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All,
In case you haven't noticed, the battery life of the Nitro HD is kinda bad... Then, when you add ICS into the mix, it gets worse.
When i first flashed the Leaked ICS ROM, I noticed that I was only getting about 8 to 9 hours of battery life with very light use. So, I endeavored to find a way to extend that time without buying an expensive extended battery.
Here are my findings:
GPS
Settings > Location Services
Now we all like the convenience of being able to pull out our phone and find the nearest gas station or fine dining experience. But when you think about it, in our day to day lives, we don't need directions that much.
GPS and Location Services are huge data and energy hogs. If you have ever seen how much can go on in the background when it comes to Location Services, you would cringe. So, set up your GPS like the screenshot below and you will see a little battery life improvement and data usage go down.
Display Brightness
Settings > Display > Brightness
On my Nitro, the display uses up the most energy by far. So, it only makes sense to lower the brightness a bit to save power.
Developer Options
Settings > Developer Options
The Nitro has a powerful 1.5GHz CPU which uses a ton of energy when in heavy use. Some of you might say, "But Matt, I don't use that many apps that need the CPU." Well, it's not that you use them. It's that the ones you have used are likely still running. For example, even though I always use the 'Exit' menu item in Slacker Radio, it will always show up as a running process in Task Manager.
In the Developer Options, there are a few useful ways to fix this problem.
First, check the box next to 'Don't keep activities'. This will cause whatever app you are using to stop completely as soon as it is not on the screen anymore. This is useful if you have the habit of using the 'Home' button when you are done with apps.
Next, set the 'Background process limit' to something other than the standard limit. I have mine set to 4 processes. This will keep processes that are not tied to any specific app in check.
If you use a lot of apps and games that have to render video, it might be a good idea to check the 'Force GPU rendering' box. This will force apps such as games to use the slightly less powerful GPU in the Nitro for video. Thus letting your CPU relax a bit. I have also noticed that heat doesn't build up as much with this box checked.
Lastly, if you want to know about more of the processes that hang in the background that may cause performance issues, you can check the 'Show all ANRs' box. Personally, I found it annoying.
Power Saver
Settings > Power Saver
I was really excited for this feature but also very skeptical. But, I gave it a try anyway. What this feature does is when your battery level gets to a certain percent that you choose, it will turn off power consuming features and change some settings to use less power. I have mine set to engage at 20% battery life.
The tips I have seen say to check every box. But, because of my profession, I have to have 'Auto-sync' left on for emails and such.
With the settings below, I usually see the last 20% of battery last about 4 to 5 hours of medium use.
CPU Clock
*Requires Root*
Unlike all the tips above, this one will require you to root your Nitro.
As I said before, the 1.5GHz CPU uses a ton of power. When you think about it, unless you are playing games all the time or doing some kind of complex calculation as part of your Quantum Physics experiment on you phone, you really don't need all that power. So, what I did was underclocked the CPU to 1GHZ. This gives me the power I need to do what I do but with more efficient energy consumption.
I used SetCPU for this but there are a few other choices out there that do the job just as good.
As you can see from the screenshot below, I have set the max frequency to 1026MHz and the min frequency to 384MHz (I have since set min to 192MHz). I set the governor to 'conservative' based on this post: LINK. But, I think that any of them will help in different ways.
If you are curious, I'm also inserting a screenshot of my benchmarks after the underclock.
CPU Sleep (Suggested by rani9990)
*Requires Root*
XDA user rani9990 suggested an app called CPU Sleeper that, essentially, puts additional cores into an offline mode while the screen is off.
I can see how this would be advantageous because when your phone is in sleep mode, it really doesn't need all that extra power.
I have had it on my phone since i got up this morning and have noticed a significant jump in battery life already.
Results
Before these tips, I was getting about 8 to 9 hours of medium use on a charge.
After, I get roughly 15 to 20 hours of medium use. (It varies from day to day but hovers between 15 and 20.)
If anybody has any other tips, please let me know so I can add them to the list.
You should also tell people to get CPU sleeper (root) saves tons of battery life for me.
