Develop Bugs

Overheating OnePlus 3 while charging.

Hey people.
I own the OnePlus 3 and its is on a custom ROM Named Experience OS based on OB 17.
Its running on the kernel provided by the ROM and firmware is also stock as I use TWRP from Blu_spark v 33.
Now the problem is when I am charging the device it heats up abnormally high note higher than 46 degrees.
And also I get bad standby time with only upto 4 and a half hour Run time between charges.
I have noticed high drainage from Android System.
I charge only upto 80℅.
Tell me where I am wrong.
Do I need to visit the service center..??
If you require additional information do tell me.

Joyo-rocker said:
Hey people.
I own the OnePlus 3 and its is on a custom ROM Named Experience OS based on OB 17.
Its running on the kernel provided by the ROM and firmware is also stock as I use TWRP from Blu_spark v 33.
Now the problem is when I am charging the device it heats up abnormally high note higher than 46 degrees.
And also I get bad standby time with only upto 4 and a half hour Run time between charges.
I have noticed high drainage from Android System.
I charge only upto 80℅.
Tell me where I am wrong.
Do I need to visit the service center..??
If you require additional information do tell me.
Click to expand...
Click to collapse
Try another ROM or kernal. I think sultan's ROM has better battery experice and less heat issues. Try to switch to Sultan's.

Something isn't right since dash is meant to take the heat away from the device while it's charging
Are you using the phone at the same time? Also check your app usage maybe a rouge app is keeping it away while charging and causing the heat

+1 i too face the heating issue while the phone is charging. I had a strange incident as well: When i visited my parent's house last week, i received a phone call while it was getting charged and since it was from a family person i told my father to receive it in my place as he was standing near the phone. As soon he touched the phone to his ears he told, "it's is very son".
I have been facing this since last couple of months when i used to have stock oos. Then unlocked bootloader and started triying different roms. But the heating problemus still there and instead i got addicted to installing roms every week?

Joyo-rocker said:
Hey people.
I own the OnePlus 3 and its is on a custom ROM Named Experience OS based on OB 17.
Its running on the kernel provided by the ROM and firmware is also stock as I use TWRP from Blu_spark v 33.
Now the problem is when I am charging the device it heats up abnormally high note higher than 46 degrees.
And also I get bad standby time with only upto 4 and a half hour Run time between charges.
I have noticed high drainage from Android System.
I charge only upto 80℅.
Tell me where I am wrong.
Do I need to visit the service center..??
If you require additional information do tell me.
Click to expand...
Click to collapse
Well can you provide us some data atleast? It's not normal that you have to charge your phone every few hours. This means something is draining your phone most likly an user app.. Have you tried a full clean install / factory reset with the unbrick tool (method). With 46 degree you mean Battery temp or whatever? What is your surrounding temperature?

same problem , even i'm charging my op3 from a normal charger. device temp. gets upto 42-43 C .. i live in delhi, india and its too hot here.
and one more thing that only 50 minutes takes my fon to get fully charged ,if i charge my op3 from dash charger . i dont think its good !! high temp. is not good for Li batteries
every thing stock except twrp recovery !! tried many roms but oxygen is better out of those !!

Puddi_Puddin said:
Well can you provide us some data atleast? It's not normal that you have to charge your phone every few hours. This means something is draining your phone most likly an user app.. Have you tried a full clean install / factory reset with the unbrick tool (method). With 46 degree you mean Battery temp or whatever? What is your surrounding temperature?
Click to expand...
Click to collapse
Well I will be glad to provide you data...
But what data do you want..??
And what should I use to give you data.
46 is the battery temperature.
And it's hot around my place at about 41 degree Celsius.
I haven't used the full unbrick tool yet.
Is it really required as I have to backup first XD

liam_davenport said:
Something isn't right since dash is meant to take the heat away from the device while it's charging
Are you using the phone at the same time? Also check your app usage maybe a rouge app is keeping it away while charging and causing the heat
Click to expand...
Click to collapse
As soon as I use my phone the phone starts cooling down.
But as soon as I set it down it heats up again.
Tried checking for rouge app found Instagram stopped it but still no effect.
I even used the fix zip from the dev behind Experience OS.

