N900 consumes too much power

N900 consumes too much power

2012-08-05 08:52 UTC
Dear comaemoers,

I have recently read an article, a review of Nokia N900. The reviewer stated that his device lasts 3 days on battery when only sometimes calling or writing SMS.
This is what I hardly can believe because my N900 lasts only 3, max. 6 hours on battery and then the battery gets discharged.
Was the reviewer kidding or is something wrong with my mobile computer?
I have recently bought a new battery and the effect is minimal.
My device was in repair service already and they changed the motherboard. It helped a bit but I never made it to that 3 days on battery.
Any ideas? :-)
--
Pavel Řezníček

vývojář a správce sítě
Farní sbor Českobratrské církve evangelické – Korandův sbor
Anglické nábřeží 13
301 50 Plzeň

Odesláno z mého telefonu Nokia N900 s linuxovým operačním systémem Maemo 5 Fremantle.

  •  Reply

Re: N900 consumes too much power

Dmitry Chistikov

2012-08-05 09:16 UTC
Pavel Řezníček, Aug. 05, 2012, 10:52 +0200:
> I have recently read an article, a review of Nokia N900. The reviewer
> stated that his device lasts 3 days on battery when only sometimes
> calling or writing SMS.
> This is what I hardly can believe because my N900 lasts only 3, max.
> 6 hours on battery and then the battery gets discharged.
> Was the reviewer kidding or is something wrong with my mobile computer?
> I have recently bought a new battery and the effect is minimal.

Hello Pavel,

I think something is definitely wrong with your device or software.
Battery life of my N900 is days, not hours (I do not use it really much
though).

I am not sure these links will be of help, but maybe you will be able to
find something useful there:

http://wiki.maemo.org/Make_your_battery_last_longer
http://wiki.maemo.org/Battery_consuming_and_memory_leaking_applications

--
Dmitry Chistikov
  •  Reply

Re: N900 consumes too much power

rixed at happyleptic.org

2012-08-05 09:18 UTC
-[ Sun, Aug 05, 2012 at 10:52:29AM +0200, Pavel ??ezní??ek ]----
> Dear comaemoers,
>
> I have recently read an article, a review of Nokia N900. The reviewer stated that his device lasts 3 days on battery when only sometimes calling or writing SMS.
> This is what I hardly can believe because my N900 lasts only 3, max. 6 hours on battery and then the battery gets discharged.
> Was the reviewer kidding or is something wrong with my mobile computer?

Mine, whith it's quite old battery, can probably last 2 days with this
kind of usage (but browsing the web on wifi empty the batterie on 3/4
hours).

I'd say you have a program installed that ruins the battery life.

  •  Reply

Re: N900 consumes too much power

Michael Rösch
Karma: 100
2012-08-05 16:06 UTC
Am 05.08.2012 10:52, schrieb Pavel Řezníček:
> Dear comaemoers,
>
> I have recently read an article, a review of Nokia N900. The reviewer
> stated that his device lasts 3 days on battery when only sometimes
> calling or writing SMS.
> This is what I hardly can believe because my N900 lasts only 3, max. 6
> hours on battery and then the battery gets discharged.
> Was the reviewer kidding or is something wrong with my mobile computer?
> I have recently bought a new battery and the effect is minimal.
> My device was in repair service already and they changed the
> motherboard. It helped a bit but I never made it to that 3 days on battery.
> Any ideas? :-)

The biggest leap in saving enery is to use smart-reflex.
Thus for you have to install kernel-power 50.
Please read all instructions in the wiki carefully before doing so.
Installing latest CSSU is recommended too.

CU Michael
--
In the beginning, God created the earth and rested. Then God created Man
and rested. Then God created Woman. Since then, neither God nor Man has
rested.
  •  Reply

Re: N900 consumes too much power

2012-08-05 18:07 UTC
Dne 5.8.2012 11:18, rixed@happyleptic.org napsal(a):
> -[ Sun, Aug 05, 2012 at 10:52:29AM +0200, Pavel ??ezní??ek ]----
>> Dear comaemoers,
>>
>> I have recently read an article, a review of Nokia N900. The reviewer stated that his device lasts 3 days on battery when only sometimes calling or writing SMS.
>> This is what I hardly can believe because my N900 lasts only 3, max. 6 hours on battery and then the battery gets discharged.
>> Was the reviewer kidding or is something wrong with my mobile computer?
> Mine, whith it's quite old battery, can probably last 2 days with this
> kind of usage (but browsing the web on wifi empty the batterie on 3/4
> hours).
>
> I'd say you have a program installed that ruins the battery life.
>
Thank you for your tips, Dmitry!