Also, disabling haptic feedback saves battery.
Sent from my GT-I9300
! kick ass post!! well-done. fun read too.
thanks!!1
Sadly, battery life on this phone really sucks even with the optimizations. having compared both, I can say that the Nitro HD with optimizations and 3800 mAh Hyperion battery gets about the same battery life as a Galaxy Nexus on the stock ROM and stock battery.
996gt2 said:
Sadly, battery life on this phone really sucks even with the optimizations. having compared both, I can say that the Nitro HD with optimizations and 3800 mAh Hyperion battery gets about the same battery life as a Galaxy Nexus on the stock ROM and stock battery.
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Click to collapse
Perhaps check your running processes. With these tweaks in place, I unplugged my Nitro at 7:45is this morning and right now, at 2:15pm, I have 79% battery left and I've made two 15 to 20 minute phone calls and rebooted about 6 times because of some testing I've been doing for another thread.
Also, the Nitro does have a faster CPU that would take more power than the Nexus.
I have done all of this, in addition to in Settings/Wireless & networks there's "more..." click that and theres "Mobile networks".. and the option for "Use only 2g networks" I'm using that for only texting while at work and doing pretty decent with battery life. since 5:45 to now 10AM texting all throughout that time I'm at 85% battery.
Kct385 said:
I have done all of this, in addition to in Settings/Wireless & networks there's "more..." click that and theres "Mobile networks".. and the option for "Use only 2g networks" I'm using that for only texting while at work and doing pretty decent with battery life. since 5:45 to now 10AM texting all throughout that time I'm at 85% battery.
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I actually don't have that option.
mattman86 said:
I actually don't have that option.
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Uhmm.. maybe its a CM9 only feature.. sorry hijacking then.
i found many of these settings are available in cm9 and after making the changes, it appears to me they work very well. thanks again eh.
UPDATE: I refrained from plugging in my phone all day yesterday and got 14 hours and 32 minutes of medium to heavy use.
Sent/Recieved 191 text messages.
Spent 2 hours and 47 minutes on the phone.
Updated 7 apps from the Play Store.
Played Dead Space for roughly 35 minutes.
Checked Facebook 3 or 4 times.
Read a news article online.
I think the battery did pretty good this time around.
Thanks for helpful tips!
The only problem I got is that the screen turned to back (with music still on) when I started NinjaJump with "Force GPU rendering'" checked.
You don't want force GPU rendering checked...
mattman86 said:
Display Brightness
Settings > Display > Brightness
On my Nitro, the display uses up the most energy by far. So, it only makes sense to lower the brightness a bit to save power
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Click to collapse
What I`ve noticed is that when I set Brightness to 100% I have 3...3,5 hours of wake working screen active time before battery exhausted. It's on ICS leak V18F. But if I set brightness to 30% or "auto" mode I got about 2....2,5max hours of screen active, it exhausts quicker
And secondly, on CM9 it helps me to check off "surface dithering" in 'performance' options. But on official ROMs we haven't this option available to tweak
I found that JuiceDefender has seriously saved me a whole lotta battery. Like seriously. I was getting 12 hours of medium to heavy usage before, and now i can hit 30 hours of medium usage. Then again, Data isn't turned on for me, I use the phone for Wifi and Calling.
rani9990 said:
I found that JuiceDefender has seriously saved me a whole lotta battery. Like seriously. I was getting 12 hours of medium to heavy usage before, and now i can hit 30 hours of medium usage. Then again, Data isn't turned on for me, I use the phone for Wifi and Calling.
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JuiceDefender saved me tons of battery also. But I noticed that it was always waking my phone up for a second at random times. Have you had that issue at all?
mattman86 said:
JuiceDefender saved me tons of battery also. But I noticed that it was always waking my phone up for a second at random times. Have you had that issue at all?
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Nope, but I don't look at my phone every waking second. Maybe it did do it. But I'm getting a serious boost in battery life so I don't really care.
Sent from my LG-P930 using xda premium
For me keeping the wifi on (and thus connecting via wifi both at home and in the office) allows me to save battery..
