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maemo.org - Talk (https://talk.maemo.org/index.php)
-   Nokia N900 (https://talk.maemo.org/forumdisplay.php?f=44)
-   -   N900 battery life questions, issues, scenarios (https://talk.maemo.org/showthread.php?t=31020)

vvaz 2009-10-12 09:53
Re: N900 battery life
 
Yet another account of battery life:

http://www.valdyas.org/fading/index....9/10/11#maesum

Quote:
Worst thing: the battery goes flat after only eight hours of continuously running ssh to my home server, the media player, the (great> mauku identi.ca client, email checking, browsing and gaming -- and it can run only about six to seven apps at the same time before the music starts stuttering when when I connect it as a mass storage device to mhy laptop. Shame!
Note: author is disappointed but in fact those 8 hours are really good outcome from heavy usage!

Check source for photos from N900, in low light quality is really bad.

onutz 2009-10-12 10:27
Re: N900 battery life
 
7-8 hours is great in modem and multimedia high usage profile. 3-4 hours, as it seemed in early days, is not...

Here is why:
http://utestme.com/2009/09/12/nokia-n900-battery-life/

zkyevolved 2009-10-12 10:39
Re: N900 battery life
 
Well, if we can get 7-8 hours of HEAVY usage. (i'm not exactly how sure nor how damanding SSH program is). But one thing that surprised me was that his music was hopping frames with only 6 apps open :s. That's kind of frightening.

ysss 2009-10-12 10:46
Re: N900 battery life
 
These cortex A8 devices have extremely wide range of power consumption rate. It's normal to drain all the battery in 4-5 hours while they can last 1-2 weeks in complete idle state.

Be glad that the N900 has an open platform\architecture\license\etc so that we'll have all the tools and transparency needed to optimize the system to eek out every last drop of its performance.

qgil 2009-10-12 11:08
Re: N900 battery life
 
Quote:
Originally Posted by zkyevolved (Post 344322)
Well, if we can get 7-8 hours of HEAVY usage. (i'm not exactly how sure nor how damanding SSH program is). But one thing that surprised me was that his music was hopping frames with only 6 apps open :s. That's kind of frightening.
What he says is

Quote:
it can run only about six to seven apps at the same time before the music starts stuttering when when I connect it as a mass storage device to mhy laptop.
If you go to mass storage the music will stop playing no matter how many apps are open, since both the eMMC and the MicroSD are now in the hands of your laptop.

bugelrex 2009-10-12 12:36
Re: N900 battery life
 
Quote:
Originally Posted by ysss (Post 344323)
These cortex A8 devices have extremely wide range of power consumption rate. It's normal to drain all the battery in 4-5 hours while they can last 1-2 weeks in complete idle state.

Be glad that the N900 has an open platform\architecture\license\etc so that we'll have all the tools and transparency needed to optimize the system to eek out every last drop of its performance.
I think its best to judge the battery on a relative basis. Eg how does it compare with the E71 with similar usage. I would be satisfied if it lasts just half as long as the e71.

If its much less than that then...... mmmmm

icebox 2009-10-12 12:53
Re: N900 battery life
 
Quote:
Originally Posted by janzeeschuimers (Post 336691)
But there is one thing more to tell about the battery of the n900 , it is only a Li-Ion battery against the much better Li-Polymer of the N810.
When compared to a lithium-ion battery, a Li-poly has a greater life cycle , and lower weight and greatly increased run times.

Nokia gives the N900 not only less battery-power , from 1500mAh to "only" 1320 mAh but also a worse battery-technologie from Li-Polymer to Li-Ion.
I'm afraid you are a bit wrong. The main advantage of Li-Polymer is the posibility of the battery taking non-standard shapes.

Wikipedia says:
The advantages of Li-poly over the lithium-ion design include lower cost manufacturing and being more robust to physical damage. Lithium-ion polymer batteries started appearing in consumer electronics around 1996.

icebox 2009-10-12 12:54
Re: N900 battery life
 
Quote:
Originally Posted by qgil (Post 328692)
No, I'm not saying it. Not many sales devices in this category would resist this intensive use in one go. About the N900 you will find yourselves after opening the sales box. In any case you know that Nokia has high standards in power management.
Yes I know, my e71 is one of the few devices that stands up to the task and I know nokia know their way around with power. Still they managed to fit the bp-4l inside the e55 and e52 although both are thin, light, feature packed phones.

Seriously, by the number of hardware features, I hoped the n900 would have a bp-4l and another, smaller one like the BP-6M, both hot swappable :D But that's just me.

dansus 2009-10-14 05:18
Re: N900 battery life
 
Looks like those that received the freebees at Maemo Summit are reporting on Twitter very good battery life for the N900.


Quote:
It died after 8 hrs of heavy use. And I mean real heavy. All the time
connected to home WLAN, intensive net browsing, downloads, video streaming,
video playback, music playback, running multiple apps, etc;

dansus 2009-10-14 05:18
Re: N900 battery life
 
Looks like those that received the freebees at Maemo Summit are reporting on Twitter very good battery life for the N900.


Quote:
It died after 8 hrs of heavy use. And I mean real heavy. All the time
connected to home WLAN, intensive net browsing, downloads, video streaming,
video playback, music playback, running multiple apps, etc;


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