GPS navigation on EPD? to save battery? - YotaPhone

hey guys,
i tried today mirroring my navigation app to the EPD screen.
in my mind, it should save some battery, but actually checking the battery percentage, I didn't notice any improvement over just using the main screen.
what do you think guys? does it really save battery?
THX

Using the epd saves battery only if it doesn't need to be updated. If the screen is redrawn all the time then the savings are minimal if not nonexistent. Personally I habe disabled all the animations from developer settings, but mainly it depends on the app how efficient it is.

You might also want to look at this: http://m2appmonitor.com/google-maps...e-2-most-popular-android-gps-navigation-apps/
I suspect that the screen is actually not the most draining thing in the app. .. I found that with Waze my old Samsung phone would barely be able to charge even when plugged in and running the app... and you don't need that sort of power when looking at the screen!

Related

Batti (battery above start bar) on X1 CPU load *RESOLVED*

Hi all!
Not sure if this is isolated to the X1 or not, but I found that Batti (yes, I know it's discontinued now... but it is opensource freeware, so anyone can improve it now!), I found on my X1 that the CPU load, while charging and with "colour gradient" on, is constantly about 10-20% CPU load usage. My X1 would actually heat up (the battery temperature would increase) because of this, and not only that, it would take longer to charge up, because Batti was simultaneously draining the battery. And of course the phone was somewhat more sluggish.
I was about to un-install it, but then I decided to turn OFF the colour gradient function. BAM... CPU usage went down to 0-1%.
I tried turning off the "Charging indicator) which is simply stopping it from scrolling the bar left-to-right when it is plugged in, but that didn't make any difference.
The BIG DIFFERENCE is the Colour Gradient function. At least for the X1, i *HIGHLY* recommend you TURN IT OFF.
This problem might affect other phones as well, maybe only on WVGA (since we have a wider high resolution screen, perhaps Batti has to calculate too much to make the colour gradient smooth as it is?)... so maybe the Touch HD which also has the same resolution has the same problem with CPU load / Battery drain?
Anyway, thought I would bring this up, because I know quite a lot of people talk about battery drain while using Batti, and now I have identified the cause (and remedy) for this.
Hope this benefits others, and hopefully someone can maybe optimize the color gradient algorithm so it is not so CPU intensive!
(oh, and sometimes when we slide the keyboard out to change orientation or slide it back in, batti takes some time to redraw the bar... this also improves after you turn OFF this colour gradient function!)
Thanks!
Thanks man I didn't notic that but however I've noticed that something drains the battery very fast. Thanks for the useful info!
linkrage said:
Thanks man I didn't notic that but however I've noticed that something drains the battery very fast. Thanks for the useful info!
Click to expand...
Click to collapse
Yeh, I just thought I'd post this here, so that if someone is doing a search, then they can find a solution easily!
no more automatic switch off
Hello, I have a touch HD with Batti installed, and a very important battery drain since installed. I've tried to remove the "gradiant option" as you said, and it seems to be better, but thought, i remarked that my phone doesn't want to turn off its screen after 20 secs of inactivity, as i esked it to do via the autonomy settings ant S2U2 settings, so i think it can explain the battery drain too. Let me know if u have the same problems with your phones, please.
Not exactly resolved, but it's a workaround.
No more prob
OK, good for me, i think my problem was not Batti's fault, but a new transparent theme fot tf3d that disabled the automatic screen shutdown, cause since i removed that (very nice) theme, i have no more battery drain with batti re-installed and "colour gradiant" turned off. Thx for the trick, so ...
Batti discontinued? -- http://code.google.com/p/batti/
May i know how do you guys check for the CPU usage?
I don't ... I'm only talking about the battery drain.
sitelister said:
Batti discontinued? -- http://code.google.com/p/batti/
Click to expand...
Click to collapse
Yes, it is, but the author made it open source, so anyone can continue it now!
Thumbs Up!!!!
Yup! This actually did the rick for me. I cant comment on battery consumption yet cause i just tried it but Batti is definitely performng better now. Screen switching is zippy. With gradient on, batti used to take forever to appear when waking up the device from sleep mode (used to show the charging purple colour) but now that is also very fast as well.
I used to think that turning gradient off was ugle but it is actually more pracical now that im using it; the battery is fully green when full, yellow when below 50% (i think) and red when under 10%, even looks neater than with gradient on!
Good job!
Thanks for the post! Confirmed that CPU usage has dropped considerably from 7-8% to 0.2-0.3%. I had switched to a different battery indicator for awhile, but happy to be using batti again for all of its other features!
istnelane said:
May i know how do you guys check for the CPU usage?
Click to expand...
Click to collapse
I use this:
http://www.acbpocketsoft.com/Products/acbTaskMan/acbTaskMan-Overview-6.html
Edited: ignore this