To me it seems strange, because my old phone literally sucked battery while keeping wifi on, but on the nitro wifi consumes less than hsdpa data transfer.
I've added a link to my SetCPU Profiles file in the guide.
low antutu battery benchmark scores
Both stock and CM9 RC2 are disappointing: 250 and 328 respectively. I've applied the suggestions here and don't know if I'm doing something wrong.
I was rather happy with my phone with GB managed by Battery Defender from Infolife. I used to have 1,5 day with "Mostly Idle" usage. Now after upgrade to ICS I just got 10% down per hour on idle. So disappointed. I'll play with your settings a while. May be Battery Defender uninstall/reinstall can help too...
Ok so here are the tools I use
An automatic radio activation tool that will turn radios/wifi /gps OFF when screen is off - Juice Defender Ultimate is my choice
A CPU management tool - I use AnTuTu CPU Master but i hear that SetCPU is also very nice
Better Battery Stats
I Have setup Juice Defender (JD) to turn off my radios/wifi/bluetooth when the screen is off, to manage auto-synch, manage screen brightness but i DO NOT use it to manage CPU. I have also not setup any special App settings in JD, it just manages power consuming hardware (other than cpu)
My CPU tool (whichever you use) is used to setup profiles based on situations. Screen off, screen on, in call, etc.
There is never any reason for your CPU to be over 700mhz unless you are interacting with your phone. When you are on the phone 920 is all you will ever need. You can set the max above 1200 if you want or need the extra power but just remember that the cpu is always going to be a battery drain.
The #1 thing to remember is that if your not using your phone actively, it should be doing as close to nothing as possible.
Now I would love to hear from others on experiences and strategies or even critiques of my method. I know many will say that JD is not needed, bit i like not having to think about it.
I stick with Trickster Mod app for CPU/kernel settings. It's amazing. Also I never use Juice defender I use Tasker :thumbup:
Sent from my Galaxy Nexus using xda app-developers app
aperseghin said:
Ok so here are the tools I use
An automatic radio activation tool that will turn radios/wifi /gps OFF when screen is off - Juice Defender Ultimate is my choice
A CPU management tool - I use AnTuTu CPU Master but i hear that SetCPU is also very nice
Better Battery Stats
I Have setup Juice Defender (JD) to turn off my radios/wifi/bluetooth when the screen is off, to manage auto-synch, manage screen brightness but i DO NOT use it to manage CPU. I have also not setup any special App settings in JD, it just manages power consuming hardware (other than cpu)
My CPU tool (whichever you use) is used to setup profiles based on situations. Screen off, screen on, in call, etc.
There is never any reason for your CPU to be over 700mhz unless you are interacting with your phone. When you are on the phone 920 is all you will ever need. You can set the max above 1200 if you want or need the extra power but just remember that the cpu is always going to be a battery drain.
The #1 thing to remember is that if your not using your phone actively, it should be doing as close to nothing as possible.
Now I would love to hear from others on experiences and strategies or even critiques of my method. I know many will say that JD is not needed, bit i like not having to think about it.
Click to expand...
Click to collapse
Good idea starting this thread but I feel that you've opened up a can of worms
I've used JD before on my Dinc2 and I liked the fact that it can manage the radios but for me, I get a lot of emails and I like something on so I stopped using it. I did try some other apps like that but JD was my favorite by far!
Check out TricksterMOD from the app store it blows setcpu out of the water! It let's you do so much more and since I've found that I can't go back to anything else.
I usually don't undervolt, I feel like the kernel developers so a good job with their frequencies so I leave that alone lol but I have been recently checking out the governor settings to try and optimize a few things, that's a tricky topic lol
Sent from my Galaxy Nexus using Tapatalk 2
Um.. wow.. i wasted money on a few other apps apparently, trickstermod looks amazing..
Not sure if this is the forum for this but a good discussion none the less.
What ROM you guys running for best battery life? I seem to get the most from aosp based roms and not cm10 or aokp ones.
