Database Users

Fixing battery problems with Rocket ROM

I've read in the Rocket ROM thread in the development forum that lots of people are having battery problems. And now me too.
Let's put our heads together and fix these "not ROM problems"
As I sit here, my phone has dropped from 100% charge to 90% in 35 minutes with maybe 10 minutes web use with 3G data on, GPS off, Bluetooth off and Wi-Fi off.
The phone is 33°c when air temp is 15°c.
I'm using Rocket v11, Abyss 2.3, setCPU with conservative governor.
So... Where to start?
Check list:
1. What speeds is your Note using? Use CPUspy to check if its range is limited and not using deep sleep mode.
Fix: ???
Sent from my GT-N7000 using xda premium

Get "CPU Spy" and check if phone is entering deep sleep or is stuck at a specific frequency.

Nicely spotted
No deep sleep. Seems stuck on 200mhz mostly. Now 82% battery in one hour of medium XDA browsing.
How do i unstick the 200mhz floor? SetCPU has 100 as the bottom and 1704 as max. But only 200 and 1400 are currently used.
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Dont have a count or anything but seems to me that many of the people complaining about battery are on custom roms. Im not and my battery life is good.
Just a thought.

In the Rocket ROM forum several of the top people insist that just because it doesnt happen to them that it cant be the ROM.
On Nexus One the ROMs really blew away previous settings like a ghost image on windows. Here the ROMs seem more subtle and wont change some little setting we have wrong. So i agree. But lets find out how to fix the problem. Maybe an 8 point check list of problems and fixes can be created. I'll stick the fixes at bottom of my original post.
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Could you post screenshogs of betgerbatterystats and the default battery info screen?
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I'm embarrassed to say... How do i post screenshots with the XDA app?
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Almost all reviews and users are delighted with the battery performance on the note dute to the extra large battery fitted. So there is no battery usage problem to fix. I think you are misguided unless you can provide screenshots showing the bad performance using the latest stock ROM.

PurpleMelbourne said:
Nicely spotted
No deep sleep. Seems stuck on 200mhz mostly. Now 82% battery in one hour of medium XDA browsing.
How do i unstick the 200mhz floor? SetCPU has 100 as the bottom and 1704 as max. But only 200 and 1400 are currently used.
Sent from my GT-N7000 using xda premium
Click to expand...
Click to collapse
got the same issue and same sympton...asked OP and was asked to reboot after flashing..did that nothing change...so flashed back to V10 and abyss 2.5. phone works perfectly normal now

screen shot -g note
PurpleMelbourne said:
I'm embarrassed to say... How do i post screenshots with the XDA app?
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Click to expand...
Click to collapse
to make screen shot at any photo or app you just push the button in the note styles and just long press at any point in the screen.
good luck

mtm75 said:
to make screen shot at any photo or app you just push the button in the note styles and just long press at any point in the screen.
good luck
Click to expand...
Click to collapse
He didn't ask how to take a screenshot. He asked how to post a picture using the XDA app.
Click the 'More' button.

PurpleMelbourne said:
I'm embarrassed to say... How do i post screenshots with the XDA app?
Sent from my GT-N7000 using xda premium
Click to expand...
Click to collapse
Here a shot for you
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mfractal said:
Could you post screenshogs of betgerbatterystats and the default battery info screen?
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Click to collapse
I didn't know how to post this earlier. I've been messing around with flashing, installing and uninstalling all day. Here is what i grabbed earlier but it might be stale now.
Tonight I'll flatten the battery completely with the led torch and recharge it over night while switched off. I think battery has improved a bit after switching to Abyss 2.5
But I still don't know how to enable deep sleep mode. Anyone know?
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PurpleMelbourne said:
Nicely spotted
No deep sleep. Seems stuck on 200mhz mostly. Now 82% battery in one hour of medium XDA browsing.
How do i unstick the 200mhz floor? SetCPU has 100 as the bottom and 1704 as max. But only 200 and 1400 are currently used.
Sent from my GT-N7000 using xda premium
Click to expand...
Click to collapse
Seems to be a some conflict between kernel and the OS if it's only using 200 and 1400 frequencies.
Try flashing FM kernel with CWM and retest.
When testing your phone must be UNPLUGED. The phone never goes into deepsleep when pluged in.
Edit:
Im running rocket v11 with the latest FM kernel and all is well. 1-3% battery drop per 6 hours idle.

