Having battery woes?
no matter what ROM you are on, these simple steps will help with debug.
Install CPU spy and badass battery manager.
Start the apps and reset statistics.
Let phone run for a few hours.
Open CPU spy.
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See deep sleep?
An idle phone should be spending most of the time in this state.
If so, you are fine. All is well.
If not open Badass.
Here click on the bottom line which shows app usage.
Here is what you see. Kernel is at the top for me as there are no rogue apps.
If your device is not going into deep sleep and kernel is the one taking most CPU, it can be ram issue
NOTE : THIS method is android generic. Not specific to note.
Sent from my GT-N7000 using Tapatalk 2
I had Facebook show up under kernal because it was accessing my GPS. I use better battery stats which offers a really good way to show you what is using your battery. badass didn't help in that case, it only showed that the kernal was using the battery because GPS falls under it. Better battery stats showed me it was the GPS and then it also showed me that my router wouldn't let me phone sleep, so a static IP fixed it.
Badass is nice, but it's very generic when it comes to android specific functions that are being called upon. It's only good to show apps that are using the processor, not the functions or processes that the apps are calling up if they do so.
Regardless, thanks for the how to guide.
Sent from my GT-N7000 using Tapatalk 2
Related
Um...is this normal?
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Hadn't really noticed a huge drain though.
Edit: I'm running DCv1.
Just checked mine. I'm at 88% display and 12% cell standby. Running Darchtrev v2.
Using DC v1
Cell Standby 70%
Phone Idle 20%
Display 8%
Android System 2%
im right there with you ajones. anybody have ideas as to why this is? i havent really seen a difference in battery life though. could just be a glitch.
Did you guys open the camera before you checked?
no. its been like that for a while. last time i used the camera was last night.
Not right before... I did use my camera today though.
I don't like telling people this because you can get in trouble by closing the wrong thing but... try a task killer and make sure the camera is completely closed.
Many Roms come with Astro of ES File Manager and those have a task viewer/killer built in.
i tried that. didnt see the camera as one of the running processes.
Maybe its an app running like goggles or barcode.
just checked. only thing that i could think of to have a hold on the camera is handcent and the messaging app. closed those. ill see what happens
*update*
so that didnt do anything. still reading at 93%. anybody have any ideas or are we just out of luck?
Wtf. This never happened to me on my hero. Does anyone know why its so high.
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I think its ridiculous.
In spare parts it says my sensor is high for android sysyrem so I wiped it and recalirabate it and nothing.
Sent from my PC36100 using XDA App
Yeah I had a similar post right after it came out. Unfortunately, its still unknown and still happens even after patches. We'll see if the next MR fixes it, but I won't hold my breath. There's a lot of processes running under it, so figuring out which one is the cause would be pretty painful. Tap on it sometime and there's like 20 something services under Android System that are shown as having contributed. I can still manage great battery life with it doing that, just annoying that the Android system uses more of the battery than anything. Sometimes it even uses more than Cell Standby.
I feel flashing another cdma snapdragon rom like the incredible and see if it would boot and if it would have this problem. Its pissing me off.
Sent from my PC36100 using XDA App
get alogcat and see if there are any obvious error messages
here's the thing, atleast from what i've noticed, if you do alot of flashing, wether it be theme, boot anim, splash, rom's kernels, then yes you will see the android system running a high percentage, that is normal, but if you not doing any of that then chance's are it's a app that is preventing the phone from sleep, or many apps keeping the phone from sleeping, such as the Facebook bug not long ago that did that when they made the updated facebook app the first time around, till they pulled it and fixed that issue.
If you have recently been doing some flashing if your rooted, just put the phone down and leave it alone for awhile and you'll start to see the percentage drop.
I check battery usage now and again and since I moved to gb you have the handy dandy graph. However as seen in the attached graph there is very strange drop I can't explain maybe some might help shed some light?
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sent from "The Other Woman"
I've seen this once, after turning the phone off and putting in a diff. Battery... Could also be something else.
Would have made more sense if it corresponded to hooking up to wifi. I get over 2 days on wifi on weekends at home.
You have data corruption that's not giving you an accurate read on the battery.
Sent from my SPH-D700 using xda premium
I would get drops in my graph when my phone randomly rebooted or when the modem crashes. Check your uptime when you see those dips, it will probably correspond with those dips. At least it did for me.
Thx for the responses guys. Yea I have noticed both 4g and wifi seem to get a lot better battery life than 3g which was not the case with froyo. I figured that is what samsprint are working on. It might have been a reboot but I can't get data corruption from a reboot when I'm on rfs right? All in all I chalk it up to an unfinished build but I thought I would ask around anyways.
sent from "The Other Woman"
I've had some ridiculous graphs. Open Gaps, 90% battery loss, you name it. It happens lol.
Sent from my Nexus S 4G using Tapatalk
Turn off yur phone then back on again you'll see the exact same thing happen, and obviously since your on gingerbread, it was a reboot, which is common with the leaks.
Sent from my SPH-D700
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So does that indicate that Kik is keeping my phone awake most of the time ? Or what...[emoji53]
Thanks in advance[emoji4]
I'm pretty sure the alarms are events (such as a kik message) made by kik to wake your phone. If you receive a lot of kik messages, that would explain the excessive alarms.
The main part you want to be focusing on in BBS is the 'kernel wakelocks' and 'partial wakelocks' to determine if/what anything is preventing your device from deep sleep.
Sent from my SM-G900I using XDA Free mobile app
blakstar said:
So does that indicate that Kik is keeping my phone awake most of the time ? Or what..
Click to expand...
Click to collapse
Clearly Kik is keeping your phone from sleeping a large number of times. That may not necessarily have a significant impact on your battery. You'd need to know the type and duration of wakelocks.. or at least a metric on how much battery that app uses. You could try disabling the app and see how much longer your battery lasts for a better idea. If you do that, try to minimize the number of variables that change.
Your delta change, i.e. using 11% battery per hour isn't attrocious. But that is also highly variable depending on your configuration. Much of my light usage averages about 7% /hr. But if I am doing something processor intensive e.g. transcoding, it can approach 20%.
.
Hey everyone,
my Note 4's battery (SM-N910F) is draining really fast. I bought 3 new batteries (1 samsung from their site and 2 rav power) and my battery still only holds for like 3 to 4 hours (instead of the whole day as before).
Can you help me figure out a fix?
Thanks !
Android 6.0.1 is running.
Version number MMB29M.N010FFXXU1DQL2.
Baseband N910FXXS1DQA1
3 -4 hours when using it? That is great. However, if standby is affected then you need to see what is running in the background and affecting the battery. Use BetterBatteryStats and or Gsm Battery monitor
raul6 said:
3 -4 hours when using it? That is great. However, if standby is affected then you need to see what is running in the background and affecting the battery. Use BetterBatteryStats and or Gsm Battery monitor
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no, 3-4 hours when almost not using it ! Before, the battery was lasting all my work day. Now at lunch, it's done.
I installed Gsm battery monitor, here's what I get:
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Do a search on android system battery drain and try some of the fixes. Something is running causing the drain. Google or other backup or something constantly syncing etc.
Finally, I did a full factory reset and now the battery is back to normal!