Re: Battery consumption analysis
 

Mazi,

What you describe sounds a lot like this bug I reported:

https://bugs.maemo.org/show_bug.cgi?id=8848

Please verify and vote for it if you confirm it. Thanks.

Re: Battery consumption analysis
 

i have insalled that button , so i can switch wifi completly off. since than my phone lasts longer, if i switch wifi off , every time i am not using it. Before i had that button , it was faster empty

btw.
The is a gravaty sensor in the n900 ??? so is it realy turned off , if the sreen is off , or is is all the time ON ??? What else can f***k the poor baterry so hard ???

Re: Battery consumption analysis
 

Poor wife :)

.edit
This is getting really hilarious. My "Phone" lasts longer. Come ooon :) I know

Re: Battery consumption analysis
 

I ve observed is that the battery drain faster when it is plugged (when the charge is ended) than when it is unplugged..

Strange

Am i alone to see it?

Re: Battery consumption analysis
 

Most likely bug 6615 - https://bugs.maemo.org/show_bug.cgi?id=6615

Are you using static IP address with Wi-Fi ? If yes, use the script mentioned in the above thread and the problem will be resolved. No more need to reboot.

Re: Battery dies DURING charging!
 

@earledawes & all - original post #54
http://talk.maemo.org/showpost.php?p...6&postcount=54

n900 have omap companion chip TWL4030 inside. I can't find technical datasheet but TPS65950 is identical hw & sw ( i guess - rename ) and this chip have an erata

Re: Battery consumption analysis
 

Took phone off charger this morning at 9:00 put phone on silent. Tryed to unlock phone at 11:30 noticed it was dead.

Checked boot reason when i restarted "32wd_to".

The settings were mail update any network 10mins

internet any conection search 10 mins, wlan when available.

running apps battery-eye, xterm, email, web 2 windows nothing with auto refresh, settings.

Any sugesstions?

Re: Battery consumption analysis
 

app dont actualize for me why?

Re: Battery consumption analysis
 

Mine ir charging only till 1200mAh :(
http://jekabsons.lv/moins/batt.png

Re: Battery consumption analysis
 

See also bug 7636.

HAL considers the battery.reporting.design value as "100%", and the percentage reported is simply the battery.reporting.current value relative to that. The level reached at the end of each charge varies due to environmental factors and battery wear. So, you can only possibly see 100% when charging a brand-new battery in ideal temperature, current etc conditions.

Re: Battery consumption analysis
 

the bat level app itself consumes so much of battery. ;)

Re: Battery consumption analysis
 

Do you have the app running all the time? This is not necessary.

It will hardly use any battery as it runs in the background (you don't need it open for it to save battery data):
http://talk.maemo.org/showthread.php...506#post517506

A details breakdown of how it works (by the creator):
http://talk.maemo.org/showthread.php...502#post517502

Re: Battery consumption analysis
 

hardware watchdog, probably something didn't respond within deadline. Shouldn't be related to this app at all.

See for example: https://bugs.maemo.org/show_bug.cgi?id=6334

Re: Battery consumption analysis
 

Hi Guys I've just installed this app, and it's exactly what I've been looking for. I was very disappointed when I found my device lasted for about 9 hrs connected to a 3G packet data connection, with MSN, Jabber, Gtalk and Skype enabled.

Since then, I've dropped to a 2g connection (constant packet data) with MSN jabber and gtalk enabled, fetching emails every 30 mins.

I get an average of 12 hrs. I see you guys getting 3 days! This doesn't seem possible! :( I've had to drop from 4 to 2 bars of brightness too.

I downloaded htop, and it showed me what I thought I'd see.

I've got a process running at an almost contast 10% somewhere in opt/maemo/usr/bin/ (not sure how to see past there, yes I fail I know)

and the device is peaking up to 46, and sitting around 13-23% cpu usage when I've got a plain old terminal window open.

does this sounds like a common bug to you guys sorry I haven't done much scrounging around the forum but it seems like power usage bugs are pretty common

Re: Battery consumption analysis
 

3 days with constant data connection with msn/gtalk/skype? In your dreams. With no data connection, wifi off, good network quality, no widgets, couple of phone calls and messages. Screen mostly off. Maybe 3 days.

