Develop Bugs

Battery re-calibration??

This started on suiller's ROM guide, but I feel it's really OT so I should take it outside.
I've had battery issue ever since I got the Diamond. With moderate use (maybe ~15-20min of call per day, email check every 30 min, moderate web browsing) the battery level can drop by ~ 15-20% per hour on average. This means the battery would only last 5-6 hours without charging, which is not good enough to last through a day.
I first looked at whether the phone has any serious battery drain application, and it doesn't. With BatteryStatus I see the battery drain is ~ 100-150mA with GSM on, BT on. When I'm downloading email, or browsing the web, it does go up to 200 ~ 300mA briefly, but that is only when it's transmitting / receiving data. In standby mode with screen off it drains less than 50mA. These numbers seem pretty typical from my experience.
And here's the weird thing - on a typical day, when I wake up, and take the phone off the charger, it can drop from 100% to 93% within 30 min. On the way to work, when I would browse the web lightly, it can easily drop from 93% to 80-85% within an hour. That's pretty bad battery life.
Yet there are instances when I've been browsing the web, or playing MP3, or using YouTube for a good 10-15 min, but the battery level would not drop.
I figure maybe the battery needs to be re-calibrated, so I decided to discharge the battery and recharge it. I know this doesn't help improve the battery life of LiIon batteries, but I was trying to recalibrate it.
What happened, when I was discharging the battery, was I found the battery drop was very quick from 100% down to ~ 50%. From that point on, the battery drop is much slower.
And from 50% to 25% the battery seems to last forever. The most interesting thing is with the battery down to 15%, I did a lot of 3G web browsing, listening to MP3's, turn wifi on, and that 15% of battery lasted a good 3.5 hrs with heavy use until it's so low the phone stopped working.
The whole discharging process ended up taking 10 hours, and that's with HEAVY use for the last 3-4 hours too. That's actually acceptable for battery life (not great, but at least it'll last me through a day outside with moderate use) and obviously doesn't jive with the 15-20% drop per hour when I'm operating in the 50-100% full range.
When I'm charging the battery, I also noticed the level went up from 0% to 70% very quickly ... pretty much over 40 min. BatteryStatus shows it's being charged at +600-700mA.
As the battery gets full, the charging is much slower ... BatteryStatus shows it is charging by ~ 100-200mA only.
With the battery level up to 99%, it took almost forever to finally get up to 100%. I think it took at least 20 min.
So after a full discharge - recharge, I used my phone as normal this morning to see if it's been calibrated, but nope. It still drops from 100 to 93% within minutes of doing virtually nothing, and easily drop to 80% after an hour ride to work.
Does your battery perform the same way? Should I replace my battery? Or is there a way to properly calibrate the battery?
btw location and reception has nothing to do with it. I have good to excellent reception throughout this test.

I'm having the same problem but not with every rom (don't know wich ones, tested almost every rom hero) So is this a piece of software wich shows the live that doesn't work ?? or is it the battery ? As i can see it it's depending on rom thus it's not hardware
But hey I'm n00b

i've noticed that a soft reset or power up will use 3-7% of battery depending on the weather (what else could it be )
don't have the ability to discharge but i agree that in many cases the battery usage drops drastically & there is no reasonable cause
hope someone can figure this out!

From 4pda.ru
http://4pda.ru/forum/index.php?showtopic=85754&st=100&p=2338080&#entry2338080
1. discharge the battery completely (by playing video, audio, etc.)
2. Remove the battery and wait about 1min then place it back (do not power on the phone)
3. Full Charge the phone, wait when LEDs stop blinking (do not power on the phone)
4. When fully charged - remove the battery (do not power on the phone)
5. Wait about 1min then place the battery to the phone and now you can power it on.
If battery is more or less OK it will re-calibrate.
I hope it will help!

