Battery Life improved by placing phone face down
 

Now this might sound weird but! I thought the standby/notification screen used minimal power?

But over the last 3 days I have been placing my phone face down and I'm now getting a much higher standby time!

i.e. I normally turn off at night to save power but if i leave it on I would loose about 1-2% an hour!! with the phone face down I only loose 4% if left in flight mode I loose only 2% (over 8 hours)

So far I have made the odd call (35 minutes), texted as and when, so minimal usage but I have so far got 3 full days out of it and about 18% to go so think it will do 4 days!

I have attached some screen shots! Can others try this? better still you could try turning the standby screen off! but I love it too much!

Please report back any improvements in the N9s standby time!

Re: Battery Life improved by placing phone face down
 

TBH I have always wondered why NO other phone has this feature, even the flagship androids can't even seem to do this function and hey have the same AMOLED screens allowing for utilisation of the Low Power Mode!

I have a feeling this was optimised for battery by Nokia, but still drains battery and thats the reason nobody else implements this feature :(

Useful but at a price :(

Re: Battery Life improved by placing phone face down
 

we can maybe fix this, maybe?

Re: Battery Life improved by placing phone face down
 

Keep the phone in a case/bag/anything that covers the proximity sensor and it will have the same effect.

Re: Battery Life improved by placing phone face down
 

didnt actually know it has that much impact on battery life, tho ive always had my phone facing table in night, or else that damn clock lights whole room :p

Re: Battery Life improved by placing phone face down
 

I have a habit of keeping it facedown.... The N8's speaker was on the back and the speaker used to get muffled if placed on its back. But I was just looking at the screen at night playing around with the proximity sensor, and i noticed the whole screen lights up, slightly but it still lights up.

Re: Battery Life improved by placing phone face down
 

Yeah if its in a bag or pocket then yes the sensor is covered but i tend to leave it on my desk at work or at home on my coffee table.

Doing this does improve the battery life a lot for me when in standby mode! this or course goes out the window when you are using it a lot for browsing etc!

also I have noticed the standby screen percentage is quite high when doing this? its normally only 2-3% according the "battery usage"

Re: Battery Life improved by placing phone face down
 

Agreed.

same things happens on Symbian ^3's standby clock-screensavers (from beta labs)

slightly , but still... it lights up

Re: Battery Life improved by placing phone face down
 

its a shame we cant make more use of the led in the bottom corner like the n900.

i used to have different colours for different things etc...
then we could turn the standby clock off and just use the led to let us know about missed calls, tx and emails

Re: Battery Life improved by placing phone face down
 

i feel like i am the only one who doesnt use the stand-by screen.. lol, i dont like it cause i can see a whole bunch of those "screen blobs" and it just looks horrible

its still a cool feature though

Re: Battery Life improved by placing phone face down
 

LPM is the best thing since the smartphone was invented. And if I don't want it to show the time while on the table, I just cover the proximity sensor with a piece of paper.

Re: Battery Life improved by placing phone face down
 

i am not going to disagree with you, considering i think its awesome. i just dont like how its constantly using the screen 24/7 :( it makes me paranoid that i will get more screen burn lol

Re: Battery Life improved by placing phone face down
 

That's why it moves around :P

Re: Battery Life improved by placing phone face down
 

yes, it does. but even though the whole screen looks like it is off it is slightly on.. go into a pitch black room with it on and you can kind of notice the whole screen is lit, just a tad. it still makes me paranoid considering its a amoled screen and they have a bad rep of not having a good life span :/ i wish there was a LCD that had as good blacks as a oled screen lol, thats asking for too much though :p

now if it wasnt a Nokia that is pretty rare in the US i wouldn't give two craps about it haha, and leave it on all the time. i treated my htc amaze like crap, but i treat this phone like a baby xD

Re: Battery Life improved by placing phone face down
 

Theres nothing to fix, its just the way it is.

Having a screen on even in Low Power Mode still uses Power :(

Only fix would be to disable the LPMS screen.

Re: Battery Life improved by placing phone face down
 

Dunno about you guys but I find the always on standby-screen one of the BEST features of the N9. I often leave me N9 on my desk while its on silent so one quick look at the phone tells me the time and any notifications.

I reckon spamming the phone wondering if you have a new message/missed call probably uses more power than the LPS screen?

Maybe the battery sacrifice is quite strong but the fact I easily get around 2 days from one charge, I will take the chance ;)

Re: Battery Life improved by placing phone face down
 

correct, not even Symbian devices can match N9's Low Power Screen usefulness.

I believe this patterned everywhere by Nokia, which makes Apple can't use it and claim it as their own invention...

and maybe Jolla OS won't be having this feature too :(

Re: Battery Life improved by placing phone face down
 

I agree and what is, if you left the room for a short time while there was a calendar event. Since the calendar events don't repeat the event by ringing (what I hate), a look on the screen is the only way to notice this event.

P.s.: I loved the led notification on N900!

Re: Battery Life improved by placing phone face down
 

yeah i wish we had a option to use out white led light as a notification light for people who dont want to use the standby screen. i like the position of the light on the n9, i just wish it did more.