Joyo-rocker said:
Well I will be glad to provide you data...
But what data do you want..??
And what should I use to give you data.
46 is the battery temperature.
And it's hot around my place at about 41 degree Celsius.
I haven't used the full unbrick tool yet.
Is it really required as I have to backup first XD
Click to expand...
Click to collapse
Joyo-rocker said:
As soon as I use my phone the phone starts cooling down.
But as soon as I set it down it heats up again.
Tried checking for rouge app found Instagram stopped it but still no effect.
I even used the fix zip from the dev behind Experience OS.
Click to expand...
Click to collapse
Well you see. When you lay down your phone it will go into deep sleep. Deep sleep doesn't use alot of power which means your device won't heat up at all. In your case it does, as you describe you have only 4.5hr of standby which means something is draining your phone drastically. Can you provide some screen shots of your battery stats? Post as many different screen shots as you can. Also BetterBatteryStats is a really good app you can find the free version on XDA.

This was asked in the ExperienceOS thread too.
You have a runaway process on your phone. This will use 20-30% CPU on all cores all the time, more or less. Use an app that can check the KERNEL log like 3C Toolbox and you'll find that the heat is due to excessive logging (like several lines every second) from the same process. One of the more common issues is the kernel not able to get write permission for the pm-service to thr IPC Router. THis is solved by setting SElinux PERMISSIVE until the kernel can write to it.
This will make your phone charge slower, get hotter while doing it and give you lower SOT.
Usually this is due to using Magisk, since Magisk has issues with the sepolicy and needs to set SElinux to permissive. If SElinux is Enforcing (as it SHOULD be to protect your phone) the above issue will arise.
If you're using SuperSU then Jamal issued a FIX for this as he made an error in the init.d config for SuperSU 2.82. Basically the two issues are identical as far as the end user is concerned.
All this can be found in the Experience thread where you asked the same question and did not read the 10 posts right above your question.

Quick charge doesn't work on global ROM

The only time quick charge has worked on my phone is with the original ROM that came on the device. I've tried the developer rom and global stable, and neither of these work with quick charge. Even with the supplied wall charger it peaks at 1.7 amps. All my USB battery banks charge it at that speed too. I was able to charge at 3.2 amps with the original rom. Anyone else?

Same here after updating to miui9 it doesn't work.

Quick Charge Not Working.
DJSLINKARD said:
The only time quick charge has worked on my phone is with the original ROM that came on the device. I've tried the developer rom and global stable, and neither of these work with quick charge. Even with the supplied wall charger it peaks at 1.7 amps. All my USB battery banks charge it at that speed too. I was able to charge at 3.2 amps with the original rom. Anyone else?
Click to expand...
Click to collapse
Facing the same after MIUI 9 Update.

Yep, I just confirmed it by reinstalling miui 8 global. Quick charge works on that one, but not on 9.

Gamerz_den said:
Facing the same after MIUI 9 Update.
Click to expand...
Click to collapse
I don't get the charging rapidly message anymore on the new global rom either but ampere said that my phone was charging at 2.7A (battery was about 80% full) before it peaked and started gong down as it 90% etc....

This is a known bug... Report this to miui, not here
Global beta 7.11.6 is also miui 9.1... There its working

el3c said:
This is a known bug... Report this to miui, not here
Global beta 7.11.6 is also miui 9.1... There its working
Click to expand...
Click to collapse
If it's a known bug why would I report it anyways? It's already known. I'm using a forum for open discussion as that's the point of a forum.
I'll try the 7.11.6 ROM and see.
Edit: 7.11 is the developer ROM. I've already tried that one and quick charge does not work. For me it's only working on miui 8. None of the miui 9 ROMs have shown the charging current on the lock screen. I had to use a Drok USB meter to test the charge speed on miui 9 since the lock screen no longer shows the charge current.

DJSLINKARD said:
If it's a known bug why would I report it anyways? It's already known. I'm using a forum for open discussion as that's the point of a forum.
I'll try the 7.11.6 ROM and see.
Edit: 7.11 is the developer ROM. I've already tried that one and quick charge does not work. For me it's only working on miui 8. None of the miui 9 ROMs have shown the charging current on the lock screen. I had to use a Drok USB meter to test the charge speed on miui 9 since the lock screen no longer shows the charge current.
Click to expand...
Click to collapse
7.11.6 has a working quick charge!