STM123 said:
From 4pda.ru
http://4pda.ru/forum/index.php?showtopic=85754&st=100&p=2338080&#entry2338080
1. discharge the battery completely (by playing video, audio, etc.)
2. Remove the battery and wait about 1min then place it back (do not power on the phone)
3. Full Charge the phone, wait when LEDs stop blinking (do not power on the phone)
4. When fully charged - remove the battery (do not power on the phone)
5. Wait about 1min then place the battery to the phone and now you can power it on.
If battery is more or less OK it will re-calibrate.
I hope it will help!
Click to expand...
Click to collapse
Thanks. I tried those steps yesterday and my phone is pretty much behaving the exact same way after the battery cycle.
After all the steps, the battery shows it's 100%. I unplug it, and it drops to 97% within MINUTES literally. Now I plug it back in, and it takes forever to get from 97% back to 100% (> 1hour)
I think it may be a battery problem and not a calibration problem. The drain averages ~ 120-150mA when phone on, screen on, no data, and below 100mA with phone on in standby mode. That seems pretty typical? I'd think the battery should last longer than 8 hours (till it completely dies) in that case.
Where do you guys suggest I buy a new battery for the Diamond (other than HTC directly)? I bought one from DealExtreme but the battery runs ~ 10C hotter than normal all the times ... I don't think I want that as my primary battery.

If you get through a full day with moderate-heavy use on your battery, I say that is normal and good battery life on a Diamond. So, why bother that the percentage is not proportional? I would not get a new battery for this since the problem is only in the reported percentage, not the battery life itself.
I've had plenty of cars that went from full to half tank on the meter significantly faster than from half to almost empty. You know about it and adapt to it, simply.

Hello !
I'm understand you, i have a ELF (Touch P3450), and a Diamond, the same problem appear for the two phones!
Every Morning, when i disconnect from charge my diamond, my level battery go to 93% in 10mns without reasons (One sms, no 3G, no Wifi etc).
My battery go down to 50~70% around 14H (2H pm), and stays at this level for many hours (4-5hours ~), i think it's not a problem with our battery, but a dysfunction of the sensor battery, which shows wrong data =/
By the way, that problem doesn't appear every day, for example, today my battery has that level : 83% (15h43), so today it has a good level.
Since i have flash that ROM : http://forum.xda-developers.com/showthread.php?t=521941, with radio 1.13.25.24, i have less less issues with my battery, it's more stable!
That's all, hope that helps you.

Ok guys, I've made a few discoveries that I figure I could share with everybody. Maybe you'll find it useful.
Last week I went on a trip and turned off the data connection while I was out of the country. Instead of letting the roaming charges kill me, I was relying on wifi to check emails and browse the web.
I ended up checking emails just as often, because where I worked had wifi AP.
Now, I could usually get 8, maybe 9 hrs out of my battery with moderate use before it's completely empty previously. So I was very surprised to find that with a similar usage pattern, but using wifi instead of EDGE/GPRS I still had 30-50% battery left at the end of 8-9 hours day everyday during the trip. I know data uses a lot of battery, but I always thought wifi drains even more, so that's quite a stunning discovery.
Now, I don't think it was due to wifi draining less than GPRS/EDGE (can't be true), so it must be something else. In trying to figure out what made the difference, I did a bunch of tests after the trip, and this is what I find-
1. Data channel dis-connection / re-connection is BAD
I used to always set my phone to auto-disconnect data channel (EDGE/GPRS) after 5 min of inactivity, in an attempt to save battery. What I found, was keeping the data channel open does NOT actually drain more battery than leaving it off at all. Transmitting data drains battery, but not leaving the channel open. However, disconnecting it, and re-connecting it all the times actually drains quite a bit of battery. I set my phone to check email every 30 minutes, and then there's also the odd weather forecast that needs data channel. In a 9 hrs day, that means channel disconnection + reconnection of about 40 times.
The last couple days I have left my data connection ON all the times, and I actually get more hours out of my battery. My battery used to drop ~ 10-15% per hour with moderate use. By keeping the channel on all the times it's been kept to under 10% per hour!!! I've only tested it for a couple days. I'll report more on it once I get to test it for longer, but the idea that 'keeping data connection off when you're not using it to save battery" seems to be a complete myth. The opposite actually saves battery!!!! And as a bonus, I don't even have to wait for the data channel to connect when I need it!!
2. Recycling the radio is VERY BAD
Everybody knows 3G is a real battery killer. However, similar to EDGE/GPRS, keeping the 3G channel open does NOT drain any more battery than turning it off, or turning on EDGE/GPRS channel. When the data channel is idling, it doesn't matter whether it's on EDGE, GPRS, 3G, or even completely turned off, the battery drain is close to zero in all cases.
Now, you do see a 1.5 - 2 times battery drain with 3G compared to EDGE/GPRS, so I've always turned 3G on only for web browsing or watching YouTube, and use GPRS / EDGE for regular emails update. The thing is though, if you're not transmitting much data (which you won't for regular email update), the difference in battery drain is minimal. SWITCHING between 2G and 3G though, requires a radio power cycle (turn off then back on to switch frequency) and THAT drains a lot of battery!!!
So if you're often switching between 3G and 2G, and you only transmit little data in 2G mode, you might actually be better off keeping it in 3G all the times instead of forcing the radio to power-cycle all the times.
I've tried keeping it in 3G all day long and I noticed minimal increase in battery drain. However, there might be another reason you want to consider - RADIATION. 3G not only drains more battery than 2G, it also transmits at a stronger power than 2G and as a result create more radiation. For that reason, I'm still keeping my phone to 2G for email updates and what not, and switch to 3G only for web browsing. For radiation you may try this thread if you want to read more about it.
3. VGA screen is a REAL battery killer
I do quite a bit of reading on my phone (ebook, on-line magazines etc) and reading ebook was never a battery concern in my days with the Touch (QVGA screen).
That's why I was quite surprised on the Diamond, reading the ebook for 1 hour, with EVERYTHING else turned off (GSM, EDGE, GPRS, 3G, BT, wifi), my battery level went down by 12% in ~1 hour.
The VGA screen drains a lot more battery than the QVGA screen. Now, if you need to use the phone you need to use the screen, there isn't much of a choice. It does make sense, however, that if you're using the screen for a while (like reading ebook) switching from a high brightness level to a lower brightness level.
Oh, and the auto-adjust brightness thing? That doesn't help you save battery at all. This is because it polls the light sensor every 2 sec (default value, but you can change it) and adjust screen brightness accordingly. This mechanism drains battery in itself, and in most cases end up using more battery than keeping the brightness constant at a low to medium level.
The auto-adjust thing is cool, and in theory it sounds like it can save you battery, but unless you constantly set the brightness to max even when you're in a dark environment, disable the auto-adjust and just set it to a constant 50-60% instead.
These are the few things I've noticed and I'm still trying things out, but over the last 2 days I've seen a significant drop in battery drain. I would be lucky to go through a 8-9 hrs day with moderate to heavy use before, the first 2 days I tried this I still had 60% battery left after 5 hrs of moderate use. The Diamond is very weak on battery life so every bit helps! I hope these tips are useful to you!

