the battery on gdium can not be charged
yajin
I find that the battery on gdium can not be charged. (Hi gdium, I am really sorry for not touching you in the last 4 months. You know I am really busy then. :) ).
When I plug into the AC power, the LED shows that it is charging. (The RED LED is ON). However, after charging more than 8 hours, I still can not turn on the gdium without AC power. It seems that the battery on gdium can not be charged. I searched in the form[1], somebody else has met the same problem. Can any body tells me how can I resolve this problem?
[1] http://olph.gdium.com/forum/viewtopic.php?f=3&p=77
yajin
http://vm-kernel.org
Frederic Muller
This is a problem with some Intersil chip on an early batch (they
changed the spec without telling anyone). You need to return your Gdium
to get it fixed.
I'll contact you off the list for the exact process and the address to
send it to.
Fred
yajin
Can anyone know where can I buy and replace the battery?
debian-squeeze-mipsel:~# cat /sys/class/power_supply/gdium-battery/uevent
PHYSDEVPATH=/devices/platform/gdium-battery.0
PHYSDEVBUS=platform
POWER_SUPPLY_NAME=gdium-battery
POWER_SUPPLY_TYPE=Battery
POWER_SUPPLY_STATUS=Charging
POWER_SUPPLY_PRESENT=1
POWER_SUPPLY_VOLTAGE_MIN=7000000
POWER_SUPPLY_VOLTAGE_NOW=58000
POWER_SUPPLY_VOLTAGE_MAX=8300000
POWER_SUPPLY_CAPACITY=0
POWER_SUPPLY_CAPACITY_LEVEL=Low
yajin
http://vm-kernel.org
Frederic Muller
spec'ed) Intersil current output is not enough to get it to charge again.
Fred
Måns Rullgård
> The Battery is not broken, it only reached a level under which the (new
> spec'ed) Intersil current output is not enough to get it to charge again.
Can it be given a boost with a different charger, should one have one?
--
Måns Rullgård
ma...@mansr.com
Frederic Muller
below a minimum charge level the MB cannot recharge it.
The problem occurred on a December 2007 batch and was identified and
corrected very quickly. There should be very few machines affected "in
the wild".
So no, I wouldn't recommend a special charger.
Fred
Fred
Måns Rullgård
> Måns Rullgård wrote:
>> Frederic Muller <frederi...@dexxon.cn> writes:
>>
>>
>>> The Battery is not broken, it only reached a level under which the (new
>>> spec'ed) Intersil current output is not enough to get it to charge again.
>>>
>>
>> Can it be given a boost with a different charger, should one have one?
>
> Yes it can. But it doesn't fix the issue where when the battery goes
> below a minimum charge level the MB cannot recharge it.
>
> The problem occurred on a December 2007 batch and was identified and
> corrected very quickly. There should be very few machines affected "in
> the wild".
>
> So no, I wouldn't recommend a special charger.
I happen to have a machine/battery seemingly suffering from this. I
left it without power for a rather long time, and now it doesn't
charge.
--
Måns Rullgård
ma...@mansr.com
Abhishek Kulkarni
It does seem to get charged, however, but only about 20-30%
if I keep it over 8-9 hours. The battery is discharged completely
if I keep it off for a couple days without turning it on.
Is there a way to ensure if it is the Intersil chip issue or something
else?
Abhishek
>
> --
> Måns Rullgård
> ma...@mansr.com
>
> >
>
Fabrice Gamberini
as Fred already answered - it is possible, however to be clear: you have to remove the battery from the gdium and give it a "boost" (a couple minutes are sufficient) with a battery charger for lithium-polymer batteries. For instance, a charger for RC models (provided you adapt the plug to the gdium battery).
This cannot be done by just connecting a different PSU to the gdium itself.
and this will only fix the problem if you keep your battery charged, or charge it regularly (ie do not leave the gdium unattended, or uncharged, for more than a couple of weeks).
Fabrice
--
Fabrice Gamberini.
--
Fabrice Gamberini
that seems to be a different problem that could be caused by a defective battery, because in the case described above the charge is impossible once the battery has been discharged and under the security threshold.
I would suggest to get it repaired (you need to post your request through the gdium.com web site once you've registered your machine).
Fabrice
--
Fabrice Gamberini.
--
Måns Rullgård
> Hi
>
> as Fred already answered - it is possible, however to be clear: you have to
> remove the battery from the gdium and give it a "boost" (a couple minutes
> are sufficient) with a battery charger for lithium-polymer batteries. For
> instance, a charger for RC models (provided you adapt the plug to the gdium
> battery).
That was what I had in mind.
> This cannot be done by just connecting a different PSU to the gdium itself.
I would never connect a lithium batter to anything but a proper charger.
> and this will only fix the problem if you keep your battery charged, or
> charge it regularly (ie do not leave the gdium unattended, or uncharged, for
> more than a couple of weeks).
I'm aware of that, and it wouldn't be a problem for me. I'm running
my gdium on AC power (obviously), but being able to disconnect it
occasionally without it powering off would be nice.
--
Måns Rullgård
ma...@mansr.com
Fabrice Gamberini
well in that case, I suggest you re-use the small cable you will find when opening the battery compartment (between the battery connector and the PCB connector). Its sole purpose is to facilitate the connection between bat and pcb at manufacturing but otherwise you can remove it.
you will need some nimble fingers to put the battery back in, but it can be done :)
Thierry should be able to give you more details as he's already used an RC charger for this purpose (his nickname on IRC is Ryu-95).
Fabrice
--
Fabrice Gamberini.
--