It's working for me on the 9.1.1.0 global stable rom. Let the screen turn off completely then press the power button and you should get "Quick charging, tap to view details" at the bottom. It doesn't stay there very long and changes to "About x mins until full" after a few seconds and then the quick charging notice doesn't ever seem to come back again.. It seems it only shows on the lock screen and even then just for a few seconds. It does work though

9.1.1.0 Global stable working on my Mi Mix 2

Working on my Mi Mix 2 with 9.1.1.0 Global stable rom and original charger

colorado_al said:
Working on my Mi Mix 2 with 9.1.1.0 Global stable rom and original charger
Click to expand...
Click to collapse
Are you 100% sure its working? I see so many posts about people experiencing the exact same issue as me. Are you still on 9.1.1.0 or did you update to 9.1.2?

mine work perfectly with latest update miui 9 )

Sosoon2816 said:
mine work perfectly with latest update miui 9 )
Click to expand...
Click to collapse
Ok, so I just upgraded to the 9.1.2.0 Global stable again, and it looks like quick charge is working, but they've just removed the amperage reading from the lock screen, which sucks because that was such a clutch feature.

DJSLINKARD said:
Ok, so I just upgraded to the 9.1.2.0 Global stable again, and it looks like quick charge is working, but they've just removed the amperage reading from the lock screen, which sucks because that was such a clutch feature.
Click to expand...
Click to collapse
idk why, but i think it would not have much effect to me, right now, i just want the next update will support quick reply at lock screen

Quick charge doesn't work with the standard charger. I had the global dev and now the global stable of MIUI 9 and with both quick charge works perfectly fine, just not with the standard charger.

DaSoul said:
Quick charge doesn't work with the standard charger. I had the global dev and now the global stable of MIUI 9 and with both quick charge works perfectly fine, just not with the standard charger.
Click to expand...
Click to collapse
Why is this so inconsistent for everyone? Quick charge definitely works for me on the standard charger, although I don't use it. I'm on the latest 9.1.2 global stable.
As I said before, quick charge DOES work on 9.1.2 global stable, but without an app like ampere you'll never know it's actually working. We need to be able to see the actual charging current, and not some notification that says that it's quick charging.

Global Stable 9.5.4.0 (Oreo), QC works, but only with 6V and 1,2A

What's the effect of Second Space on battery life?

For those of you who use Second Space. I want to use it plain as my guest mode with nothing really running in parallel. What will it do to the stellar battery life I'm enjoying now?

second space has the same battary and speed impact as using fdu encryption in android, if you already have your android encrypted the battary and performance impact will be the same

I have used second space for about 3 weeks and for me there was a significant impact on battery life. Without second space.. I can last a full day with moderate usage. With second space running and switching back and forth, my phone is usually out of juice at around 3-4pm, having started my day at 8am

I have used 2nd space for almost two years and never ran out of battery in a day. I charged around 11:30 pm and usually had about 32-60% remaining. Heavy GPS use could get me to about 20%. My usage is non-standard however. I use an ancient Blackberry 8100 for voice and text. I used data-only sims in the note 3 (snapdragon), no voice calls.

bobcov said:
I have used 2nd space for almost two years and never ran out of battery in a day. I charged around 11:30 pm and usually had about 32-60% remaining. Heavy GPS use could get me to about 20%. My usage is non-standard however. I use an ancient Blackberry 8100 for voice and text. I used data-only sims in the note 3 (snapdragon), no voice calls.
Click to expand...
Click to collapse
You've mentioned a Blackberry and a Note 3. So what do you use the Mix2 for? Do you own a Mix2?

Oh, "Mi" bad. I missed that the question was for a specific phone. I made the assumption, unwarranted, that all Xiaomi phones would reflect similar behavior from running 2nd space. I also own a Mi 5s, but it eats battery so fast while doing little or nothing that I don't even take it out of the house. It has 2nd space active, but it was a poor performer before 2nd space. I think it is because of the Snapdragon 821. It's a sportscar that just can't slow down.

bobcov said:
Oh, "Mi" bad. I missed that the question was for a specific phone. I made the assumption, unwarranted, that all Xiaomi phones would reflect similar behavior from running 2nd space. I also own a Mi 5s, but it eats battery so fast while doing little or nothing that I don't even take it out of the house. It has 2nd space active, but it was a poor performer before 2nd space. I think it is because of the Snapdragon 821. It's a sportscar that just can't slow down.
Click to expand...
Click to collapse
Interesting. That's the first I'm hearing of any Xiaomi phone having poor battery life. Thanks for the info on 2nd space.