[Q] Help, what is your battery drain, and why mine is sooo High???

First - let me state - and it is true - that I used the search function.
I read pages and pages of advices to lower battery consumption on my HD2 Android... without success...
First I used an SD ROM. I read that a NAND would improve battery life. So this is what I did.
I am also using SetCPU with a profile when battery <30% and another one when screen is off to LOWER the CPU speed. In normal use, I set CPU speed at 768MHz trying to lower power consumption...
I use a task killer to free memory and prevent silly programs to drain my battery off...
I use Juice Defender to control wifi, data, etc...
And with all of this in place, my "Current widget" shows a consumption of 180mA with screen on doing nothing, up to 350-400-500!!! mA when acutally using the phone wifi+sync...
In the forum I read consumption like 3 mA - 9 mA!!! This is FAAAAAR Way lower than what I ever had with different builds...
So this is an help scream to everybody: what is your battery drain, and why mine is sooo High???
Hint: I am also a fan of LCD Density changer, with setting at 165... can this have an influence on battery drain??? I reverted to the original 240, doesn't seem to have any influence...
Thanks for your help,
Looki
My drain is 3-9 ma in STANDBY ONLY now and again slightly more but mainly the values stated. And my screen on between 120+160ma. Turn off auto brightness if you have it on, and set it at the lowest your comfortable with (display is big batt drainer) I DONT use taskillers as they do more harm than good. I use NO undervolting and only the default settings with my rom. I have low lcd density setting 167 i think. Lcd density has no effect on your battery drain!
Found this here. http://forum.xda-developers.com/showpost.php?p=13151738&postcount=11296 Might be of some use to you? (from hyperdroid gbx thread)
Whats youre rom?
And do u use ext partition on sd?
I dont even use SetCpu anymore. Only taskkiller.
Auto-brightness is on
Auto sync is off.
Im using UD 3.3 nand from crawlingcity
Stansby is 3 -6 ma
Using round 160 to 250.
Sent from my HTC HD2 using XDA App
How long does your battery last from 100% to self shut down? As for Current Widget, keep in mind that when people say "Standby", its generally referring to the screen being off. Set current widget to update every 30 seconds, and turn the screen of for 40 seconds. Then quickly turn the screen on, unlock, and check what it is reading then.
If its still high, try "Force Stop" applications in the Settings > Applications menu one by one, i've had to do this more than once to locate problem apps that were destroying my battery in standby mode.
I'm knew to Android, let me share you my idea.
I use UD3.3
I removed google stuff
gmail, search, etc
No auto sync
Location off
Always kill market when screen off.
I use beautiful widget for weather manual refresh.
I use battery widget
Auto level for screen
sometimes WIFI on
2g Only
2 or 3 calls,total of 3 to 4 min a day
My battery stay 48 hrs in STBY mode.
I think the most draining factor is
1) google stuff they are battery hog.
2) screen
3) bad written programs (every time they check connection to
internet or looping for doing something, looping will make
CPU in high frequency).
4) bad device driver such as BT which is known as 60ma
drain. it is not the hardware but it is the software doing
the drain.
thanks
pc2058 said:
I'm knew to Android, let me share you my idea.
I use UD3.3
I removed google stuff
gmail, search, etc
No auto sync
Location off
Always kill market when screen off.
I use beautiful widget for weather manual refresh.
I use battery widget
Auto level for screen
sometimes WIFI on
2g Only
2 or 3 calls,total of 3 to 4 min a day
My battery stay 48 hrs in STBY mode.
I think the most draining factor is
1) google stuff they are battery hog.
2) screen
3) bad written programs (every time they check connection to
internet or looping for doing something, looping will make
CPU in high frequency).
4) bad device driver such as BT which is known as 60ma
drain. it is not the hardware but it is the software doing
the drain.
thanks
Click to expand...
Click to collapse
Bt drain has been fixed, wil now get you 6-15 ma.
Google stuff aint bad, just set update frequentcy to manual.
(Helps with alot of other programms that require internet.)
Sent from my HTC HD2 using XDA App
[Ultimate GUIDE] Increase your battery life on Android
Thanks guys for your help!
I made a compilation of all tips I could collect and/or find by myself.
They are here: http://forum.xda-developers.com/showthread.php?p=15229416
Regards,
Looki

