Database Develop

airplane mode - battery drain

I am experiencing strange issue with airplane mode. My nexus one is loosing about 2% / hour when in airplane mode. In standby mode energy drain is similar. Have any of experienced same issue ? Nexus one is unlocked using method "Root FRF91/FRF85B/FRF83/FRF72 (T-Mo/AT&T) Without Unlocking (100% Working) ". I've tried different Roms, kernels etc, no luck. I'll appreciate help from your side. Thanks.

Download spareparts and check whats using the most battery..
I get around 1% to 3% in 7 to 8 hours.
Also be sure that you "close" games/apps with the back button, not with the home button..

lukbeat said:
I am experiencing strange issue with airplane mode. My nexus one is loosing about 2% / hour when in airplane mode. In standby mode energy drain is similar. Have any of experienced same issue ? Nexus one is unlocked using method "Root FRF91/FRF85B/FRF83/FRF72 (T-Mo/AT&T) Without Unlocking (100% Working) ". I've tried different Roms, kernels etc, no luck. I'll appreciate help from your side. Thanks.
Click to expand...
Click to collapse
I have the same problem.
I turn on the airplane mode all days at the same time (00h) with the battery at 100% and when i wake up (07:15h) my battery is about 90%

Is your nexus one unlocked the same was as mine ? "Root FRF91/FRF85B/FRF83/FRF72 (T-Mo/AT&T) Without Unlocking (100% Working) " ?

lukbeat said:
Is your nexus one unlocked the same was as mine ? "Root FRF91/FRF85B/FRF83/FRF72 (T-Mo/AT&T) Without Unlocking (100% Working) " ?
Click to expand...
Click to collapse
No, mine is Vodafone Spain with EPF21B->FRF91.
I have this problem in Eclair too

I've orderd second battery, should have it tommorow, will report if it's resolve the issue.

lukbeat said:
I've orderd second battery, should have it tommorow, will report if it's resolve the issue.
Click to expand...
Click to collapse
Unless I'm missing something, I doubt this is an issue with the battery itself.

I've tried everything, on a stock 2.1 rom phone do the same... On hero night battery drain on airplane mode was 1% for 8 hours...

lukbeat said:
I've tried everything, on a stock 2.1 rom phone do the same... On hero night battery drain on airplane mode was 1% for 8 hours...
Click to expand...
Click to collapse
So you've excluded the possibility an app is doing this?

I find it odd you have a question about battery usage and haven't mentioned what the actual battery usage page (Settings > About phone > Battery usage).
Charge your phone completely then unplug on airplane mode and leave it sit overnight. See how much your battery goes down and what the Battery usage page shows is using your battery.
It'd be silly to talk about this any further without knowing this basic information.

Here is Battery usage after 11 hours in airplane mode /battery lost 18%/:
(Settings > About phone > Battery usage).
Phone idle 61%
Display 33%
Android System 4%
Spare parts:
Cpu usage:
Android system
android.process.acore
settings
suspend
akmd
mediaserver
clock
partial wake usage:
Android System
Clock
UID 10053
Dialer
Do you have any ideas ?

Is anyone able to help me?

I tried to look up some exact information on what items are considered Phone Idle. Like most things Android, it's next to impossible to find any official documentation on the matter, just a lot of forum postings of users guessing.
First, let's make sure we understand what we're seeing. After 11 hours you lost 18%. That is about 1.6% per hour on average. Now if we use that to calculate an average per hour % loss per app it would be:
Phone idle: 61% of the 1.6%/hour = 1.0%/hour
Display: 33% of the 1.6%/hour = 0.5%/hour (although it doesn't make much sense to think of display usage over all time)
Android System: 4% of the 1.6%/hour = 0.1%/hour
I'm wondering if you have an app installed that has very aggressive update settings? At this point all I can do is guess since I don't really know what Android considers part of the "Phone Idle" group, but if Android had to constantly start up a service maybe that would build. I would think the service getting started would appear in your battery usage though.
Additionally, do you still have GPS turned on, and do you use anything like Latitude that constantly tries to ping a server about your location?

I decided after writing my last reply I would charge my phone up fully and then let it drain with my normal usage to see how it compares to your airplane mode usage.
Used with light usage and listening to music for 3 hours and 55 minutes. Battery drained 21% (seems higher than usual, not sure why). That works out to be 5.4% per hour. The battery usage showed the following:
Wifi: 27% = 5.7% of battery, 1.5% per hour
Cell Standby: 21% = 4.4% of battery, 1.1% per hour
Phone Idle: 19% = 4.0% of battery, 1.0% per hour
Display: 15% = 3.2% of battery, 0.8% per hour
Android System: 6% = 1.3% of battery, 0.3% per hour
Media Server: 4% = 0.8% of battery, 0.2% per hour
Android OS: 2% = 0.4% of battery, 0.1% per hour
Last.fm: 2% = 0.4% of battery, 0.1% per hour
Music: 2% = 0.4% of battery, 0.1% per hour
So the most interesting thing here is that my Phone Idle actually worked out to be the same per hour battery loss that yours did. I have everything turned on except for bluetooth and have Latitude reporting my location in the background. I also run other background services such as the last.fm music scrobbling, news&weather updates, foursquare notifications, twitter notifications, and probably other stuff I'm forgetting.