Twotems said:
Interesting. That's the first I'm hearing of any Xiaomi phone having poor battery life. Thanks for the info on 2nd space.[/QUOTE
Your comment got me interested in digging a little further. The biggest battery drain was Chrome, even when I force quit Chrome and reboot. I finally can't uninstall it, but I did install Firefox and finally, I do not see Chrome taking huge amounts of power. I also turned on MIUI optimization, although it is hard to say from various postings if this is good or bad. Regardless, the battery is crying for a charge again already. I'm next going to load a CPU program to limit the top speed of the processors and see what effect that has. This is a great phone...if you keep it plugged in.
Click to expand...
Click to collapse

bobcov said:
Twotems said:
Interesting. That's the first I'm hearing of any Xiaomi phone having poor battery life. Thanks for the info on 2nd space.[/QUOTE
Your comment got me interested in digging a little further. The biggest battery drain was Chrome, even when I force quit Chrome and reboot. I finally can't uninstall it, but I did install Firefox and finally, I do not see Chrome taking huge amounts of power. I also turned on MIUI optimization, although it is hard to say from various postings if this is good or bad. Regardless, the battery is crying for a charge again already. I'm next going to load a CPU program to limit the top speed of the processors and see what effect that has. This is a great phone...if you keep it plugged in.
Click to expand...
Click to collapse
Your battery problem lies elsewhere and it's not the soc. The Mi 5s has very good battery life. Take a look at your setup and what apps you're running. By default miui kills all non-system apps. I suspect you have installed something that's misbehaving.
Click to expand...
Click to collapse

Many people have reported symptoms identical to mine: very hot operating temperatures, very short battery life. Others have tried various MIUI versions, various non-stock ROM configurations, various power and app configurations, all to no avail. Very interestingly, two people have asserted the problem is the process running the fingerprint reader. One reported that the heat and battery problems ceased when the qualcomm biometric service was halted (not sure how that was accomplished). As for installation of misbehaving apps, this phone was this way out of the box. I literally do not use it for anything beyond running the Xiaomi vacuum, which in contrast to this phone sucks positively, and an ebay app. I stopped using Chrome a few days ago, because it showed high idle use, but still the battery life is very short. I have a Redmi Note 4 here which is at 48% battery as I write this. It was last charged on the 2nd of June. It has been sitting idle with only periodic use. During the same time period, the Mi5s has required many full charges.
---------- Post added at 10:48 PM ---------- Previous post was at 10:13 PM ----------
Twotems said:
bobcov said:
Your battery problem lies elsewhere and it's not the soc. The Mi 5s has very good battery life. Take a look at your setup and what apps you're running. By default miui kills all non-system apps. I suspect you have installed something that's misbehaving.
Click to expand...
Click to collapse
Following on to my post above, which I should have included below your post, I dug up more information from xiaomi.eu and the miui forum by searching "qfp service battery drain" in google. One comment:" It's a well known fact that starting from 8.2 (on Mi5S) the qfp-service is preventing deep sleep and causing battery drain." But another posting disputes the version-related association: " I have a problem with my Mi5S with Xiaomi.eu 7.1.20 ROM. After few days of usage I noted a strange battery drain, especially when the phone is in idle. Looking for the reason of this drain I found that qfp-service (fingerprint sensor) is doing hundreds of wakelocks." Another interesting avenue of investigation: "A couple of friends with Chinese Dev ROM say that they haven't any problem with qfp-service and battery is awesome. I think the problem is with Xiaomi.eu ROM" The apparent best solution is this one: "new update now with a "final" solution. i just uninstalled the qualcomm qti biometrics fingerprint service completely with a root uninstaller. the cpu wakelocks stopped immediately, fingerprint sensor is still working fine."
Click to expand...
Click to collapse