Just Got My G2... Need help with doing a few things.

Hi Guys,
I just got my LG G2 D802. Have a few queries about setting up stuff.
Firstly, what is the PC software you need? Basically I heard its some suit and tool for the phone.
Secondly, I'm trying to install the original 4.3.1 camera apk but its refusing to install.. Do I have to root and flash it or is there no other way??
Thirdly, how does USB OTG work?
Thanks
Sean473
Sean473 said:
Hi Guys,
I just got my LG G2 D802. Have a few queries about setting up stuff.
Firstly, what is the PC software you need? Basically I heard its some suit and tool for the phone.
Secondly, I'm trying to install the original 4.3.1 camera apk but its refusing to install.. Do I have to root and flash it or is there no other way??
Thirdly, how does USB OTG work?
Thanks
Sean473
Click to expand...
Click to collapse
If I remember correctly the pc software will auto install when you first connect the phone to your PC
You will have to root your phone and have a custom recovery to install the 4.3.1 camera. You have to copy the zip file over to your phone and flash it using the recovery.
You will need a USB otg cable to connect peripherals such as keyboard, mouse, usb drive. USB dac
Sent from my LG-D802 using XDA Premium 4 mobile app
Yup had the proper software... New issue my battery life is dreadful.. got 2.5 hours screen time at 70% brightness and screen has only used 20% of the battery.. Android System has used 35% and Android OS 13% (its caused the phone to stay awake for 4 hours but its stopped now). I have google now enabled but have disabled the location services so that shouldn't be causing issues. Also I've only been using apps and not gaming at all. I have DS Battery Saver to force deepsleep.
Also wakelock detector is posting totally inaccurate stats. Isn't there any other app like it? HELPPPPPPPPPP!
Ok It seems the wakelocks are caused my the alarm_rtc and Power Management service. I've reduced syncing to a minimum and also turned off GPS... Additionally, does anyone know a app like Sony's Stamina Mode where wifi-data is auto off when the screen is off and no app needs it?
Sean473 said:
Ok It seems the wakelocks are caused my the alarm_rtc and Power Management service. I've reduced syncing to a minimum and also turned off GPS... Additionally, does anyone know a app like Sony's Stamina Mode where wifi-data is auto off when the screen is off and no app needs it?
Click to expand...
Click to collapse
You shouldn't really need any of those things anymore. My advice is to just use it for a couple of days and see how it goes. Rooting it and freezing as much LG bloat as you can and using Lux to control the display is also a good advice.
WiFi uses minimal power, you can safely leave it on along with GPS and NFC and still make the phone last all day with intense usage (excluding sitting around flashing and modding your phone all day ofcourse )
You should try Better Battery Stats for getting good battery data.
Incep said:
You shouldn't really need any of those things anymore. My advice is to just use it for a couple of days and see how it goes. Rooting it and freezing as much LG bloat as you can and using Lux to control the display is also a good advice.
WiFi uses minimal power, you can safely leave it on along with GPS and NFC and still make the phone last all day with intense usage (excluding sitting around flashing and modding your phone all day ofcourse )
You should try Better Battery Stats for getting good battery data.
Click to expand...
Click to collapse
That's exactly what I've used... I' managed to get 4 hours screen time which isn't bad but considering only 20% of my battery was used by the screen, I'm sure it will do much better... I'm charging it now again..
I wouldn't neccecarily interpret the battery stats that way. Whenever you have your screen on, you also increase battery consmption by associated services. I don't think the much-referenced screen on time is a good measurement as general usage pattern.
It also depends if you have WiFi where you are, and if your coverage is good. I use only a third the battery when at university with good LTE coverage and constant wifi than at work, with no wifi and poor reception.
If you don't actually have problems with the battery after removing all the LG cruft in the system, I'd recommend just being content with how it is. If the phone doesn't have enough battery to last two full days, then how much juice it has left after a day with intense usage shouldn't really matter much, providing it does last through it.
Incep said:
I wouldn't neccecarily interpret the battery stats that way. Whenever you have your screen on, you also increase battery consmption by associated services. I don't think the much-referenced screen on time is a good measurement as general usage pattern.
It also depends if you have WiFi where you are, and if your coverage is good. I use only a third the battery when at university with good LTE coverage and constant wifi than at work, with no wifi and poor reception.
If you don't actually have problems with the battery after removing all the LG cruft in the system, I'd recommend just being content with how it is. If the phone doesn't have enough battery to last two full days, then how much juice it has left after a day with intense usage shouldn't really matter much, providing it does last through it.
Click to expand...
Click to collapse
Well its much better now with the second recharge... Its about 16% Android System (Can't really do anything about this)... 12% Android OS with most of the wakelocks coming from the damm power management service... Google search was causing quite a bit of drain so turned off google now for now... Even Siri is better and musn't be causing so many damm ****ing wakelocks...
Sean473 said:
Well its much better now with the second recharge... Its about 16% Android System (Can't really do anything about this)... 12% Android OS with most of the wakelocks coming from the damm power management service... Google search was causing quite a bit of drain so turned off google now for now... Even Siri is better and musn't be causing so many damm ****ing wakelocks...
Click to expand...
Click to collapse
Bump....
I have another general question. When you swipe up the home button to access google now and quick memo, is there a way to add more options to that swiping? I've seen a picture on Andoid Authority where you could also access voice mate etc...
Sean473 said:
I have another general question. When you swipe up the home button to access google now and quick memo, is there a way to add more options to that swiping? I've seen a picture on Andoid Authority where you could also access voice mate etc...
Click to expand...
Click to collapse
Bump anyone???????
Sent from my LG-D802 using xda app-developers app