It´s not if you use data connection.

You can use offical top also. in htop you can move right with right keyboard key.

Sounds pretty weird, but we can´t help you at all. You have to at least tell the process name.

Bugs and bugs. Some protocols are power hungry by design so there is not much you can do.

Re: Battery consumption analysis
 

**** i really should have figured out to type "top" into xterm. -_-

yeah i know :P dont say it. htop was taking up 10% ergh man i fail.

ok but talking battery usage here, i'm connected to msn gtalk jabber all day, fetching mail every 30mins.

widgets on desktop are calendar, countdown, media player and second desktop is dataplan monitor and conversation.

this is along with a few shortcuts/contacts/pages.

what has gotten you guys more juice?

Re: Battery consumption analysis
 

These kind of services use the connection the whole day, sending staying alive messages all the time. That is draining your power. turn those off for a day and report back

Re: Battery consumption analysis
 

Please explain? I'm not sure if this is a bug or a feature?!?

Re: Battery consumption analysis
 

Can we make it a widget available on ALL desktops?

Re: Battery consumption analysis
 

http://img534.imageshack.us/img534/2...0021618265.png

there is my battery usage today, connected to a 2g packet data connection the whole time, with msn, jabber & gtalk enabled + fetching mail every 1/2hr. I did a couple of calls later in the day and some moderate/light use of the phone just writing some todos etc.

is that normal? :P I'm not sure hahah I'll check back tomorrow with details about how not being connected to IM services deals with the battery.

Re: Battery consumption analysis
 

my analysis from PR1.1 to PR1.1.1:

http://img138.imageshack.us/img138/5...0021701132.png

description:

1. yellow lines with pink dots in the middle are the areas where i did different things. ^^

2. areas from left to right:
* idle (wlan on) PR1.1
* short charge and then the software update to PR1.1.1 (high cpu usage -> fast battery draining)
* charging again
* playing halo 3 (on xbox360 - not n900 xD) and listening to music with n900 (battery drains middle-fast)
* charging again
* idle (wlan on) PR1.1.1
* charging (moved over some modded files)
* (no dot - last area) installed desktop execution command widget and played around a bit

3. red lines are tangents (blue dot as tangent point) for PR1.1 (top line) and PR1.1.1 (bottom line) IDLE (wlan on)

overall (for the first few hours after updating) there seem to be some optimizations :D
(this bug seems to be fixed: https://bugs.maemo.org/show_bug.cgi?id=6615)

Re: Battery consumption analysis
 

once again:

at red dot the lines are at same height. both idle (without wlan).
top line PR1.1.1 and bottom line PR1.1:

http://img41.imageshack.us/img41/4577/vergleicha.jpg

after few hours there is a small cut in PR1.1 but that's where i wrote two sms xD

Re: Battery consumption analysis
 

I simply love the battery-eye application! However, I have some problems. The first time I installed it, it did not generate an graph, but after a reinstall, It worked perfectly for a couple of days. But then again the graph stopped being drawn. After yet another reinstall it worked just for a few hours (see attached image). A reboot does not help

Re: Battery consumption analysis
 

you have a button for that? lucky you! :))

Re: Battery consumption analysis
 

The most disturbing behavior I encountered concerns the standby consumption, that manifests different slopes even if the same conditions was applied (no wifi, 2.5G connection, PR 1.1.1).

In the first plateau, 6:30-10:30, the slope is almost flat, ideal. The second, third, fourth, and fifth plateaus, occurs with the same slope, dramatically slanting. The latter plateau shows an average slope.

Sometimes it's enough to just switch on and off the screen (with the sliding button in the right side) AND NOTHING ELSE to make the slope worst!

What's the explanation??

Re: Battery consumption analysis
 

I think there could be huge gains if the device were optimized. However, NOKIA has not been efficient at anything else, no reason to think they will suddenly get a clue, especially when this was a Legacy device the day it was released apparently.

