Database Users

random hardware issues? your battery might be going bad!

Hi everyone!
(TL;DR: i had hardware issues - overheating, slow mobile data, crappy battery life on 3G, non-responsiveness, etc. - that all got solved by replacing the battery for a new one)
I've been a faithful N1 user (briefly went to the nexus S, but came back) since april 2010, and my nexus one has been great ever since i got it.
A few months ago, I started having random hardware issues: first my camera led wouldn't turn on, then the speaker and vibrating motor went bad (I replaced all three parts with spares from ebay), and while i thought everything was repaired, I started having serious battery life and other random issues i couldn't really diagnose.
My phone would overheat after around 5 minutes with the screen on (i.e. while reading the morning news), 3G data was spotty and very slow, and the phone would sometimes be unresponsive for brief amounts of time. Also, my battery life dropped from lasting the whole day, to not even reaching 3PM. I managed to solve most of the issues by going 2G only - after all, I said, it's been almost 2 years and the phone was bound to go bad some time - however, the phone never really felt stable again.
In the meantime, I bought an OEM battery and a replacement digitizer (my battery stats blamed the screen for like 90% of battery consumption, so I guessed there was some sort of electric short on the digitizer or lcd, and the battery calibration app said my battery was only 84% fit), so I guessed I could try one last round of repairs before declaring my N1 retired. I even bought a Sensation in preparation to that sad moment.
Long story short, I swapped batteries 2 days ago and all my issues disappeared as if it was magic. Now I'm at 60% battery, with 3G on all day, and it's been 13 hours on, yesterday was similar. The phone has never overheated again since the battery replacement, and has been as responsive as I can remember, and mobile data has been somewhat faster (I blame my carrier for sucky speeds).
So, if you are experiencing weird hardware issues like mine, sudden changes in behaviour or just plain sucky battery life, it might mean it's time to get a replacement!! my battery lasted for about 2 years, and that's a very very good run.
Also, a bad battery was most probably the cause of the other components going bad, since i guess it didn't provide a stable supply of power.
Now I'm in love with my N1 again, and don't know what I'm gonna do with the Sensation I bought in desperation!!
Just sharing my story, maybe it can help somebody get their N1 back on full working condition.

Soooo agree!
I recently got my Nexus from my Dad. He blamed it for many things, included sudden reboot and overheating. I tried a bunch of GB roms, even stock (on which I even can't boot in with SIM on) and then I thought of the battery's fault.
As I can't find an OEM one, I just pick a new chinese battery, a SCUD 1420, the brand is kinda well-known as a decent battery replacement in town. Well, the battery life isn't that good, but now my phone hasn't reboot since then. Especially now when I run ICS, very smooth for an old N1
Still, could you tell me where did you get your battery please? I'm looking for an OEM that has better battery life.
Viva el N1

I bought from this seller on ebay. At least my unit looks ok (not exactly like the original battery that came with the phone, but very close).
it's also quite cheap, considering it revived my phone.
http://www.ebay.com/itm/33046584691...X:IT&_trksid=p3984.m1439.l2649#ht_1849wt_1189

mine gets a little overheat (debug mode even shows "overheating") when charging the original battery.
and since it was new, the touchscreen does not work if the screen is on for a long time while charging.
just got a new 3.2A/H battery, it haven't solved the touch screen the slightest
still not showing overheating though... but the original one showed even when it was new.

Heavy battery drain

I am experiencing an extreme battery drain issue in where the original HTC battery discharges from 100% to 0% in a couple of hours.
So a couple of days ago all of a sudden my phone started overheating. I rebooted it as I thought it might get rid of some excessive CPU usage from an unknown app, but that is not the case. I downloaded quick system info to get an idea of the CPU usage but it seems very normal, idling around 9%.
Then I did a full wipe and flashed the version 8.2 of Ice Cold Sandwich. My radio is also the most recent XX_28. Battery calibration has been done too. Pretty much all the capabilities software-wise don't seem to work.
When idling the phone consumes 630ma according to battery monitor. It gets very hot both while in idle, under load and while charging (45 degrees).
I tried my backup battery which has not been used before. It is a cheap one from Ebay just to test if the original battery has failed. But exactly the same problems occur.
For me it's pretty clear that there is not much left software-wise to do. Any recommendations would be appreciated.