[Q] How to optimize battery life od Note 3 ?

Hi !
I'am interested in optimizing battery usage/life on my Note 3.
I want to know what functions is free to switch off or reconfigure to decrese battery usage
But I dont want to cut phone functonality too much...
I'am not interested to tips like:
- switch Wi-Fi OFF
- switch Bluetooth OFF
- switch GPS OFF
- disable synchronization
- disable background data
- disable S Beam, NFC, Air Gesture, Air View, Smart Stay
- disable vibrations
- switch phone OFF when not using
- turn Power Save mode ON
- turn Airplane Mode ON
- lower down CPU/GPU frequency
Because they make phone much less usable and fun because it's many nice and amazing functions wont work...
I've already applied following tips:
- disable Google Now
- disable raporting GPS position
- disable location history
- turn screen brightness to AUTO
- remove unused/unneccecary widgets (especially this with auto update/sync)
- turn off autostart of unnececary apps (with All-In-One Toolbox)
- turn off "notifications from server" in "Samsung Apps" settings
Because i know that following tips are working and have positive impact on battery life (about 20% more power in my case)
I can't root phone (MJ7 firmware...) so I cant use Greenify to make more battery life...
If somone know some more configs/tips/apps that can be applied to increase battery life I will be very interested
- turn screen brightness to AUTO
Click to expand...
Click to collapse
This I believe is a myth, if anything AUTO uses more battery IMO. I set my brightness at around 40% or so and I get 30 hours (with 3-4Hours screen time) or so average out of my battery, Only other thing I disable is GPS.
It's more about how/what you actually use on your phone rather than what you can disable and not use.
I think you're looking for a reduction in "idle" battery drain as in use battery drain is kinda unavoidable.
There are tools like "Tasker" you can use to automate all the radios
you can use "app ops" to stop all the apps that push your location (this will do the most)
"autostart manager" allows you to stop apps from running all the time.
Do you have an n9005? If so the Snapdragon Battery Guru app definitely helps by switching your networks on and off based on usage, etc.
Sent from my SM-N9005 using Tapatalk
dr.m0x said:
Do you have an n9005? If so the Snapdragon Battery Guru app definitely helps by switching your networks on and off based on usage, etc.
Sent from my SM-N9005 using Tapatalk
Click to expand...
Click to collapse
I never thought about that, I had that on my HTC One. But I didn't find that it helped much in all honesty. I'd be interested to know how well it's responding with the N9005 though, are you using it?
radicalisto said:
I never thought about that, I had that on my HTC One. But I didn't find that it helped much in all honesty. I'd be interested to know how well it's responding with the N9005 though, are you using it?
Click to expand...
Click to collapse
Yes I am. It doesn't make a night and day difference but it definitely makes a difference. I even uninstalled it to double check that I wasn't imagining it, now I'm annoyed with myself because it's still learning again.
Sent from my SM-N9005 using Tapatalk
Without all you wrote.. rules are those:
1) NEVER close apps (if you close the app ram pages will be deleted, so, it's needed to re-upload those, it has an huge energy consuption
2) use the phone "slowly".. i'm meaning, the fingers moves
3) if you are reading a text, read all the page than slide to see the new text, it's to prevent an high ramp up of frequency for long time
radicalisto -> thx for tip
nakedtime -> App Ops is quite good app ! Thx But "AutoStart Manager" is not working on my phone (crashing)...
dr.m0x -> I need to test this app thx
It's npt a good way to install an app to controll emergy consuption..
App needs cpu usage.. cpu ramp up..
so, you disable the radios for little time, and energy spent to do it could me more by cpu ramp up frequency
i suppouse you have the snap version.. and.. as i can see, snap has a good ondemand sysfs setting, it means it doesen't grow up frequency too fast, so, more than this is quite impossible
Only with an huge undervolt