Re: Battery Life improved by placing phone face down
 

Did you look at this thread:
http://talk.maemo.org/showthread.php?t=85568

I just got my LED notification working and have turned off my LPM

Re: Battery Life improved by placing phone face down
 

Can't understand why; AMOLED's do not have a backlight

Re: Battery Life improved by placing phone face down
 

I have tried many times to see that screen is ON when in LPM, but for me it is OFF. I go to completely dark room, place my finger over LPM clock so my eyes get more sensitive, but still screen is completely black for me.

Re: Battery Life improved by placing phone face down
 

i have to add that i too did a similar test to zlatko above and really the screen is off... There is NO backlight on the AMOLED...

Re: Battery Life improved by placing phone face down
 

I have to disagree here, even though I know that there is no backlight and I didn't expect this to happen, but in a dark room the screen is slightly lit, as it was on the i8910. Probably some current needs to pass through the tft matrix to reach the lit pixels and makes the led's glow slightly.

I can make a photo of it too if you like, later.

Re: Battery Life improved by placing phone face down
 

No it's not. It is completely off except the text on the standby screen.

You can tell that it turns off "a second time" when locking the phone. First it gets black, then it turns off even more quickly after that.

If you look at the text on the standby scren you can see that it's jagged. Not smooth and anti-aliased. That's because the screen is completely turned off around the text. That's the magic they use in LPM.

If you have the phone unlocked and look at a black background there will always be a very weak light coming from it that you can see in a pitch black room easily.

Re: Battery Life improved by placing phone face down
 

Sounds like it may be your phone, as I get the same results in the dark as zlatko and thedead1440.

>Probably some current needs to pass through the tft matrix
One of the benefits of TFT is its resistance to crosstalk ...

Re: Battery Life improved by placing phone face down
 

I always have standbyscreen enabled, in combination with Billboard.
Really outstanding feature on N9. don't know how much battery it uses, have no problem.

But would like to have it integrated in powersave mode
PSM on = stanbyscreen off, like it's on N8 for example.

Maybe they didn't implement it in PSM cause battery usage is really low, so no need for that?

But a way to quick switch on/off would be great.

Re: Battery Life improved by placing phone face down
 

Only happens when looking at it at an angle. It's probably related to light spreading around in the screen's glass.

Re: Battery Life improved by placing phone face down
 

No, it is not.

Tested it in my studio's Dark Room -- the N9 is 'invisible'.

No light passes thru the screen.
The screen is not lit, period.

It's another matter that u can 'observe' the AMOLED between the black bezel when the studio's IR is on... but that's b'coz it's a 'LCD screen' while the bezel is (probably) 'black plastic'.

Qorax

Re: Battery Life improved by placing phone face down
 

then there must be something wrong with my phone, i know a lot of you have heard of/seen the blobs that are very common in amoled screens by samsung/nokia/etc, when i have my standby screen turned on, i can see the annoying blobs in certain lighting conditions and it bothers me, maybe its just me having OCD lol.

I still think the whole "double tap" feature to unlock your phone is one of the best features as well, ive never seen a phone do that.

and back on the whole screen thing, when im on the multitask screen and it says "nothing is open", i can see the blobs very well, whenever its on standby i barely can.

Re: Battery Life improved by placing phone face down
 

I'm a big fan of the double tap feature but FYI Galaxy Nexus has already copied it ;)

Re: Battery Life improved by placing phone face down
 

are you serious? -__- ive never knew that, is it a new feature, or has it had it since release?

Re: Battery Life improved by placing phone face down
 

Well my bro used to claim to have it before he reverted to GS2; i'll check with him whether it was true or not before reporting back :D

Re: Battery Life improved by placing phone face down
 

okay! :D that would be kind of cool if another phone had it

Re: Battery Life improved by placing phone face down
 

You can always disable lpms + enter psm (and more) by using Profilematic.

Re: Battery Life improved by placing phone face down
 

Judging from your screens, it seems your 3G & Wifi are both off, what I've learnt from this phone is that if those 2 are off, using it as if it's a 5110, text and call only, this battery can easily go through 5 days without charging, GPS off off-course. So I personally don't see anything special from these results as I get the same if the above mentioned are not in use, Idle can even go as low as 4mA in this case. Therefore I don't think LPM will do any visible good by taking out!

Re: Battery Life improved by placing phone face down
 

just wondered if others could try it! yes i have wifi off as I think it does add to the battery drain! but i have always had it like this and would normally get just over 2 days! (3 days if you include the time that its off during the night!

Re: Battery Life improved by placing phone face down
 

How do you turn wifi off?

Re: Battery Life improved by placing phone face down
 

What's that supposed to mean? U tap on the top screen, the menu appears, if there's a wifi connection active U tap Disconnect. But I suppose U knew that, just one of those lousy jokes.

Re: Battery Life improved by placing phone face down
 

I think he meant how do you turn off wifi scanning without turning off internet connection. Because wifi scanning seemed to be periodical on N9.