[maemo-users] Fwd: N900 is hot when charged & sucks battery life after updatingto PR1.2

[From: Paul Hartman]

On Tue, Jun 8, 2010 at 3:43 PM, Paul Hartman
<paul.hartman+maemo at gmail.com> wrote:
> On Tue, Jun 8, 2010 at 11:42 AM, Aldon Hynes
> <Aldon.Hynes at orient-lodge.com> wrote:
>> How hot is it?
>>
>> I've started running Kernel Power which I really like.
>> http://wiki.maemo.org/Kernel_Power
>>
>> Mostly because it gives me the ability to use IPv6.  However, one of the
>> other features it provides is information about the battery.
>>
>> Specifically, if you run
>> modprobe bq27x00_battery
>> it will give you access to data about the battery, including capacity,
>> voltage_now, current_now and temp
>>
>> It seems like this might be useful in understanding what is going on with
>> the battery, if it has been damaged, etc.
>>
>> For example, right now, my battery is reporting:
>>
>> POWER_SUPPLY_VOLTAGE_NOW=3979
>> POWER_SUPPLY_CURRENT_NOW=789
>> POWER_SUPPLY_CAPACITY=83
>> POWER_SUPPLY_TEMP=25
>>
>> Yesterday, when I had drained it, the POWER_SUPPLY_TEMP climbed to 40.
>>
>> I'm curious about what other people are seeing for these numbers, as well as
>> what the acceptable ranges should be.
>>
>> Anyone else running Kernel_Power and care to report on the status of their
>> batteries?
>
> # cat /sys/class/power_supply/bq27200-0/capacity
> 92
> # cat /sys/class/power_supply/bq27200-0/voltage_now
> 4026
> # cat /sys/class/power_supply/bq27200-0/current_now
> 50
> # cat /sys/class/power_supply/bq27200-0/temp
> 32

While charging via USB and watching video with headphones my battery
temp goes up to 44 according to /sys/class/power_supply/bq27200-0/temp