I've installed this "Snapdragon Battery Guru"... now it's in "learning mode" I will see if it will help or not...
I have better replacement for "AutoStart Manager" and it's called "All-In-One Toolbox" which have the option to chose apps for autostart (and has many more other features) - i'am using it for quite a while and it's working fine
iba21 said:
It's npt a good way to install an app to controll emergy consuption..
App needs cpu usage.. cpu ramp up..
so, you disable the radios for little time, and energy spent to do it could me more by cpu ramp up frequency
i suppouse you have the snap version.. and.. as i can see, snap has a good ondemand sysfs setting, it means it doesen't grow up frequency too fast, so, more than this is quite impossible
Only with an huge undervolt
Click to expand...
Click to collapse
Snapdragon battery guru raplace the sysfs of the governor
First impressions from this Battery Guru are not so good... Battery is running down faster than without it... Maybe because its still in "learning mode"...
Yup just cause it's in learning mode, it'll settle once it's learnt everything
Sent from my SM-N9005 using XDA Premium 4 mobile app
I will wait until "learning mode" ends and see if it's working
I am not a heavy user so a battery last more than a day sometimes 3 days.If I was I would just get an extra battery and not obsess over trying to maximise battery life.One of the advantages the Note has over most other phones is a removable battery.Take advantage of this feature.It takes less than minute to change a battery.
Replacing battery requires switch off the phone and taking off back cover of the phone (i'am affraid that it will damage it after many opens... i'ts a plastic after all...) and then put back cover and switch on the phone... It's troublesome and not comfortable...
FPPfan said:
Replacing battery requires switch off the phone and taking off back cover of the phone (i'am affraid that it will damage it after many opens... i'ts a plastic after all...) and then put back cover and switch on the phone... It's troublesome and not comfortable...
Click to expand...
Click to collapse
It doesn't take long to switch the phone off.Mine takes 10 seconds.Taking the back off and replacing the battery takes another 15 seconds.Turning it back on takes another 15 seconds.All up less than a minute.
I can imagine how some people might be reluctant to take the back cover off almost daily.The back cover feels a bit flimsy and it's reasonable to assume it won't be durable with that sort of usage.I have the Note 1 and after two years of almost daily taking the back cover off it is still fine.The Note 1's battery life is horrible and even with light use I don't get a full day from it.Most people replace their phone after 2 or 3 years anyway so I don't think durability is a problem unless maybe you plan to keep it for 5 years.
But I can understand why some people might be reluctant to repeatedly tear the back cover off their brand new pride and joy.
I guessed everyone had their own way of energy conservation. For me, I use dark wallpaper. For our screen (Super Amoled), Black = LED off. LED off = not using energy. So in theory, black wallpaper or black background should uses much less energy than bright sunny light wallpaper.
vandals01 said:
I guessed everyone had their own way of energy conservation. For me, I use dark wallpaper. For our screen (Super Amoled), Black = LED off. LED off = not using energy. So in theory, black wallpaper or black background should uses much less energy than bright sunny light wallpaper.
Click to expand...
Click to collapse
This is very true for Amoled displays.The only time I notice my N3 drains the battery more than usual is when the display shows a lot of white such as internet surfing and using WhatsApp.Watching a movie does not display a lot of white and the N3 battery life becomes remarkable.
Battery
Go into the application settings and deactivate all samsung apps u dont need! Saves alot of Battery. Don't charge ur note if its Not empty. Just charge it if u are under 25%. You can also work with Tasker - it helps you to save your Power if u change yours settings automaticly. Also dont change ur brightness all the time
Hope it helps