[REF] Nexus 7 Nominal Battery Charging Report

Here is the way my WiFi N7 (rooted-) stock 4.2.2 battery behaves. I believe this to be a battery exhibiting nominal behavior. Perhaps this info will be useful to others for comparative purposes, when they ask the question, "what is normal when it comes to charging?".
- On the 2A OEM wall charger & OEM cable, charges from ~10% to 100% in ~ 2 hrs, 30 minutes.
- The exact same result (2 hrs 30 min) occurs independent of whether my N7 is completely off, or powered up but sleeping (screen off)*.
- Battery voltage at completion (100%) charge:
---- with AC adapter still plugged in: 4.193v
---- 30 sec after unplugging AC adapter: ~4.14v
- Misc battery curve points (during discharge):
97% 4.099v
93% 4.075v
89% 4.031v
80% 3.935v ( note approx 1% per 10 mV here )
78% 3.955v ( note hysteresis - this observed after 10 min of "sleep")
68% 3.867v
52% 3.764v
48% 3.757v
44% 3.735v
39% 3.711v ( note approx 1% per 5 mV here )
36% 3.707v
28% 3.684v
16% 3.638v
8% 3.538v
6% 3.528v
Other Notes:
- At the date of writing this, the tablet has been in service for 3 months of daily use; it was manufactured in Dec 2012.
- I do nothing special to the device in terms of a charging discipline; when I get done using the tablet, I put it on the charger. It sits there (on the 2A charger) 100% of the time when it is not in use. This means that it normally is idle at 100%, and gets recharged to full capacity from random discharge conditions - only rarely from a deep discharge condition.
- This thread is about charging and battery voltage range - NOT about discharging results under random operating conditions. *Having said that, it is important to point out that comparing charging rates between devices that are sleeping can be like comparing apples to oranges: the possibility of variable charging current available to the battery due to user-caused configuration differences (or cell signal power usage for 3G N7s) is quite high. IF YOU WANT TO FIND OUT IF YOU HAVE A BATTERY OR CHARGER ISSUE, TIME THE BATTERY CHARGING RATE WITH THE DEVICE TURNED COMPLETELY OFF - NOT BY "USING AN APP". Also, you should inspect the battery voltage range as well rather than relying on a "% charge" value; the former is an actual measured value and the latter is a computed (synthetic and thus possibly unreliable) value.
- battery charge % and voltages reported here are taken from values in the
/sys/devices/platform/tegra-i2c.4/i2c-4/4-0055/power_supply/battery/
folder
- If you watch the battery voltage behavior carefully during discharge, you will note that it does not drop monotonically; for instance, if you sleep the screen for a minutes or two and then check the battery voltage immediately after turning the screen back on you will find that the voltage has risen slightly - even though the "% charge" value may have gone down! Both of those observations are perfectly normal - the Li battery cell voltage will "rebound" after a prolonged drop in output current (even if you return to the same load condition), and to avoid confusing users, the "% charge" value reported monotonically decreases (within a reasonable hysteresis range).

Thanks
I have referred to this post many times to come up with a plan of attack to install my Nexus in my Dash of my car. I need some guidance if you have some input on the subject...
http://forum.xda-developers.com/nexus-7/help/nexus-7-grupper-battery-t3008184/post58306052#post58306052

X9 Battery Life

Just wanted to share that the battery life is very good on the X9. I am getting about 5.5 hours of screen-on-time.
I unplug the phone at 6am and at 11pm there is still 15% left with at least 5 hours of SOT.

That's excellent, I'm only getting around 3 hrs SOT myself.

Yes, I confirmed it. My X9 is in good battery life, normally I only need charging it once per day, even if I used it to browse web, some gaming.

Same here. SOT is consistently 5hrs+. This includes some gaming , alot of web browsing and some music.
Screen at 40% , 4g off , battery saving location setting and haptic feedback/ touch sounds disabled.
Everything else default.
Even if fast charging is only ver. 1.0 battery life is good enough to not need faster.
Very happy with this phone all around.

Slightly disappointed with the battery life. The standby power usage is not great compared to my other modern android phones. It is lightly debloated with all the power saving feature on except power save mode. Using power save mode only brings it to about the same level of my other phones without it on... Then, there is my Z3c.
~5hour screen on time is not great as well. Comparing similar screen size phones, it is pretty bad as I get about 6 on my Note4 (which is faster and pushing a higher resolution), and Zuk Z1 (CM13 with undervolt), which easily get 9-10+.
Edit: Some overnight numbers.
My main phone is an S6 and before going to bed was @ 43%. Checked phone 11 hours later = 38%. This is with wifi on and syncing 3 google accounts, 1 IM, NO SOCIAL MEDIA.
X9 @ 52%, with Wifi, sync off (no IMs/SM installed), no BT, no location, 2 SIM active (both get 5 full bars @ connection) = 41% checked at the same time. Doze is on and confirmed working. I've used with only 1 SIM before and it really doesn't change the numbers that much. I wouldn't be so harsh on the phone if it had quickcharge 2.0. But it only charges slowly @ ~5V 0.96A. There is something funky with the charging numbers, since it bumps up to ~1.1 amp after ~80%. It also doesn't trickle charge after 90% and only drop to trickle charge after hitting 100%. I am not sure about the battery longevity on this thing.