How to improve battery life?

My battery life IS a complete joke.
Sent from my Nexus 7 using Tapatalk 2

sdhanjal15 said:
My battery life IS a complete joke.
Sent from my Nexus 7 using Tapatalk 2
Click to expand...
Click to collapse
Do you keep your wifi on constantly? That's what drains my battery every other day.

setup your wifi to go to sleep when not in use, unlock and root it, install a custom rom of your choice and flash a good kernel so you can do more tweaking and downclock/undervolt it.

Hexdecimal said:
Do you keep your wifi on constantly? That's what drains my battery every other day.
Click to expand...
Click to collapse
My WiFi is always on. Except when I leave the house.
Sent from my Nexus 7 using Tapatalk 2

You might be interested in this article : http://reviews.cnet.co.uk/mobile-phones/how-to-save-battery-life-on-your-google-nexus-7-50008978/
Good luck!
Sent from my Nexus 7 using xda premium

I've actually found the battery life outstanding with standard ROM. My stats as of about an hour ago is 3 days with WiFi on constantly and running audible app the whole time, battery was down to 58%. When I compare this to my hox which needs twice daily charge just on idle.
Leave the machine on standby for a couple of days and see if there is a problem with the battery.
Sent from my Nexus 7 using Tapatalk 2

I'm currently at 2 days on this charge and still at 60% with 4 hours screen on time. Usually I get about a day and a half per charge by turning off WiFi when I'm not connected and having it turn off WiFi in sleep mode. I also don't keep auto brightness on, I adjust it myself. I find with auto my battery dies faster.
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Thanks for your suggestions guys. I don't feel like crackfkashing yet lol. I already flash the hell out of my nexus s. Will try tomorrow and see how it turns out. Today I got 5 and half hours of screen time. Played a bunch of games though.
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Stock rom here it goes
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I think it is pretty goos right?
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jamesst20 said:
Stock rom here it goes
View attachment 1283013
View attachment 1283014
I think it is pretty goos right?
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Click to expand...
Click to collapse
Its okay I guess. But that's how Mich I can get n my nexus s
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Here's mine for today
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ben805 said:
setup your wifi to go to sleep when not in use, unlock and root it, install a custom rom of your choice and flash a good kernel so you can do more tweaking and downclock/undervolt it.
Click to expand...
Click to collapse
Agreed; i'm on aokp build 1 with no apparent bugs & awesome battery life. Seems much smoother than stock imo. I also had a couple of random reboots on stock, however have had none on build 1. All its missing is a bunch of rom control options that will no doubt come with future builds.

jamesst20 said:
Stock rom here it goes
View attachment 1283013
View attachment 1283014
I think it is pretty goos right?
Sent from my Nexus 7 using Tapatalk 2
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Click to collapse
Bah I think my battery is buggy.. I get nowhere near this yesterday I got 4 hours screen on time and with WiFi only on about as long, got like 13 hours total :S that's a fair amount, it got me through the day, but that's nothing compared to what you guys are getting
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If I have my brightness turned way down I lose about 8% an hour when I'm browsing the internet. If I turn the brightness up to about 40 or 50% it will drop more like 15% an hour.
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Where's the 9.5 hrs google said it had?
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Why N7 is dead by the end of the day every day. I charge it over night too
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Stock rooted
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Takinato said:
Stock rooted
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Click to collapse
HOWWWWW
Sent from my Nexus s

29% battery with 2min of on screen time and 1d 8hr standby. Also, screen is using 2% of my battery while OS IS 59% Im dissapointed in Asus
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Absurd Battery Life

As much as I love my N7, the battery is absolutely terrible. I charge it up every night and by 9pm its dead with no usage at all. If I use it I can only get 2.5 hours on screen time. I've tried using it without apps, I've reset it, calibrated the battery, everything. I have no idea what to do. Thanks
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I dont know what you are talking about...?

KiroDawg said:
I dont know what you are talking about...?
Click to expand...
Click to collapse
Its so blurry I can't even make out the numbers lol
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I'm running stock on mine and get much longer battery life. Is there anything else acting up out of the ordinary or is it just battery life?