bobcov said:
Many people have reported symptoms identical to mine: very hot operating temperatures, very short battery life. Others have tried various MIUI versions, various non-stock ROM configurations, various power and app configurations, all to no avail. Very interestingly, two people have asserted the problem is the process running the fingerprint reader. One reported that the heat and battery problems ceased when the qualcomm biometric service was halted (not sure how that was accomplished). As for installation of misbehaving apps, this phone was this way out of the box. I literally do not use it for anything beyond running the Xiaomi vacuum, which in contrast to this phone sucks positively, and an ebay app. I stopped using Chrome a few days ago, because it showed high idle use, but still the battery life is very short. I have a Redmi Note 4 here which is at 48% battery as I write this. It was last charged on the 2nd of June. It has been sitting idle with only periodic use. During the same time period, the Mi5s has required many full charges.
---------- Post added at 10:48 PM ---------- Previous post was at 10:13 PM ----------
Twotems said:
Following on to my post above, which I should have included below your post, I dug up more information from xiaomi.eu and the miui forum by searching "qfp service battery drain" in google. One comment:" It's a well known fact that starting from 8.2 (on Mi5S) the qfp-service is preventing deep sleep and causing battery drain." But another posting disputes the version-related association: " I have a problem with my Mi5S with Xiaomi.eu 7.1.20 ROM. After few days of usage I noted a strange battery drain, especially when the phone is in idle. Looking for the reason of this drain I found that qfp-service (fingerprint sensor) is doing hundreds of wakelocks." Another interesting avenue of investigation: "A couple of friends with Chinese Dev ROM say that they haven't any problem with qfp-service and battery is awesome. I think the problem is with Xiaomi.eu ROM" The apparent best solution is this one: "new update now with a "final" solution. i just uninstalled the qualcomm qti biometrics fingerprint service completely with a root uninstaller. the cpu wakelocks stopped immediately, fingerprint sensor is still working fine."
Click to expand...
Click to collapse
Thanks for the clarifications. First, I'm not a fan of custom roms as they tend to introduce more problems than they supposedly" solve", all for the sake of stock android.
I recall that when I first got my Redmi Note 3 Pro there was a wakelock or battery drain that puzzled me too. After doing some research I learned that there's a system app called xxxx. qualcomm.xxx (I can't remember the name exactly) that was causing it and could be disabled. Once I did that I was good to go.
My Note 3 came with a vendor rom and no matter how good a rom might be, it can never match the optimizations of the original. It's very possible that your phone came with a vendor rom as they were fond of selling them that way in order for gapps to work out of the box. My suggestion would be to put the latest original Miui9 on your phone and work from there. Personally I see no reason for custom roms because miui gives the user so much control over their phone anyway.
Click to expand...
Click to collapse

Twotems said:
bobcov said:
Many people have reported symptoms identical to mine: very hot operating temperatures, very short battery life. Others have tried various MIUI versions, various non-stock ROM configurations, various power and app configurations, all to no avail. Very interestingly, two people have asserted the problem is the process running the fingerprint reader. One reported that the heat and battery problems ceased when the qualcomm biometric service was halted (not sure how that was accomplished). As for installation of misbehaving apps, this phone was this way out of the box. I literally do not use it for anything beyond running the Xiaomi vacuum, which in contrast to this phone sucks positively, and an ebay app. I stopped using Chrome a few days ago, because it showed high idle use, but still the battery life is very short. I have a Redmi Note 4 here which is at 48% battery as I write this. It was last charged on the 2nd of June. It has been sitting idle with only periodic use. During the same time period, the Mi5s has required many full charges.
---------- Post added at 10:48 PM ---------- Previous post was at 10:13 PM ----------
Thanks for the clarifications. First, I'm not a fan of custom roms as they tend to introduce more problems than they supposedly" solve", all for the sake of stock android.
I recall that when I first got my Redmi Note 3 Pro there was a wakelock or battery drain that puzzled me too. After doing some research I learned that there's a system app called xxxx. qualcomm.xxx (I can't remember the name exactly) that was causing it and could be disabled. Once I did that I was good to go.
My Note 3 came with a vendor rom and no matter how good a rom might be, it can never match the optimizations of the original. It's very possible that your phone came with a vendor rom as they were fond of selling them that way in order for gapps to work out of the box. My suggestion would be to put the latest original Miui9 on your phone and work from there. Personally I see no reason for custom roms because miui gives the user so much control over their phone anyway.
Click to expand...
Click to collapse
That's a good point. The Mi5s has the latest over the air from Xiaomi, but maybe it's from the vendor? Never had any problem with the other three Xiaomi phones I have owned. I do like specialized roms a lot, but I like Second Space more. That's the only reason I have not put alternate builds, especially Revolution Remix, on the phones I've owned. I'm glad you have prompted me to look into the root cause (no pun intended) of this issue. Since removing the fingerprint password and not touching the fingerprint reader, the phone's power use after rebooting has gone way, way, way, WAY down. Maybe. I'm looking at 228mah current drain, which is nothing. I'm going to take the phone out on a walk today and see how it does. If It is "fixed", then I will look at rooting it just to get rid of the Qualcomm module so that I can use the fingerprint reader without draining the battery. I really do not want to unlock the bootloader, but it seems there is no choice in order to get root.
Click to expand...
Click to collapse