Re: Battery consumption analysis
 

The straight lines would suggest the screen has been off. In my experience the meter updates about once every 2 hours unless the screen is activated.. As the author said, drawing a line between the points of measure creates the false impression that we know what happened in between

I would fully expect that the longer the device has sat with screen off, the less steep the curve will look, as the consumption that took place when screen was on becomes a much smaller part of the total consumption between the two points.

Re: Battery consumption analysis
 

11 pages and not one polynomial regression... tsk, tsk ;)

Re: Battery consumption analysis
 

maybe the app should also mark with dots?

Re: Battery consumption analysis
 

on a day trip to Vienna by train I had extremely high batt consumption while normal usage (some Skype, some GPS+Maps, some emails, some SMS, some Notes...)
I found out two things:
1. setting internet connection to automatic connect any network is sucking battery fast when moving around.
2. Setting to connect to WiFi automatically but not 3G is okay while at home but while walking and shopping it sucks too much.

Leaving connection manual is so much better if there is no power outlet in reach.

Re: Battery consumption analysis
 

This has been true with the previous devices.

Re: Battery consumption analysis
 

has anyone campered these graphs from battery-eye to those of batterygraph? it seems to give a flatter line after chargin but before use

Re: Battery consumption analysis
 

Has there been resolution or a fix to the wifi bug? I had my n900 plugged in overnight, within 1-2 hours after I woke up I was down to 40% battery. The back of the phone was also very hot, which someone said related to the wifi bug. Anyone? I don't want this to happen, luckily I don't work today, if I did I'd be very mad.

Re: Battery consumption analysis
 

I've measured IR temps on mine when it's burning thru the batt from WiFi nd it's about 88-90 degrees F. With ambient temp about 72 F.

Re: Battery consumption analysis
 

Being hot is related to using up the battery quickly - the power used has to go somewhere, so it's dissipated as heat.

Re: Battery consumption analysis
 

have a look at this one, my consumption goes up?!?! My heavy consumption is due to being connected the whole day and lestening to tunes ;)

still odd that the consumption goes up... I was wondering if it was due to the temperature... we have a heater in the office and it is on and off at different intervals.

Re: Battery consumption analysis
 

So can you guys tell me if this is pretty typical?

I'm connected via edge most of the time, I connected to my work's wifi network for maybe an hour or so. At one point the battery was getting somewhat warm because I had imdb's website (with flash) opened and I noticed it was causing pulseaudio and another process to each consume 20% cpu... I didn't close it for 35 mins or so cause I was in a meeting...

Edge, MFE and gmail both updating every 15 minutes, snet probably 10 texts, used the phone for 5 minutes. I'll probably end up getting around 14 hours useage before the phone dies. So 7a - 9p.... with what I consider VERY moderate usage.

What that translates to is a problem if I don't have a spare battery. If I am traveling for work, get up at 5am, the phone will easily be dead by 7pm (probably sooner due to more active phone use while traveling) when my flight would typically land and I'll have no phone for my drive home.

If this is typical I'll probably sell the phone. My comparison right now, albeit it may be a bad one is my iphone (bad comparison because of lack of multitasking), but my iphone ocnnected via wifi/3g ALL of the time, same usage, I'll have 30% left at like 11pm.

Thoughts?

Screenshot (notice I didn't download batteryeye till 11am)-
http://farm5.static.flickr.com/4007/...7d76bfbe_o.png

Re: Battery consumption analysis
 

So you have iphone with flash support?

no really =) 14h is actually quite good usage time. Please read this thread and do at least following, remove widgets and reboot once in awhile.

.edit do you use any im?

Re: Battery consumption analysis
 

Actually, besides multitasking, iPhone lacks any kind of tasking, when in standby/sleep... :)

Re: Battery consumption analysis
 

I have weather widget updating every 4 hours (if that drains battery, thats a joke). Calendar is on there, besides that theres nothing....

And no I don't use any IM.