RRU and return to carrier/HTC
Sent from my Desire HD using Swype beta for Android!

I had the same problem. I tried loads of things, in the end I had to send it back to my carrier and turns out there was a fault.

This got solved folks. I used AAHK in order to install an HTC rom and to put S-ON. Then I returned it to HTC. They sent me a new device and a new battery. Great service considering the fact that I couldn't find the invoice when I bought it. But they still accepted the device based on the serial number.

Battery drops from 30 to 0 in minutes

Hello,
I have a problem with battery, it drains normally until it reaches 40 or 30 percent, after that it suddenly start dropping rapidly until it shuts off in just a few minutes and acts like dead. I think this started happening after MM update, I've found several answers online but none of them is from an active Note 4 user but from tech specialist, suggesting it might be both a battery problem or a software problem too. Also, some people state that a new battery solved the problem, but also many of them bought the new OEM battery but the problem still exists even with the new battery.
Does any of the users on xda have the same issue after MM? I don't want to waste money for a new battery if it's not a battery problem. And again, I dont know if and when will Samsung release an update for this kind of bug if its a software thing... I would like to know if I'm alone with this and hear some thoughts on buying a new battery or no?

ljubimci said:
Hello,
I have a problem with battery, it drains normally until it reaches 40 or 30 percent, after that it suddenly start dropping rapidly until it shuts off in just a few minutes and acts like dead. I think this started happening after MM update, I've found several answers online but none of them is from an active Note 4 user but from tech specialist, suggesting it might be both a battery problem or a software problem too. Also, some people state that a new battery solved the problem, but also many of them bought the new OEM battery but the problem still exists even with the new battery.
Does any of the users on xda have the same issue after MM? I don't want to waste money for a new battery if it's not a battery problem. And again, I dont know if and when will Samsung release an update for this kind of bug if its a software thing... I would like to know if I'm alone with this and hear some thoughts on buying a new battery or no?
Click to expand...
Click to collapse
It's your battery!
Your battery has deteriorated to a point that it only hold around 70% of its original capacity.
I have 4 original batteries which 2 of them are new & 2 of them are old, deteriorated ones.
One of them only holds around 70% like yours & one of them holds around 90%.
The new ones.....they works perfectly.
They holds around 99%.
Remember that lithium batteries deteriorates through time whether you use it or not.

Thanks for your opinion.
Once it also happened that my battery level was showing 50% and in the middle of browsing, my display went black, touch keys working and display is completely black. Even after a couple of restarts and cache wipe from recovery it remained black after booting, while the screen was working properly on the boot and showing samsung logos and all. I assumed there's a voltage problem, but I still was not sure is it a defective battery or system not reading the level of it properly. Never happened before with any of my previous Samsungs.

I've got almost same problem as @ljubimci.
The only problem is that I bought new battery (from samsung shop, 100% original not fake) and it dies even faster then my old one
The bigest drops are when i use high demanding aps, especially camera (4k recording) then it can drop from 60-70% to 0 in "0 minutes". This started to happen to me on MM, so i downgraded to LP (5.1.1) Nothing changed... And at the end i've changed my ROM to stock, unrooted 4.4.4 (ANK4). Problem still existing End the last biggest problem of them all is that i've lost somwhere my receipt, so i can't give samsung my battery back ;-(
I know that to some people changing ROM's help, to some new battery help, and it looks like to me only xda can help Is there a possibilty that new battery is damaged, or maybe there are any kind of fixes?