Thanks for your share

number16 said:
When I'm charging the battery, I also noticed the level went up from 0% to 70% very quickly ... pretty much over 40 min. BatteryStatus shows it's being charged at +600-700mA.
As the battery gets full, the charging is much slower ... BatteryStatus shows it is charging by ~ 100-200mA only.
With the battery level up to 99%, it took almost forever to finally get up to 100%. I think it took at least 20 min.
Click to expand...
Click to collapse
It's exactly what the charging process is supposed to do.
Read more here:
The charge time of most chargers is about 3 hours...
Increasing the charge current does not shorten the charge time by much. Although the voltage peak is reached quicker with higher charge current, the topping charge will take longer.
Some chargers claim to fast-charge a lithium-ion battery in one hour or less. Such a charger eliminates stage 2 and goes directly to 'ready' once the voltage threshold is reached at the end of stage 1. The charge level at this point is about 70%. The topping charge typically takes twice as long as the initial charge.
Click to expand...
Click to collapse
source:batteryuniversity (dot) com

Battery Meter or Voltage Meter problem?

My G2 gets ghastly battery life. I've tried Juice Defender and I've recalibrated more times than I can remember. Most notifications are turned off and I'm conservative about powering off the various radios when I'm not using them. It wasn't always like that. I felt like I was getting most of a full day on one charge and loving it for many months, but something happened last summer I think. Maybe dust or moisture affected the phone. I've got a total of six batteries and three external battery chargers. No battery whether it's the OEM original, 1500mah spares that were amazing before, or the new 1800mah evo shift 4g batteries I tried out, will last more than about four hours from full charge to the 15% warning sound.
I've tried only charging in the phone. I've tried rotating batteries charged in the external chargers. Like I said, I've tried calibration scenarios of various kinds.
Last night, I took a fully charged 1800mah battery and put it in my phone and then charged the battery in the phone. The orange led never turns green when the phone is off. When the phone is on, I can just barely get the led to turn green at about 91% (starting from what should be a full charge that is reported as 80% by the phone). This takes a good 10 hours of charging. As soon as I woke the phone this morning, the battery meter started dropping while the phone was still plugged in. After unplugging, the meter drops to 80% in a matter of a few minutes.
Like I said, I tried juice defender. It only helps a little but the cost is waiting for the data radio to reconnect every time I wake the phone. I thought BT was the culprit for a while, but now it really doesn't matter if I leave it on or turn it off.
At the other end of the charge, the phone can run for several hours when the battery is supposedly between 1 and 3%. I know we are told to start charging again at 15% but my phone drops to that level in 3-4 hours of regular use. I haven't seen the phone report 100% charge on any battery in six months time, but it runs and runs at 1%. This is what bugs me. Is the phone just mis-reading how many milivolts are coming out of the battery? Why can't I complete the first step of calibration (charge overnight to the 100% mark)? Is there a hardware component that can be causing this or should it be entirely fixable in software?
Thanks for any ideas or tips