After the suggestions of others, I think one problem is that I'm
connected all the time to my WiFi at home. But it isn't everything. Even
when not connected (while I'm outdoors), the battery lives for hours,
never days.
I'll try to investigate the battery killer ;-)

Pavel
  •  Reply

Re: N900 consumes too much power

2012-08-05 18:17 UTC
Dne 5.8.2012 11:16, Dmitry Chistikov napsal(a):
> Pavel Řezníček, Aug. 05, 2012, 10:52 +0200:
>> I have recently read an article, a review of Nokia N900. The reviewer
>> stated that his device lasts 3 days on battery when only sometimes
>> calling or writing SMS.
>> This is what I hardly can believe because my N900 lasts only 3, max.
>> 6 hours on battery and then the battery gets discharged.
>> Was the reviewer kidding or is something wrong with my mobile computer?
>> I have recently bought a new battery and the effect is minimal.
> Hello Pavel,
>
> I think something is definitely wrong with your device or software.
> Battery life of my N900 is days, not hours (I do not use it really much
> though).
>
> I am not sure these links will be of help, but maybe you will be able to
> find something useful there:
>
> http://wiki.maemo.org/Make_your_battery_last_longer
> http://wiki.maemo.org/Battery_consuming_and_memory_leaking_applications
>
Dear Dmitry,

thank you for your tips.

1. I am connected all the time at home to my WiFi network. Do you think
it could consume so much power?
2. I'll try to find the battery killer with this list's help :-)

Pavel
  •  Reply

Re: N900 consumes too much power

2012-08-05 18:20 UTC
Dne 5.8.2012 11:18, rixed@happyleptic.org napsal(a):
> -[ Sun, Aug 05, 2012 at 10:52:29AM +0200, Pavel ??ezní??ek ]----
>> Dear comaemoers,
>>
>> I have recently read an article, a review of Nokia N900. The reviewer stated that his device lasts 3 days on battery when only sometimes calling or writing SMS.
>> This is what I hardly can believe because my N900 lasts only 3, max. 6 hours on battery and then the battery gets discharged.
>> Was the reviewer kidding or is something wrong with my mobile computer?
> Mine, whith it's quite old battery, can probably last 2 days with this
> kind of usage (but browsing the web on wifi empty the batterie on 3/4
> hours).
>
> I'd say you have a program installed that ruins the battery life.
>
Thank you for sharing your experience, Rixed!

I am connected all the time to WiFi at home. But even outdoors when not
connected, my battery discharges in a couple of hours.

Pavel
  •  Reply

Re: N900 consumes too much power

2012-08-05 18:25 UTC
Dne 5.8.2012 18:06, Michael Rösch napsal(a):
> Am 05.08.2012 10:52, schrieb Pavel Řezníček:
>> Dear comaemoers,
>>
>> I have recently read an article, a review of Nokia N900. The reviewer
>> stated that his device lasts 3 days on battery when only sometimes
>> calling or writing SMS.
>> This is what I hardly can believe because my N900 lasts only 3, max. 6
>> hours on battery and then the battery gets discharged.
>> Was the reviewer kidding or is something wrong with my mobile computer?
>> I have recently bought a new battery and the effect is minimal.
>> My device was in repair service already and they changed the
>> motherboard. It helped a bit but I never made it to that 3 days on battery.
>> Any ideas? :-)
> The biggest leap in saving enery is to use smart-reflex.
> Thus for you have to install kernel-power 50.
> Please read all instructions in the wiki carefully before doing so.
> Installing latest CSSU is recommended too.
>
> CU Michael
Thank you, Michael!

Now I don't exactly know what smart-reflex is for now. I surely can
search for it but if you could explain it also for the others, I'd be
happy :-)
OK, I'm not sure if I have the kernel-power installed for now. I'll
definitely install it. Last time the installation ran without problems.
CSSU. This is still a mystery for me. It's a sure choice then. I notice
I am a bit noob :-D

Pavel
  •  Reply

Re: N900 consumes too much power

Jan Knutar
Karma: 279
2012-08-05 19:45 UTC
On Sunday 05 August 2012, Pavel Řezníček wrote:

> I am connected all the time to WiFi at home. But even outdoors when
> not connected, my battery discharges in a couple of hours.

Are you connected to 3g instead when outdoors? Do you have "switch to
WLAN when available" enabled?
  •  Reply

Re: N900 consumes too much power

Jan Knutar
Karma: 279
2012-08-05 19:45 UTC
On Sunday 05 August 2012, Michael Rösch wrote:

> The biggest leap in saving enery is to use smart-reflex.

Considering how abnormal his battery use is, I don't think smartreflex is
the answer. Considering smartreflex only makes a difference when the CPU
is on, and on a properly configured device, the CPU spends most of the
time off.
  •  Reply
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