I had bought my x9 2days back battery drains very quickly.....disappointed any solution plz

Snrehan938 said:
I had bought my x9 2days back battery drains very quickly.....disappointed any solution plz
Click to expand...
Click to collapse
Same with all phones... check all which apps are the most hungry.
If you suspect its an hardware issue, factory reset then uninstall/disable as many apps as you can, charge up and let it run and see if it last normally.
Usually it should be some apps eating up the battery.

Dears All
There is an app (3C Battery Monitor Widget) in which you can inspect your battery to see if it works in normal condition or not. It shows you amount of real amperage drained from cellphone battery in different situation.
As I tested mine (htc one x9) it drains maximum current when capturing photo or recording video, location(gps) is on and map apps like google map is live, switching between different applications which result to rise frequency of cpu up to maximum (1.95 or 2.2 ghz in different model).
If you enable power saver mode in setting, maximum frequency of cpu wil be limited to about 1.32 ghz and conserves more battery and limits drained battery current below 900mA otherwise in aforementioned cases drained current will be raised above 1000mA and it is obvious that (3000mA/hrs) battery will be empty during 3hrs. Anyway normal application such as web surfing (specially with WiFi instead of mobile network), listen to music, talk with phone and brightness of display below 50% will result to more than 5hrs SON.
If you need more battery SON, one way is limit CPU/GPU frequency and some more sophisticated setting (you should first unlock boot loader, then root and also install kernel application or change stock kernel with custom kernel which can support change of CPU parameters the former is easier and the latter I couldn't find until now anything)
Finally I would be happy to announce you that I could reached 8 hrs son with this technique on my HTC ONE X9.

Battery life is quite good on my device too. Although I have disabled touchboost.
To disable touchboost open build.prop and change
ro.mtk_perfservice_support
From 1 to 0. Root is needed though.
Also limited max. Freq to 1.7GHz
1.9GHz is just an unnecessary heat generator and battery drainer.

I need help to minimise battery drain when not in use

Hi everyone,
The battery drain on my phone is atrocious, and I'm thinking it's a software related issue rather than hardware (phones aren't really my area, so this thinking isn't based on much). Now I don't use my phone much, and when in standby pretty much all of the toggles are turned off (no wifi, data, bluetooth, NFC). Yet even so, if I charge my phone and then unplug it before going to sleep, in the morning I'll only have 20-50% charge left. This is the most common outcome, though once or twice this drain hasn't happened and I've had 2 or 3 solid days of use.
As mentioned phones aren't really my area, but I've installed several apps (Doze, Gsam, Wakelock detector) and tried to lock everything down when not in use, without results.
I'm using Cyanogenmod 13.0-20160908, and Nova Launcher. I've got screenshots from Gsam, but not sure how to add them here (or where to upload them to link to them). Some of the details include (after being charged then not used till I took the screenshots):
Used 77% in 21h 9m (3.6%/h - 13h 54m Active)
Phone 0%
Screen 00:13:49 2%
Phone Radio 21:09:31 7%
Wifi Active 21:09:31 2%
Held Awake 13:40:30 12%
App Usage 76%
Then from App Usage breakdown:
Kernel (Android OS) 25.7% --> CPU Usage (Background Only) 2h 36m, Keep Awake 13h 35m
CyanogenMod System 20.6% --> CPU Usage (Background Only) 2h 5m, Keep Awake 26s, No of Wake Locks 233, No of times waking device 40
Phone Services 17.7% --> CPU Usage (Background Only) 1h 47m, Keep Awake 3m, No of Wake Locks 11107 --> Wakelock Detail: RILJ 3.6m (9884), ServiceStateTracker 15.5s (1223).
Let me know what details would be useful, and thanks in advance for any help. If flashing another rom or back to miui would be likely to fix things I'll do it. I have a few other minor niggles, but if this can be fixed I'd appreciate it.

Android shows battery as 4980mah and the battery is not charging to full capacity

I own Teclast X98 air 3G (C8J7) with dual boot ROM by Mirek190 Android 5.0 v7.0. The symptoms: CPU-Z and Aida64 shows the battery as 4980mah, I can play games just about 2 hours without brake after full charged device. According to USB tester (connected between USB charger and Teclast) it takes around 4800mah from 0 to 100% during 2.5 hours and it stops to charge more. I am using the Samsung 2.5A charger. When battery is low, the battery statistics of Android is showing about 40% of battery as over-counted. I decided that the problem with a one of two battery-banks. I bought and replaced the battery to a new one. But the problem is still there - it is charging only to about 4800mah and Aida64 and CPU-Z still shows it as a battery of 4980mah. Also 40% of battery as over-counted by the end of battery is within the statistics. Where shall I look for a decision? Bios, ROM, battery controller, etc. Thank you for any recommendation.