Battery discharging while plugged in

Dale Maggee antisol at internode.on.net
Fri Sep 5 18:09:02 CEST 2008


Daniel Benoy wrote:
> See if you have the same problem with the official charger.
>
>   
Ok, I'll switch it over to the charger later tonight and report back.
>> the way I'm plugging it in hasn't changed since It used to charge to 
>> 100% and stay there.
>>     
>
> My theory isn't so good then.. but it's still worth looking in to whether you're drawing the required current.
>
>   
>> erm, i don't know how to tell for sure
>>     
>
> This is a Freerunner right?
>
> Try this:
> cat /sys/devices/platform/s3c2440-i2c/i2c-adapter/i2c-0/0-0073/charger_type
>
> The far right should be the amperage that the charger is currently set to draw.  More details (and other things in sysfs you may want to examine) here:
> http://wiki.openmoko.org/wiki/GTA02_sysfs
>
> If you're plugged directly into the host, you should be getting 500mA, assuming your operating system is performing power negociation properly.  Hubs can be inconsistant unless they have external power.
>   
Yep, 500mA:

root at om-gta02:~# cat 
/sys/devices/platform/s3c2440-i2c/i2c-adapter/i2c-0/0-0073/charger_type
host/500mA usb mode 500mA

Thanks,
-Dale



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