Slow charging on custom rom

Slow charging on custom ROMs while it's good on MIUI 9 and 10 but when I flash a custom ROMs 8 or 9 facing slow charging issue only 970ma on custom ROMs charging from quick charge 3.0 but on MIUI 10 it's normally working good .
Need help

Which custom Rom and kernel? I tried PE Pie, McAOSP and AOSiP Oreo all support quick charge. Kernel = Derp or Kirks!

Zanr Zij said:
Which custom Rom and kernel? I tried PE Pie, McAOSP and AOSiP Oreo all support quick charge. Kernel = Derp or Kirks!
Click to expand...
Click to collapse
I don't install other kernal only use the one which comes with room using PE and facing issue .

SSfalcon said:
I don't install other kernal only use the one which comes with room using PE and facing issue .
Click to expand...
Click to collapse
Derp is the built in kernel of PE and I have no problem with charging

If the phone goes to sleep then charging ramps up to 1600-1900 mAh,if you use the phone while charging the rate hovers around 600-1000 mAh.

epicwarlock said:
If the phone goes to sleep then charging ramps up to 1600-1900 mAh,if you use the phone while charging the rate hovers around 600-1000 mAh.
Click to expand...
Click to collapse
I don't use the phone while charging but screen while be on without any use and it shows 970ma on Ampere app

With Kirks kernel, even using while charging, it still good, much faster than stock kernel

Zanr Zij said:
With Kirks kernel, even using while charging, it still good, much faster than stock kernel
Click to expand...
Click to collapse
How many mAh do you get

SSfalcon said:
How many mAh do you get
Click to expand...
Click to collapse
About 2000-2500mAh

Zanr Zij said:
About 2000-2500mAh
Click to expand...
Click to collapse
Without any use I get 970 ma only what's the issue I don't know .
Do you ??

SSfalcon said:
Without any use I get 970 ma only what's the issue I don't know .
Do you ??
Click to expand...
Click to collapse
How do you measure it?

Zanr Zij said:
How do you measure it?
Click to expand...
Click to collapse
Though Ampere app on playstore.

SSfalcon said:
Though Ampere app on playstore.
Click to expand...
Click to collapse
Find something like USB Tester. But first change your cable

I use this one https://www.ebay.ca/itm/LCD-USB-Det...m=291967968309&_trksid=p2047675.c100005.m1851 to measure. I don't have any charging issues on custom ROM's (been using Pixel Experience 8.1/9.0) and it charges the same as MIUI did. I use a Choetech cable, and have used 2 different QC 3.0 chargers. I charge at around 14w, which may be the max my cable supports. I have never used the original Xiaomi cable/charger.

I tried kangaroox kernel and it shows wayyy low mili ampers on aida64 battery section... And my phone also dosent heat up like when i used stock rom while charging... this also happens in pixle experience rom too.... Can you measure it too...??

Extending battery life - what are my options?

Hello,
The battery of my OnePlus 3 has to be fully charged to survive a day. I want to keep my phone as performance, camera and display are still fine and new phones have so many downsides somehow (no headphone jack, weird notch situation, high SAR values, oversized,..).
What are my options to extend the battery life?
- replace the battery with a OnePlus 3T battery?
- which custom kernel or custom rom do you suggest?
- other suggestions?
Currently i am on the Pie community beta. Battery life has gotten worse when i updated, i can tell you that. My personal preference for the next OS would be a privacy-focused OS.

orawnnd said:
Hello,
The battery of my OnePlus 3 has to be fully charged to survive a day. I want to keep my phone as performance, camera and display are still fine and new phones have so many downsides somehow (no headphone jack, weird notch situation, high SAR values, oversized,..).
What are my options to extend the battery life?
- replace the battery with a OnePlus 3T battery?
- which custom kernel or custom rom do you suggest?
- other suggestions?
Currently i am on the Pie community beta. Battery life has gotten worse when i updated, i can tell you that. My personal preference for the next OS would be a privacy-focused OS.
Click to expand...
Click to collapse
Have a go at the skydragon ROM it's normally very good with battery but for more privacy focused you'd have to flash lineage with no gapps and use alternatives from f-droid or yalp store for things like playstore and messaging etc...