Did you wipe battery stats?
Sent from your phone

waxinpoetic said:
Did you wipe battery stats?
Sent from your phone
Click to expand...
Click to collapse
Yes I have many times but thanks for the suggestion.

Figured so.. Too bad, would have been too easy. I'm starting to see some batttery drain on my desire z now too. Im wondering if mine is a radio issue.
Sent from your phone

waxinpoetic said:
Figured so.. Too bad, would have been too easy. I'm starting to see some batttery drain on my desire z now too. Im wondering if mine is a radio issue.
Sent from your phone
Click to expand...
Click to collapse
I changed radios and did RIL matching last fall based on other's comments about better battery life, 4G and GPS. While I've had faster GPS locks and maybe better 4G performance, my battery life did not improve. It may have even gotten worse.
Today I'm trying out some different CPU governor settings. The CM 7.2 RC1 default is 'interactive' and I wouldn't normally touch those settings. I think the powersave governor helped a lot, but the phone became almost unresponsive. Trying 'conservative' now. I should have read This long ago, but just got around to it today. I might invest in the SetCPU app as well.

OK, I can count on a good six hours of normal use if setCPU is holding down the max cpu frequency at night or when the screen is off. I'm still tweaking. Today, the phone crashed while playing music over A2DP and tracking a run with runkeeper. I think it needs to tick faster than 368Mhz when the screen is off.

Are you seeing improvement? I changed radios and like you havent seen much improvement. But I am a little better off than you are. My battery drain is terrible (1-3%per minute) only when connected to the internet (4g or wifi) or using navigation. If the screen is off, or if Im using non-internet apps I seem to get regular battery use. Good luck with your cpu settings.. I have ordered a new battery, but I doubt it will solve my issue. I may try tweaking my settings too soon, but Id better research more.

Just wondering do you have SuperCharger V6 installed? On my Desire Z I had some serious battery problems just as you mentioned. After I would flash my ROM (wiping the caches + reinstalling) my battery life would return to normal. But whenever I would flash SuperCharger v6 my battery life would spiral out of control. My suggestion for a ROM that handles battery life fairly well is Andromadus Audacity B2, just make sure you download and flash GAPPs (google apps). For example running that rom I have been getting very good battery life, approx. 16-20 hours of battery life with moderate use) with default CPU settings and data always turned on. I'm sure if you use Juice Defender to control your data you'll get above average battery life.
Note: Andromadus is an ICS (android 4.0) ROM

Qwerty_Uieo said:
Just wondering do you have SuperCharger V6 installed? On my Desire Z I had some serious battery problems just as you mentioned. After I would flash my ROM (wiping the caches + reinstalling) my battery life would return to normal. But whenever I would flash SuperCharger v6 my battery life would spiral out of control. My suggestion for a ROM that handles battery life fairly well is Andromadus Audacity B2, just make sure you download and flash GAPPs (google apps). For example running that rom I have been getting very good battery life, approx. 16-20 hours of battery life with moderate use) with default CPU settings and data always turned on. I'm sure if you use Juice Defender to control your data you'll get above average battery life.
Note: Andromadus is an ICS (android 4.0) ROM
Click to expand...
Click to collapse
Thanks (and thanked) Ive been waiting till ICS roms are bug free and having working cameras, but I think I may just jump on it now. My battery issues are untenable at the moment on a CM7 based rom. Thanks for the advice.