Are you using any custom kernels or ROMs?
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bwassef said:
Are you using any custom kernels or ROMs?
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Click to collapse
Nope I'm completely stock, never been rooted
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Manatee Burger said:
I'm running stock on mine and get much longer battery life. Is there anything else acting up out of the ordinary or is it just battery life?
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Click to collapse
Besides the minor screen lift on the left side everything is fine. No dead pixels, cracked screen, lines, washed out colors, nothing
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Return it and get a new one...
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krackerjac said:
Return it and get a new one...
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I already did once :/ and it didn't help. Ugh. Thanks anyway
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I also don't know what you're talking about. No complaints here.
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Scoutamis said:
Its so blurry I can't even make out the numbers lol
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Hmm looks blurry if looking from mobile app. Works fine on computer browser. Anyways, the screenshot shows battery at like 4 days and 5 hrs. 5 and half hours of screen on time with 7 percent battery left(which will last a good bit still). So either something is wrong with your n7 or maybe custom roms and kernals make that much of a difference.

Scoutamis said:
I already did once :/ and it didn't help. Ugh. Thanks anyway
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Click to collapse
It may be an app keeping it awake to sync or something. If it's a repeated issue I always look at what was installed that is similar or any changes I've made that are common between both devices

KiroDawg said:
Hmm looks blurry if looking from mobile app. Works fine on computer browser. Anyways, the screenshot shows battery at like 4 days and 5 hrs. 5 and half hours of screen on time with 7 percent battery left(which will last a good bit still). So either something is wrong with your n7 or maybe custom roms and kernals make that much of a difference.
Click to expand...
Click to collapse
Lucky you
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Flippy125 said:
It may be an app keeping it awake to sync or something. If it's a repeated issue I always look at what was installed that is similar or any changes I've made that are common between both devices
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Click to collapse
I have no idea which app is doing it and I have no idea how to find out. Any ideas?
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Scoutamis said:
I have no idea which app is doing it and I have no idea how to find out. Any ideas?
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Click to collapse
Look at the battery info screens. (Settings > Battery) That should give you some idea what's using so much battery. For most of us, the screen seems to be the main thing. For you, you'll probably see something else.

Jolest said:
Look at the battery info screens. (Settings > Battery) That should give you some idea what's using so much battery. For most of us, the screen seems to be the main thing. For you, you'll probably see something else.
Click to expand...
Click to collapse
It appears to change alot...for example Tablet Idle is 50% right now and screen is down to 2%. But usually screen is 50% everything else is smaller
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Best Battery/Governor Paramters?

First I'd like to start by saying sorry to the mods if this is 'spam'. If it is feel free to close it
Back on topic..... What are the theoreticaly best battery saving governors? And what are the parameters you are using?
--------------------
I'm on ondemmand
Settings:
Down differential: 3
Ignore nice load: off
Io is busy: off
Power save bias: 0
Sampling down factor: 1 step
Sampling rate: 20000
Up threshold: 95%
--------------------
On my Nexus S these settings would breathe 5-7 hour screen times in 24+ hours. On my N4 they suck. Interactive does better than this.
So what do you use and recommend?
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The ondemand was god awful... I'm testing out this now. Will report after a few days... Feel free to post as well lol
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Just testing it out...
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309041291a said:
Back on topic..... What are the theoreticaly best battery saving governors?
Click to expand...
Click to collapse
Conservative, at 384 Mhz minimum would be the best for battery saving.
My point is: this is highly HIGHLY dependent on usage and how much performance the user is willing to sacrifice. I don't see how this information would be helpful to anyone.

Signature
25% of battery per hour of screen on time
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Franco kernel default. Interactive and row.
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Interactive row had only given me 3-4 hours screen time..
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309041291a said:
Interactive row had only given me 3-4 hours screen time..
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Click to collapse
Which combo has gotten better results than those?
Plus, what rom/kernel you're on

calanizzle said:
Which combo has gotten better results than those?
Plus, what rom/kernel you're on
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Click to collapse
None. So far interactive/row is best. AOKP, Matrix, tried Franco. Franco gave amazing idle but the screen wasn't as up to par as I'd like. I am looking for 4.3-5+ screen in 14+ hours...
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309041291a said:
None. So far interactive/row is best. AOKP, Matrix, tried Franco. Franco gave amazing idle but the screen wasn't as up to par as I'd like. I am looking for 4.3-5+ screen in 14+ hours...
Sent from my Nexus 4 using xda app-developers app
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Click to collapse
Tried his new test kernel? quite a improvement i must say.