Im using XenonHD with Tinys kernel. I saw HORRIBLE battery life until i took action to tame it. now its much better
aperseghin said:
Im using XenonHD with Tinys kernel. I saw HORRIBLE battery life until i took action to tame it. now its much better
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Mines close to stock on purpose but I don't mind people tuning it. What did you change that helped battery? There's bit much from a kernel perspective that will really help battery.
And this topic doesn't belong in development.
Sent from my Galaxy Nexus using Tapatalk 2
i guess it belongs in general but the idea was to get all the tidbits that we need together in one app specifically for our phones. like "The CDMA Galaxy nexus Super Battery saver app that does it all without all the stuff you dont need"
Just flash lean kernel and turn off mobile data when you're not using it. No need for these crazy battery saving apps. I get ~7 - 9 hours a day, easily.
Sent from my Galaxy Nexus using xda app-developers app
I consistently get 14 to 18 hrs. I've been using the battery for about 2 weeks now and its awesome.
Rom of Choice: Jelly Belly
http://rootzwiki.com/topic/28677-ro...jelly-bean-421-aosp-its-all-about-the-butter/
Battery of choice: Anker 2200mAh
http://www.amazon.com/gp/product/B0078WL4YO/ref=oh_details_o01_s00_i02
Since radios are such a huge drain ...
I think my best move has been using an app called Profile. You can use it to turn off and on WIFI, Bluetooth and change the screen brightness at certain times on certain days. So at my usual time to go to work, WIFI gets shut off. At my usual time to get home, WIFI back on.
Also will change ringers, volumes and vibration on/off (always off uses battery).
24 hours no problem.
Costs a couple of bucks to get the time based control, but works for me.
Two tricks are using auto brightness and using WiFi whenever possible.
However, since I can't stand either of those options, using trickstermod to set max CPU speed while screen off, and setting color profile to morific typically helps my battery life.
Sent from my Transformer Pad TF300T using xda premium
gchild320 said:
Two tricks are using auto brightness and using WiFi whenever possible.
However, since I can't stand either of those options, using trickstermod to set max CPU speed while screen off, and setting color profile to morific typically helps my battery life.
Sent from my Transformer Pad TF300T using xda premium
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Click to collapse
CPU max is capped at 350 or 700 already there's no need to change it.
Sent from my Galaxy Nexus using Tapatalk 2
Yah why would you need to lower CPU on sleep when we have deep idle?
I use CM10 nightlies, and the latest dev snapshots of Imo's leankernel. Min frequency 230mhz, max 1350mhz, interactivex governor with his tweaks and sio i/o scheduler.
I get ~24 hours battery with decent screen-on time, from just texting, about 20 minutes on the phone, and websurfing on full wifi service wherever I go (stays connected even when sleeping, and we have cross-campus wifi here). 3g service only, no LTE here yet. Bluetooth off. NO apps--many of the market "powersaving" apps will just wake the phone from sleep and cycle a few times to write to the log file (any app that keeps track of power consumption, and half of them don't even use the system tools). GPS is on, but it's never initialized more than 1-2x a day for random needs.
Getting a lightweight kernel is a good choice for battery life saving, and getting one that actually keeps up with android mainline is pretty key.
I think it's most helpful to post your total 'screen on' time and time since charge. If someone tells me they get 14 hours, that means nothing. I can get a full day 16 hours with roughly 2 hours of screen on time, without limiting my phone via turning off mobile data, syncing, or using a juice defender app that disables a lot of things.
That, to me, is not very good at all. I saw that the Nexus 4 is getting about 4.5 hours of screen on time with a full day of being on with everything syncing, etc being on. 4.5 is actually pretty bad also compared to other devices these days.
No matter what I try I usually only get about 2.5 hours of screen on time. I under clock to a max of 750 screen off at 280 undervolted to in each setting.
I've tried many many kernels with many roms
Screen on time doesnt mean much me to me because i use my phone for personal and business use, which means I get quite a few calls.
I use the stock 4.1.1 image, rooted with SuperSu and debloated a bit. Also use Faux kernel 23m-sr and his control app.