I was seeing some improvement due to SetCPU profiles. However, now if I have GPS and Bluetooth on so that I can listen to music and track my run in runkeeper, the phone seems to 'crash' after about 35 minutes or so. The battery meter shows that the battery takes a nose dive and I think the phone shuts down at 1%. If I restart the phone, it might say I have 30 or 40% charge left but then it drops rapidly again. It seems like it hates the warmth of my pocket. If I let the phone out in the cool air like on my desk, I can reboot at get back to 60 or 70% even though it was just saying 3%. I'm not running SuperCharger.
I'm trying to find cheap G2s for parts on ebay now. Maybe I can at least test out my six batteries in a different phone to see if any of them are shot. They all seem to have the same problems in my phone.

This will be my final update. I bought a used G2 off ebay. The same batteries I used before now show as fully charged when I expect them to be fully charged. I will be getting a feel for general battery life over the next few days, but I expect battery life to be roughly the same. I just won't have to guess at what the current battery level really is.
I'm seeing now that the new phone will show a 60% charge when the old phone shows 15% for the same battery at about the same time.
The new phone shows 100% when topped off but if I put the topped off battery in my old phone, I see 75-80% charge.
I may try sending the old phone to HTC depending on what they offer for repair services.

revwillie said:
I bought a used G2 off ebay. ... the new phone will show a 60% charge when the old phone shows 15% for the same battery at about the same time
Click to expand...
Click to collapse
I think what's happened to your old phone (and mine!) is that the onboard voltmeter chip is reading low. I've compared the on-board mV reading to a multimeter-measured battery voltage and what the phone reads as 3.9V the multimeter gets 4.2V (a fully charged Li-Ion battery).
Who knows what's behind it, but it seems like a hardware problem to me.

[Q] [Q&A][SGH-i747] Battery charge retention issue. (CM10.1-20130203-NIGHTLY)

Hi all,
Over the last three days I've been having some trouble with my S3's battery. Recently I've been experiencing large battery drain while not using the phone excessively. Today within 20 minutes of unplugging the phone from a full charge it read 40% charge. It's almost as if I am lacking 60% of my battery.. From when I got the phone (on release day), I had never found the battery to be very impressive. The advertised 800 hour standby time has always been far out of reach, and I often found myself having to plug the phone in after 7-8 hours, (I'm a student, so it's away all day as I'm in class, i.e, low use.)
I don't use WiFi (I have 7GB/mo data), I don't use automatic brightness (held between 5-20%), GPS is on (For some Tasker profiles, but is rarely used), and I have never used NFC/S-Beam.
I have done factory resets, two since having issues with the battery. The phone is rooted and is running CM 10.1-20130203-NIGHTLY-d2att, I thought that updating the CM build might help (Feb 3rd as you can see), but hasn't. Also it is underclocked to MAX 810mHz. Battery usage statistics pins the main user as the screen, but I feel this is false.
I'm thinking of buying a new battery, might that help?
TL;DR: I'm having battery problems, and have tried all the normal fixes I could find online. See the attached images for battery details.
Any suggestions are appreciated!
Thanks!

Zev.Isert said:
Hi all,
Over the last three days I've been having some trouble with my S3's battery. Recently I've been experiencing large battery drain while not using the phone excessively. Today within 20 minutes of unplugging the phone from a full charge it read 40% charge. It's almost as if I am lacking 60% of my battery.. From when I got the phone (on release day), I had never found the battery to be very impressive. The advertised 800 hour standby time has always been far out of reach, and I often found myself having to plug the phone in after 7-8 hours, (I'm a student, so it's away all day as I'm in class, i.e, low use.)
I don't use WiFi (I have 7GB/mo data), I don't use automatic brightness (held between 5-20%), GPS is on (For some Tasker profiles, but is rarely used), and I have never used NFC/S-Beam.
I have done factory resets, two since having issues with the battery. The phone is rooted and is running CM 10.1-20130203-NIGHTLY-d2att, I thought that updating the CM build might help (Feb 3rd as you can see), but hasn't. Also it is underclocked to MAX 810mHz. Battery usage statistics pins the main user as the screen, but I feel this is false.
TL;DR: I'm having battery problems, and have tried all the normal fixes I could find online. See the attached images for battery details.
Any suggestions are appreciated!
Thanks!
Click to expand...
Click to collapse
Get the app BetterBatteryStats to narrow down what's draining your battery.
Also, being so UV = takes longer to load stuff = longer screen time = more battery usage. UV too much results in higher battery drain.