Xceeder said:
Have a go at the skydragon ROM it's normally very good with battery but for more privacy focused you'd have to flash lineage with no gapps and use alternatives from f-droid or yalp store for things like playstore and messaging etc...
Click to expand...
Click to collapse
Thank you for the answer. I've heard of both Skydragon and Lineage OS. I was hoping for something like LineageOS with a battery-saving Kernel (I've no experience with flashing kernels).

orawnnd said:
Thank you for the answer. I've heard of both Skydragon and Lineage OS. I was hoping for something like LineageOS with a battery-saving Kernel (I've no experience with flashing kernels).
Click to expand...
Click to collapse
u flash a kernel like a rom thats it just do it at separate times

@orawnnd
I wouldn't advise a 3T battery. It may create issues. In addition, the 3 and 3T batteries were likely manufactured a couple of years back and sitting on the shelf all this time. So they may deteriorate fast. Still a better option than going for 3rd party batteries.
Regarding ROMs, the OOS Pie Open Beta has been excellent in all respects, including battery drain, for me. May be a clean flash and not restoring apps will make a difference for you.
As for SkyDragon, I was using it for sometime and it was also excellent in all respects. But, of late, there are complaints of unexplained battery drain in its thread, not for all but atleast for some. I have not tested LOS in my OP3 though I run it in my N4. Again excellent results.

tnsmani said:
@orawnnd
I wouldn't advise a 3T battery. It may create issues. In addition, the 3 and 3T batteries were likely manufactured a couple of years back and sitting on the shelf all this time. So they may deteriorate fast. Still a better option than going for 3rd party batteries.
Regarding ROMs, the OOS Pie Open Beta has been excellent in all respects, including battery drain, for me. May be a clean flash and not restoring apps will make a difference for you.
As for SkyDragon, I was using it for sometime and it was also excellent in all respects. But, of late, there are complaints of unexplained battery drain in its thread, not for all but atleast for some. I have not tested LOS in my OP3 though I run it in my N4. Again excellent results.
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This is true. Settled on LOS after trying all other roms, they had explainable battery drain issues with time. Even tho, I don't see a plus in battery saving on LOS. Battery performance is "OKAY". LOS is just smoother.
IMHO stock is the best for battery. :good:

I recommend you install accubattery from the play store( free app) and check your battery health before you decide on a battery change. It also lets you see how much the battery has degraded over time. My OnePlus 3 is currently at 86% life
Sent from my ONEPLUS A5010 using Tapatalk

1. Replacing OP3 with OP3T battery won't work. This is debunked already - don't try it.
2. Sadly your only options:
a) Replace battery with new one.
b) Flash custom ROM onto your phone. Read comments about latest build on every ROM thread - people point out things like battery life etc. e.g. SkyDragon latest build seems to have battery issues (people reporting it in comments).
c) Power bank. Really. Things like this is also an option, but I don't see any on ebay for OP3.

I'm ordered a battery for my op3,this battery it's for op3t,in about a month I will tell you how it's it.
CZK 298.70 | 2019 NEW LEHEHE BLP571 BLP597 BLP613 BLP633 BLP637 Battery For Oneplus 1 2 3 3T 5 Cell Phone Batteries With Tools Gifts
https://s.click.aliexpress.com/e/lhDAjJi

marian daciu said:
I'm ordered a battery for my op3,this battery it's for op3t,in about a month I will tell you how it's it.
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Still awaiting for the response/review.

MrPokeboy8 said:
Still awaiting for the response/review.
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Sorry for the late response,the phone with the new
battery not booting.
I'm on official pie rom from OnePlus.

Have you got anything important on the device

use any custom kernel that supports cpu frequency changing. Underclock cpu to 60%(bit cluster have huge impact on battery) when you dont heavily use your op3/t . You will notice significant battery improvement.