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2010-11-05
, 03:41
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Posts: 228 |
Thanked: 145 times |
Joined on Dec 2009
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#2
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[movie voice] How do I stop these... DEMONS?! [/movie voice]
My N900 will run fine for 30 hours on a single charge, with light web browsing and phone calls. I think you're fine.
For the GPS, the N900 wants to have an internet connection. So you're not going to be able to disable the cellular modem. But this means that your Internet-connecting apps will be waking up and doing data transfers, e.g., modest, apt-get, etc.
You can also kill browserd.
My N900 will run fine for 30 hours on a single charge, with light web browsing and phone calls. I think you're fine.
For the GPS, the N900 wants to have an internet connection. So you're not going to be able to disable the cellular modem. But this means that your Internet-connecting apps will be waking up and doing data transfers, e.g., modest, apt-get, etc.
You can also kill browserd.
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2010-11-05
, 04:04
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Posts: 99 |
Thanked: 24 times |
Joined on Feb 2010
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#3
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Originally Posted by jacktanner
how do i stop browserd? i just did a "killall browser browserd" in root (found from another thread) and it rebooted the N900.
[movie voice] How do I stop these... DEMONS?! [/movie voice]
My N900 will run fine for 30 hours on a single charge, with light web browsing and phone calls. I think you're fine.
For the GPS, the N900 wants to have an internet connection. So you're not going to be able to disable the cellular modem. But this means that your Internet-connecting apps will be waking up and doing data transfers, e.g., modest, apt-get, etc.
You can also kill browserd.
the internet connection is only required when establishing a GPS fix. after that, i can switch the N900 to offline mode, providing the satellite signals are strong enough. i've tried it.
i've also found a way to "disable" auto updates check:
gconftool -s --type int /apps/hildon/update-notifier/check_interval A_REALLY_LARGE_NUMBER
| The Following User Says Thank You to nokix For This Useful Post: | ||
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2010-11-05
, 05:18
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Posts: 131 |
Thanked: 78 times |
Joined on May 2010
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#4
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Yesterday, I had my N900 in offline mode for six hours, plus about one hour of very light wifi (letting it sync, etc). In total, the battery lost about 8% (from 90% to 82%).
The N900 uses almost no power when in offline mode, locked. Two batteries will be just fine if you come out of offline mode to get a GPS fix every ~30 minutes.
The N900 uses almost no power when in offline mode, locked. Two batteries will be just fine if you come out of offline mode to get a GPS fix every ~30 minutes.
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2010-11-05
, 05:34
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Posts: 486 |
Thanked: 251 times |
Joined on Oct 2009
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#5
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Originally Posted by jacktanner
Once the GPS has a fix, there is no reason not to shut down the cellular modem.
My N900 will run fine for 30 hours on a single charge, with light web browsing and phone calls. I think you're fine.
For the GPS, the N900 wants to have an internet connection. So you're not going to be able to disable the cellular modem. But this means that your Internet-connecting apps will be waking up and doing data transfers, e.g., modest, apt-get, etc.
__________________
The Mini-USB plug is an improvement over both the Type B plug and the Micro-B plug.
The Mini-USB plug is an improvement over both the Type B plug and the Micro-B plug.
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2010-11-05
, 05:48
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Posts: 9 |
Thanked: 1 time |
Joined on Feb 2010
@ Hamburg, Germany
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#6
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afaik there is no need at all to use the "a-gps" feature. It just speeds up getting the first fix.
If you got 5 minutes of time before you start recording it should work without cellular modem switched on.
just my 5ct
Jonni
If you got 5 minutes of time before you start recording it should work without cellular modem switched on.
just my 5ct
Jonni
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2010-11-05
, 05:54
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Posts: 3,159 |
Thanked: 2,023 times |
Joined on Feb 2008
@ Finland
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#7
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Originally Posted by xtjonni
why not using it and after you have fix, switch to offline mode?
afaik there is no need at all to use the "a-gps" feature. It just speeds up getting the first fix.
If you got 5 minutes of time before you start recording it should work without cellular modem switched on.
just my 5ct
Jonni
running gps chip for 5 minutes takes probably more current than sending and receiving some bytes with cellular modem.
e: one more tip or two: do not lid up the display unless you really really have to. switch off blinking led.
__________________
Want to know something?
K.I.S.S. approach:
wiki category:beginners. Browse it through and you'll be much wiser!
If the link doesn't help, just use
Google Custom Search
Want to know something?
K.I.S.S. approach:
wiki category:beginners. Browse it through and you'll be much wiser!
If the link doesn't help, just use
Google Custom Search
| The Following User Says Thank You to ossipena For This Useful Post: | ||
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2010-11-08
, 12:22
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Posts: 99 |
Thanked: 24 times |
Joined on Feb 2010
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#8
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had a trial this weekend. using eCoach with 20 sec interval, switched to offline mode after getting GPS fix, battery went from 96% to 59% after 8 hours. so one battery should be able to last me 20 hours. will try GPS Recorder next weekend.
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2010-11-08
, 12:47
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Posts: 623 |
Thanked: 289 times |
Joined on Jan 2010
@ UK
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#9
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Originally Posted by nokix
If you have a couple of weeks before you go, buy a Mugen battery, they are bulky, but last forever. I have just got one and the only critisium I have is the camera slider, it works but the design is poor!
i'm about to embark on a long trail walk (30+ hours) in a couple of weeks and i'd like to record it with either eCoach or GPS Recorder on my N900.
Originally Posted by nokix
As the screen is back lit a black background will make no difference to battery life, instead set some photos relating to you trip to help inspire you
... using a black background on my desktop ...
| The Following User Says Thank You to JonWW For This Useful Post: | ||
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2010-11-08
, 14:30
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Posts: 427 |
Thanked: 160 times |
Joined on Nov 2009
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#10
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search forums for 'Optimize_N900'
its a little script that does wonders. i put it on my desktop as a beecon widget and it never fails to remedy slowdowns
its a little script that does wonders. i put it on my desktop as a beecon widget and it never fails to remedy slowdowns
__________________
Please vote for the following bug:
Media player should play audio tracks continuously (gapless playback)
Please vote for the following bug:
Media player should play audio tracks continuously (gapless playback)
i'm about to embark on a long trail walk (30+ hours) in a couple of weeks and i'd like to record it with either eCoach or GPS Recorder on my N900. as many of you might have guessed already, my only concern is power consumption. i have two batteries (the Nokia BL-5J) at my disposal. and i will re-flash my device and install only those two apps, or only one of them, if i could find out which one of eCoach and GPS Recorder is better than the other. basically, i'll be using my N900 as a GPS device only. i'm using another phone for calls.
i've already taken all necessary means to save power (e.g. setting the brightness to lowest, turning off time update, using a black background on my desktop without any shortcut or widget). and i know i can "tracker-processes -t" to stop trackerd. is there anything else i can stop?
i think i will also explore QCPUFreq to limit the maximum CPU frequency and/or to use SmartReflex. does anyone have any experience on this (e.g. lowest sustainable maximum frequency)?