309041291a said:
None. So far interactive/row is best. AOKP, Matrix, tried Franco. Franco gave amazing idle but the screen wasn't as up to par as I'd like. I am looking for 4.3-5+ screen in 14+ hours...
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Click to expand...
Click to collapse
try minco

Stock with Trinity 47b gives me 5 and half hours of screen on time in 24+ hours. Ondemand/deadline. I only use wifi btw.

Tried minico, was average, Franco is the same for me, I am itching to test out Trinity...
As soon as I'm not as busy with school I'm going to try it. So far interactive/row is the best combo for me though
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Trinity is amazing so far. All default, I'm going to for sure get above 4 hours screen
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Default settings of latest Trinity
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For those wondering here are those settings (Trinity-Default ondemmand).
I'm still getting amazing battery with them. On demand/deadline. I recently applied tweaks from pimp my ROM to increase battery so we'll see how that goes...
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Battery life on cm11

Hey there.
I just wanna know your battery lives on cm11 for comparison with mine.
I recently got a new battery. But standby battery use isn't good.
Kindly tell me yours and is high battery consumption in standby on all Roms?
PS I'm on Omni ROM right now.
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I am on Quarx's CM 11 latest nightly and my battery lasts some 10 hours of normal activity.
However standby consumption is very less. Around 2% per hour
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Gulia said:
I am on Quarx's CM 11 latest nightly and my battery lasts some 10 hours of normal activity.
However standby consumption is very less. Around 2% per hour
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Click to collapse
2% isn't less.
Overnight I lose about 5-6 %.
Earlier I lost 2-3% and that was an old battery.
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I will try to measure the overnight usage again and will post.
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My defy lost 4% juice overnight (8hrs) with wifi and data off. At the rate of around .5% per hour, which is very decent.
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Gulia said:
My defy lost 4% juice overnight (8hrs) with wifi and data off. At the rate of around .5% per hour, which is very decent.
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Click to collapse
What ROM are you on?
4.4 or 4.3?
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Gulia said:
My defy lost 4% juice overnight (8hrs) with wifi and data off. At the rate of around .5% per hour
Click to expand...
Click to collapse
+1 using self-compiled CM11 based on Quarx git.

I am on Quarx's CM11 17th Feb build.
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sevenrock said:
+1 using self-compiled CM11 based on Quarx git.
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Click to collapse
Gulia said:
I am on Quarx's CM11 17th Feb build.
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Click to collapse
I guess I'll have to try cm11.
Here's my battery. It's with 30 mins screen on.
My main concern is battery use on standby.
Ps my battery is pretty new, do you think it'll get better?
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give it a try...
dkv2222 said:
I guess I'll have to try cm11.
Here's my battery. It's with 30 mins screen on.
My main concern is battery use on standby.
Ps my battery is pretty new, do you think it'll get better?
Click to expand...
Click to collapse
I would say, give CM11 a try, if you dont like you can always switch back to your current backup.

battery is not sustained as longer as in stock 2.3 ROM, however CM11 Android 4.4 is far stronger than 2.3, I'd endure the battery issue rather than the system issue.

lvlouisaslia said:
battery is not sustained as longer as in stock 2.3 ROM, however CM11 Android 4.4 is far stronger than 2.3, I'd endure the battery issue rather than the system issue.
Click to expand...
Click to collapse
More battery drain in CM11, I will go back to Stock Froyo 2.2 if I can

I have a 2 year old battery and use CM11 KitKat, my battery is at best a day and a half with almost all-day WiFi and mobile data when I'm outside of my WiFi zones, and two around two hours of usage... used to be two days and more but without leaving the WiFi enabled all day but with ICS almost a year ago

Im having really bad battery with all ROMs.
On cm11 mobile network is acting really weird.
See the screen shot.
The network connectivity just disappears even though I'm in an area of full coverage. :/
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Pretty improved.. atleast better than jellybean