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List: rockbox
Subject: Re: Battery issue on iaudio X5
From: newbeewan <newbeewan () nativobject ! com>
Date: 2010-05-18 10:02:41
Message-ID: 4BF265C1.8000803 () nativobject ! com
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Ok, Rockbox boot, start to play music and cut off the power just after
with the message low power...
Is it possible to wait for 10 or 15 seconds when rockbox is just started ?
Because battery voltage is not really stable at that moment (capacity is
not yet well calculated)... AFAIK, that may help to bring it up and
running with a cold battery !
Regards
Mourad
Le 17/05/2010 19:56, Dave Hooper a écrit :
>
> The condition is really the voltage reported by the battery itself. If
> the battery reports (via the power management electronics in your
> player) that the voltage is below a cutoff level (implemented in
> rockbox), rockbox will not boot. If rockbox did boot, however, the
> case is still that the battery won't supply enough voltage for the
> player to boot successfully!
>
>> On 17 May 2010 16:18, "newbeewan" <newbeewan@nativobject.com
>> <mailto:newbeewan@nativobject.com>> wrote:
>>
>> Le 17/05/2010 16:49, Andy a écrit :
>>
>>
>> >
>> > newbeewan wrote:
>> >>
>> >> Hi,
>> >>
>> >> I have some time an issue on battery charge level when using i...
>>
>> As sometimes I forgot it into my car, it fail to start for about 20
>> minutes before it internal temperature is warm enough.
>>
>> During winter, I was agree with that, because negative temperature
>> are not good for batteries and electronic devices, but 7 or 8 °C seem
>> to be good !
>>
>> My battery is 3 years old, that's may be an explanation !
>>
>> My real question was what are criteria for rockbox to decide if
>> battery is empty ?
>> Is it possible to overide it a little to permit some cold (real
>> meaning !) boot !
>>
>> I will try with the original FW to see if there are the same comportment.
>>
>> Regards
>>
>>
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Ok, Rockbox boot, start to play music and cut off the power just after
with the message low power...<br>
<br>
Is it possible to wait for 10 or 15 seconds when rockbox is just
started ?<br>
<br>
Because battery voltage is not really stable at that moment (capacity
is not yet well calculated)... AFAIK, that may help to bring it up and
running with a cold battery !<br>
<br>
Regards<br>
<br>
Mourad<br>
<br>
Le 17/05/2010 19:56, Dave Hooper a écrit :
<blockquote
cite="mid:AANLkTilZwN6TwruoqGPhAHny0YPs5HH9Few3SkzBU2W2@mail.gmail.com"
type="cite">
<p>The condition is really the voltage reported by the battery
itself. If the battery reports (via the power management electronics in
your player) that the voltage is below a cutoff level (implemented in
rockbox), rockbox will not boot. If rockbox did boot, however, the
case is still that the battery won't supply enough voltage for the
player to boot successfully!</p>
<blockquote type="cite">On 17 May 2010 16:18, "newbeewan" <<a
moz-do-not-send="true" \
href="mailto:newbeewan@nativobject.com">newbeewan@nativobject.com</a>> wrote:<br>
<br>
Le 17/05/2010 16:49, Andy a écrit :
<p><font color="#500050"><br>
><br>
> newbeewan wrote:<br>
>><br>
>> Hi,<br>
>><br>
>> I have some time an issue on battery charge level when using
i...</font></p>
As sometimes I forgot it into my car, it fail to start for about 20
minutes before it internal temperature is warm enough.<br>
<br>
During winter, I was agree with that, because negative temperature are
not good for batteries and electronic devices, but 7 or 8°C seem to be
good !<br>
<br>
My battery is 3 years old, that's may be an explanation !<br>
<br>
My real question was what are criteria for rockbox to decide if battery
is empty ?<br>
Is it possible to overide it a little to permit some cold (real meaning
!) boot !<br>
<br>
I will try with the original FW to see if there are the same
comportment.<br>
<br>
Regards
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