Okay but...
BWolf56 said:
Get the app BetterBatteryStats to narrow down what's draining your battery.
Also, being so UV = takes longer to load stuff = longer screen time = more battery usage. UV too much results in higher battery drain.
Click to expand...
Click to collapse
Okay I just bought Better Battery Stats, I'll let it analyze whats going on for the next few days.. And I assume UV means under voltage? Either way I put the processor speed back up to default (1512 mHz). But that still doesn't explain the 60% battery drop in 20 minutes after being unplugged.

I don't think it is possible for your phone in any case to drain 60% in 20 minutes. That's a ton of power usage, your phone would probably melt if it was using that much. Sounds like your phone is not reading your battery level properly. You may want to try resetting your battery stats, however I have heard that the s3 battery monitors its own level. In this case you probably would be better off just getting a new battery.
Sent from my SGH-I747 using xda app-developers app

Terrible Battery Life. How Do I Diagnose the cause?

I'm experiencing pathetic battery life on my 10, which is just about a month old. This is without me using 4G LTE at all. Only Wi-Fi + 3G.
- I'm seeing drain in the range of 10-15% an hour with light usage.
- SOT never goes beyond 3-3.5 hours.
- I've installed the GSAM Battery monitor app. But there's nothing out of the ordinary on the stats. Screen always seems to consume about 30% of the battery. Rest is small bits from multiple apps.
I'm going to have to do a factory reset to fix this. But I really don't want to.
Is there any other fix?

bhardwajshash said:
I'm experiencing pathetic battery life on my 10, which is just about a month old. This is without me using 4G LTE at all. Only Wi-Fi + 3G.
- I'm seeing drain in the range of 10-15% an hour with light usage.
- SOT never goes beyond 3-3.5 hours.
- I've installed the GSAM Battery monitor app. But there's nothing out of the ordinary on the stats. Screen always seems to consume about 30% of the battery. Rest is small bits from multiple apps.
I'm going to have to do a factory reset to fix this. But I really don't want to.
Is there any other fix?
Click to expand...
Click to collapse
For me 3 - 3.5hrs SOT was normal on stock. Check settings/location/scanning and turn off wifi scanning that has been known to drain battery

+1 on the wifi scan. That will ghost your battery. I turn off vibration feedback as well along with restricting location permission on most of apps so my phone isn't constantly looking for itself on gps which will also drain battey

Disable FB notifications, wireless and BT scan, wireless notifications and optimalization . Set wifi to never when screen is off
Wysłane z mojego SM-T815 przy użyciu Tapatalka

bhardwajshash said:
I'm experiencing pathetic battery life on my 10, which is just about a month old. This is without me using 4G LTE at all. Only Wi-Fi + 3G.
- I'm seeing drain in the range of 10-15% an hour with light usage.
- SOT never goes beyond 3-3.5 hours.
- I've installed the GSAM Battery monitor app. But there's nothing out of the ordinary on the stats. Screen always seems to consume about 30% of the battery. Rest is small bits from multiple apps.
I'm going to have to do a factory reset to fix this. But I really don't want to.
Is there any other fix?
Click to expand...
Click to collapse
Battery life is subjective.
It'll depend on what you have running, what you restored, the apps and their state, your phone settings, brightness etc. What's connected and what you are doing on your phone..
HTC hasn't historically been the go to phone for great battery life.
A few hours 3-4 SOT is pretty decent for a phone.
You could do the normal things like, switching off connectivity options when not in use, ie location, wifi, data, NFC.
Check what apps are running, for example if Google photos is backing up your pics it's going to hit battery life.. Other apps will do the same, Facebook etc.
I'm not saying don't use your phone but depending on your habits you'll have varying degrees of stamina from your battery.
First thing to do, lighten the load, then grab better battery stats and see if anything is keeping it awake.

i suspect my router here and dhcp lease to be an issue, battery issue happens every dhcp lease (24hrs = 86400) when phone wifi does not turn off wifi after 15 minutes. static ip does not help at all, only rebooting wireless process on router. other than that battery life seems ok - 48 hrs light use.

How Bad is Your WiFi Standby Drain?