greyscale display like s5's ultra power saving mode?

hi everybody, I use my s4 everyday and sometimes my phone dies before getting home. The main battery drainer is of course the screen, so I noticed that the new Galaxy S5 has a new feature, the ultra power saving mode, which above the other things set the display rendering to grayscale, which can be very useful in terms of battery life in an AMOLED screen as far as I know. I think it would be nice if there would be something like that on the S4 though, the display colours are great but sometimes you just don't need them, and they only drain precious life juice from our phone... Is there something like that for the S4? I'm not looking for something which turns itself on automatically when battery is low, I'm fine with a manual application (maybe a switch on a widget)... is there anything like that? Is it really convenient for the battery?
mIRChele said:
hi everybody, I use my s4 everyday and sometimes my phone dies before getting home. The main battery drainer is of course the screen, so I noticed that the new Galaxy S5 has a new feature, the ultra power saving mode, which above the other things set the display rendering to grayscale, which can be very useful in terms of battery life in an AMOLED screen as far as I know. I think it would be nice if there would be something like that on the S4 though, the display colours are great but sometimes you just don't need them, and they only drain precious life juice from our phone... Is there something like that for the S4? I'm not looking for something which turns itself on automatically when battery is low, I'm fine with a manual application (maybe a switch on a widget)... is there anything like that? Is it really convenient for the battery?
Click to expand...
Click to collapse
You can find the ported power saving mode from the S5 here:
http://forum.xda-developers.com/showthread.php?t=2789666
Or there are apps that provide similar functionality below:
http://forum.xda-developers.com/showthread.php?t=2729948
or
https://play.google.com/store/apps/details?id=com.webzler.soslauncher
mIRChele said:
hi everybody, I use my s4 everyday and sometimes my phone dies before getting home. The main battery drainer is of course the screen, so I noticed that the new Galaxy S5 has a new feature, the ultra power saving mode, which above the other things set the display rendering to grayscale, which can be very useful in terms of battery life in an AMOLED screen as far as I know. I think it would be nice if there would be something like that on the S4 though, the display colours are great but sometimes you just don't need them, and they only drain precious life juice from our phone... Is there something like that for the S4? I'm not looking for something which turns itself on automatically when battery is low, I'm fine with a manual application (maybe a switch on a widget)... is there anything like that? Is it really convenient for the battery?
Click to expand...
Click to collapse
Try C.F.lumen by chainfire. Turns everything greyscale, not just the launcher. Tried it so far, it seems to save some juice, but havent done any scientific testing so hard to say for sure
try this
this the easy step to get greyscale mode like samasung galaxy s5 UPSM on any android ,,, i hope this help
watch this!!
youtu.be/OH-13ECUn0Y

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