I roughly get about 2.5 hours screen on time with light calls and about 1.5 with heavy calls - my off charger time is pretty good though as it easily gets me thru the day. I bought another OEM standard battery and just keep one fully charged at all times so I can swap. Works well for me.
I also keep 4g on - why not when you can swap batteries.
does leaving gps on all the time if you're not running any location apps bother the battery at all?
t1.8matt said:
does leaving gps on all the time if you're not running any location apps bother the battery at all?
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No only when you use something requiring device GPS does it turn on. Most background stuff like Google Now uses tower fix so it's OK to leave it on.
---------- Post added at 07:48 PM ---------- Previous post was at 07:43 PM ----------
Battery life is a pretty unique experience for everyone. Apps, ROM, kernel, signal, Wi-Fi time, brightness, etc. Won't say these type of threads are totally pointless but they are pretty close to it. Always good to share pointers on how to save a few minutes of juice though. Ultimately its a big screen and turning it off now and then is the best way to save but personally I leave all my services on because that's why I bought this thing and I keep a charger everywhere I go.
Hey 1ce, I'm posting here because I can't post in the Shpongle thread.
First of all, the ROM is awesome, and it makes me love using my One V because of how smooth and fast it is. However, I wanted to report few things:
1. In the ROM thread in page 128, bandit97 wrote:
So is it just me that has these battery problems?
No matter what my phone is doing. Sleep, Lock, Something, Nothing. The battery continuously drains to zero. After 5 hrs of a full charge just sitting there its dead. Never mind if I do anything. On sense roms and PA 2.99 I get pretty decent battery performance. Is there some tweaks/settings/apps I'm missing out on? I love this rom and its all around performance. But I travel a lot and I just cant afford very short battery life. Its really the only thing holding me back from using this as a daily.
Are any battery tweaks being worked on or available?
Tried
Stock Clocks/1400//BFQ/cfq/Smartmax/Smartassv2/
All the same
Any advice?
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Click to collapse
I wanted to say I'm having the exact same problem...my battery life has been reduced to about 60% of what it was. It keeps draining even when my phone is on sleep. I checked my battery usage stats (the built-in feature) and it says 50% is screen display (although I have set the brightness to the lowest possible and disabled auto-brightness).
2. I noticed when listening to music, that the media volume levels have a bigger difference than I remember having in Sense. What I mean is, that I often listen to music and the current volume level is too low, but the next higher one is too loud. Is it possible to make the difference more subtle (making more volume levels basically)?
Thank you.
I managed to get better battery performance buy using V6 Supercharge zipalign and turboboost mentioned in response to what you quoted. I also ran my battery right out and fully charged it without turning it on. Then calibrated it. I still don't even get even close to stock/sense, but marginally better. It drops 5-8% overnight now.
What clocks and IO/Governor are you running? Using auto sync or weather? Do you use greenify? Could be a lot of things.
Sent from my One V using xda app-developers app
Hello guys,
a few days ago I bought the notes 8.0 wifi and after a few hours they already had administrator permissions.
I left the tablet that becomes exhausted and completely after a night in office, in the morning I started to make some changes: new rom and kernel immediately immediately!
I state that in Italy are the CEO of an interesting blog where we treat only Google Experience products novel that I'm not really, but ...
Turning now from the Nexus 7 (I still have it) the difference for the better I feel about this tablet but I have noticed, however, an excessive drain on the battery, then not doing anything so important: the hours of active screen only 3/4 albeit with wifi always on!
I tried to set all the Governor also present with heavy undervolt but I have not noticed noteworthy improvements ...
nb. Rom and kernel belong to @civato
Tell me your experience, thanks guys
I didn't understand all of your post, but wanted to share my experience:
Leaving the screen brightness on auto is essential to get reasonable battery life. On full brightness my tablet battery runs out way too fast. I do think this device has the shortest battery life of 7 other tablet/phone devices I have previously used for multiple full days (I cannot judge with less usage). But as long as you leave it on auto brightness most of the time, it has managed to get me through each business day since it was released.
Sent from my GT-N5110 using xda app-developers app
reply
thanks for your expertise ...
you are absolutely right but also the tablet in standby consumes a small percentage of the battery, that's not good, at least to me.