Reading through some battery threads I was told that the "proper" way to check your overnight drain was to charge up to 100% and not touch it until the next morning. I tried this last night and WiFi drain was in the 30% range (I used my phone before taking the screenshot which is why it's at 22%) with a total drop of 7% (100-93% over 8 hours).
Does this seem high?
I've got WiFi, NFC, battery saver location, mobile data, and double tap to wake on. The phone is rooted and I'm using a custom kernel (but I'm pretty sure it happened with the stock kernel too). I also have an Android Wear watch attached all night. On AOSP ROMs on my OP3T overnight drain was around 2% if I started at 100% and WiFi was never more than maybe 6% of total drain. Again, I'm not asking how to fix this, I'm just wondering if this is something that others are experiencing.
Thanks!

Mine dropped 2% over four hours of sleep. I'll try with battery saver on.

Mine averages about 3% in 8hrs with wifi on, I'll post a screenshot tomorrow, on freedomos using simplegx kernel

My WiFi drain is very low during idle. Like most flagships of this era.

mine is as same as op, but last night i charged it upto 74 and slept and when i got up after 6 hrs or so it dropped 2 %, strange ... maybe it's the way the phone is charged and calibrated for dash charging

I'm loosing 4-5% in 8 hours.

xocomaox said:
My WiFi drain is very low during idle. Like most flagships of this era.
Click to expand...
Click to collapse
Thanks for these screenshots. Obviously I don't have nearly the SOT that you do in my screenshot, but it looks like if our SOTs were the same you'd probably have similar WiFi percent usage.

Mine's been surprisingly bad - at least, worse than my Moto G5S, Galaxy S8+ or iPhone 8 Plus were. I'm losing like 5-7% every four hours, my battery drain while connected to wifi at work is way worse than either of the other phones mentioned too.
All in all it's kind of disappointing considering how good the OP5T is in literally every other regard.

shadeau said:
Thanks for these screenshots. Obviously I don't have nearly the SOT that you do in my screenshot, but it looks like if our SOTs were the same you'd probably have similar WiFi percent usage.
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We may have similar WiFi usage. But my drain is about .5% per hour, overnight. I don't consider that high, and battery consumption has to be attributed to something. Here is my current usage since yesterday's charge.

On 8.0 the WiFi drain % is even lower, but idle drain per hour is the same. So it doesn't really matter.

Very bad.. Battery go. Down quickly in night..

My wifi drain is also really bad on the latest 4.7.4
Hope they release a fix soon...
Edit... I did a fresh install with stock 4.7.4 and it isn't as bad but still is present. At least it's more tolerable.
Sent from my ONEPLUS A5010 using Tapatalk

So I did another test last night (4.7.4 and SimpleGX kernel) and had 3% drain. With all the comments here I think the high percentage of WiFi is normal and probably not affecting battery life a lot. I am starting to think the kernel may be providing better results than stock 4.7.4 though since a lot of people are mentioning poor battery on 4.7.4.

I don't even know how long, all I can say is my battery drains 3% every 9 and a half hours. Both bluetooth and wifi was on. This is on the stock rom and kernal, not sure how you guys have such high battery drain... Are you guys sure it isn't another app hijacking your battery? Because from my experience the battery stats isn't always perfect. Sometimes I was told that it was my screen (on my old phone) in which it was actually a 3rd party app. After removing the app, my battery drain went a lot slower than usual.

Has anyone tried this toggle in Developer options?

showofdeth said:
Has anyone tried this toggle in Developer options?
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Just tried that setting last night and it doesn't make much difference.
For all wondering I have an Android Wear device connected 24/7 and location set to battery saving. I also keep NFC and data on all night. I'm not using screen-off gestures though.

I wish it was only 7% or something like that on my OP5T.
I used to be one of you 3%-battery-"drain"-at-night-guys, until the official update to Oreo. Now it uses 36% in 6h38m, of which WiFi is reported being 29% (1044mah, despite 0m active and background usage reported). There is 2.8MB additional use according to the WiFi data usage report that was set to count from today, yet the numbers per app have decreased, so there goes reliability on that. I haven't added or removed any apps, only wiped cache after the update. On standby, it only takes 18 hours for it to drain, which used to be several days.
Another weird thing is that WiFi is terribly slow since the same update, but only on this device. (No numbers yet)
Right now my plan is to test all the mentioned related settings, as well as WiFi off, make screenshots after each nightly test, and finally do a complete wipe and perform the same tests with a minimum of apps, and then redo them again with my usual set of apps. It could still be one or more apps that misbehave on Oreo specifically I suppose, so if there's any indication for that, I will start eliminating apps one by one until I find the culprit.