship with this new > 'smart' battery. > There are more steps to go through internally, related to > certification, some sort of calibration. Tony, do you know more details? > The cell's capacity will increase slightly to 1250 mAh (before was > 1200 mAh). > I am trying to release the schematics for the small PCB inside the > smart battery as well, will be posted to the wiki. > > Wolfgang > > On Feb 15, 2008, at 12:43 AM, Andy Green wrote: > > > -----BEGIN PGP SIGNED MESSAGE----- > > Hash: SHA1 > > > > Somebody in the thread at some point said: > >> On Thursday, Feb 14, 2008, "Kyle Bassett" writes: > >>> There is talk about pushing startup power control of the internal > >>> devices > >>> (wifi, bt, gps, mmc, etc.) to user level, as every user may or may > >>> not want > >>> certain devices available at bootup/all the time (availability vs. > >>> duration). > >> > >> Indeed, this along with good realtime stats on power usage and > >> current > >> battery level would let people have reasonably accurate predictions > >> of > >> their battery life. It'd be interesting (to me at least) to turn > >> on and off the various peripherals and watch my projected battery > >> life > >> go up and down accordingly. > > > > GTA02 is capable to dialogue with a "smart battery" that will allow > > you > > to see the battery actual voltage and current flow (together: actual > > power) in uA down /sys in realtime, it uses the linux "Power Supply" > > class to expose it so it is generic. (I don't know for sure if it > > will > > ship with such a battery since it is decided in .tw according to > > availability and so on, but I hope it will.) > > > > The battery itself learns its cell performance over load and also > > makes > > available its "time to full/empty" estimate down /sys as well in > > seconds. You can see what data is available here: > > > > http://www.ti.com/lit/gpn/bq27000 > > > > You can see stuff like this > > > > for i in capacity charge_full current_now present status technology > > temp > > time_to_empty_now time_to_full_now type voltage_now ; do echo -n "$i > > " ; cat /sys/devices/platform/bq27000-battery.0/power_supply/bat/ > > $i ; done > > > > capacity 0 > > charge_full 1215585 > > current_now 183375 > > present 1 > > status Discharging > > technology Li-ion > > temp 276 > > time_to_empty_now 0 > > time_to_full_now 3932100 > > type Battery > > voltage_now 2761000 > > > > - -Andy > > -----BEGIN PGP SIGNATURE----- > > Version: GnuPG v1.4.7 (GNU/Linux) > > Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org > > > > iD8DBQFHtG+yOjLpvpq7dMoRAq2TAJoCYOC+PD3gj/jRMpOPnBL5MZJkzQCfTJn4 > > 9ebCrbNjtGtDMBsJuUXZ8HY= > > =ANtG > > -----END PGP SIGNATURE----- > > > > _______________________________________________ > > OpenMoko community mailing list > > community@lists.openmoko.org > > http://lists.openmoko.org/mailman/listinfo/community > > > _______________________________________________ > OpenMoko community mailing list > community@lists.openmoko.org > http://lists.openmoko.org/mailman/listinfo/community >
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