I'll talk with the developers for the right settings in the kernel ... hopefully
I found that I only use a few percent when its in stand by. Heres what I have my settings as and why
Brightness - either auto +5 or 50% switching between the 2 as required.
Sync off.
Power saving mode - on unless I want to play resource heavy games.
GPS off. only turn it on if an app specifically requires it (navfree)
Bluetooth off.
spen battery saving mode on. the spen layer uses charge so no point having it on unless i need it. if im using my 8pi pen i just leave the spen out a little, using it like a switch.
Other battery saving things.
Auto airplane mode - app that turns all the signals off when the screen is off.
trickster mod - under volted by 75 on the CPU accross the board (had a few crashes on 100). also undervolted the GPU and changed the ramping threasholds.
- govner set to lulzactiveq which is a modified interactive but also with the benefit of limiting the cpu when the screen is off.
- set ignore_nice_load to 1. so that nice to have processes are now no longer run. only the higher priority ones are.
greenify - set various apps to hibernate stopping them from taking the tablet out of sleep.
Think thats everything.
The primary settings you listed @hertsjoatmon, are standard on Android (and better on Samsung devices) say: I will use them for years.
The second part is more interesting, in fact undervolt to -75 they had not yet tested on this note 8 but if you tell me that the tension holds well-being.
Also on the GPU did you apply the undervolt?? mmmm
The Governor me most is satisfying, at least in terms of battery life - albeit with some lag micro - is "ondemand" (100 -> 1200) with frequency freeze (of 4 cores), thanks to kernel @civato :good:
Standby does not consume almost nothing but if you use the goodness of the screen, wifi and all notifications accesse lead to excessive battery consumption that even my Nexus 4 behaves this way (having then 2100m)
Piè_Nexus said:
The primary settings you listed @hertsjoatmon, are standard on Android (and better on Samsung devices) say: I will use them for years.
The second part is more interesting, in fact undervolt to -75 they had not yet tested on this note 8 but if you tell me that the tension holds well-being.
Also on the GPU did you apply the undervolt?? mmmm
The Governor me most is satisfying, at least in terms of battery life - albeit with some lag micro - is "ondemand" (100 -> 1200) with frequency freeze (of 4 cores), thanks to kernel @civato :good:
Standby does not consume almost nothing but if you use the goodness of the screen, wifi and all notifications accesse lead to excessive battery consumption that even my Nexus 4 behaves this way (having then 2100m)
Click to expand...
Click to collapse
my clock and voltage settings are discussed here... http://forum.xda-developers.com/showthread.php?t=2319953
I've not really updated any of my threads since coming back from holiday. I will do at some point but im pretty happy with my set up at the moment and have only been lurking on here rather than actively contributing these last few weeks.
the situation seems to have improved a bit, with cuts of volts everywhere: P
let's see if over time more kernels will do miracles ...
I'm wondering what kinda battery life you get on the zfold3. When I opened youtube with the big screen on my accusatory app says it dr omegle ains 32%/hr does anyone else have any knowledge of if this is normal rate or high? I got it on ebay so I'm trying to make sure that everything is running as expected.
...
Also if I open lifeafter and play it while fast charging the back of the phone gets really realty hot! Think it was in the 120-130° range xender and screen goes really dim. Anyone else experience this on any slightly more demanding games?
When I watch videos on YouTube with the Fold open I have the same behavior as you, I reduced this by forcing the refresh to 48hz on the videos. For games I don't know, however it consumes when open.
Use manual brightness control and keep below 50% Display brightness sucks a lot of battery.
Using dark mode and wallpaper helps too.
Black pixels use no power... darker ones use a lot less.
Once the OS learns your usage patterns, you should experience much better battery life. That usually take around a month or 2.
iceepyon said:
Once the OS learns your usage patterns, you should experience much better battery life. That usually take around a month or 2.
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Lol, it never worked that I saw. Google global power management and it's tarded buckets will also cause erratic behaviors that can't be resolved unless you turn it off.
Hand optimizing is better, harder to do... but it works.