MarcinMilosz13 said:
I've got almost same problem as @ljubimci.
The only problem is that I bought new battery (from samsung shop, 100% original not fake) and it dies even faster then my old one
The bigest drops are when i use high demanding aps, especially camera (4k recording) then it can drop from 60-70% to 0 in "0 minutes". This started to happen to me on MM, so i downgraded to LP (5.1.1) Nothing changed... And at the end i've changed my ROM to stock, unrooted 4.4.4 (ANK4). Problem still existing End the last biggest problem of them all is that i've lost somwhere my receipt, so i can't give samsung my battery back ;-(
I know that to some people changing ROM's help, to some new battery help, and it looks like to me only xda can help Is there a possibilty that new battery is damaged, or maybe there are any kind of fixes?
Click to expand...
Click to collapse
I think that you bought a faulty battery

Samsung Note 4 N910C battery drain

Hello and Happy New Year to all,
*
I came across an issue with my Note's (N910C) battery today and I would like your opinion on it.
*
A quick background:
*
The phone has never been rooted.
9-10 months ago I downloaded an official firmware (6.0.1) which I flashed via Odin and it began to drain the battery very fast, killing the phone in less than a day.
I got a new battery, but the problem was still there.
Eventually I tried another firmware which worked nicely and consumption returned to normal levels. Since then, I had no problems whatsoever.
Yesterday night I got a notification to update. I had already done another two in the past - if I'm not mistaken - , without noticeable difference.
I did the update overnight and I removed the charging cable in the morning. It seemed that it was a little warmer than usual, but I did not pay attention.
The battery percentage was reducing at the rate of 1% per minute and it died within 2 hours.
I checked battery info, nothing abnormal.
I have two questions:
*
1. Does anyone have similar experience with this model (or other)?
2. If I reinstall the previous firmware, normally the problem should be fixed, right? I mean it started after an official update which AFAIK affects native apps only.
*
Thank you in advance

I have noticed on my Note 4, after upgrading to marshmallow, the battery drained like crazy too. It would drain 10-20% when I use it for 20 mins or so. The battery that I'm using is a 'new' one that I bought just about a year ago although the problem still occurred when it was fairly new.
I'm speculating that there might be some sort of battery or software issue with marshmallow as the original battery that came with the phone also had the same issue. It would drain fairly quickly until one day it just stopped working and would boot loop until I plugged it in to the charger.
Ever since marshmallow, I have never seen my battery get to 15% before switching off completely. Sometimes even 45% lol.

mha93 said:
I have noticed on my Note 4, after upgrading to marshmallow, the battery drained like crazy too. It would drain 10-20% when I use it for 20 mins or so. The battery that I'm using is a 'new' one that I bought just about a year ago although the problem still occurred when it was fairly new.
I'm speculating that there might be some sort of battery or software issue with marshmallow as the original battery that came with the phone also had the same issue. It would drain fairly quickly until one day it just stopped working and would boot loop until I plugged it in to the charger.
Ever since marshmallow, I have never seen my battery get to 15% before switching off completely. Sometimes even 45% lol.
Click to expand...
Click to collapse
I had a faulty N910F and got another (used) one and it's had occasional forced closes at between 15-20%. This worries me that it might go the way of the old one where it developed the issues with it freezing and the frequent reboots....does yours exhibit any other issues?

woldranger said:
I had a faulty N910F and got another (used) one and it's had occasional forced closes at between 15-20%. This worries me that it might go the way of the old one where it developed the issues with it freezing and the frequent reboots....does yours exhibit any other issues?
Click to expand...
Click to collapse
Yes. Unfortunately. Currently, it would just die halfway even when I'm at 50%? That's the highest that I've noticed. So I had to charge it up for a bit maybe to 60% and it would be fine before dying around the 20+ - 40% mark. Previously, the original battery that came with the phone had this weird issue where the battery won't hold any charge even when it's fully charged. Like it will go to a bootloop when I've unplugged it even though it's at 100%. When I bought the new, current battery I noticed that it would still die off at 15-20% and the original battery became bloated a few months later.
Are you using any custom roms? The bootloops and freezing could be related to using some custom roms. I changed from a N7 port to a deodexed stock rom and the frequency of the freezing and reboots just plummeted. Reboots only happening when the battery is close to dying.

mha93 said:
Yes. Unfortunately. Currently, it would just die halfway even when I'm at 50%? That's the highest that I've noticed. So I had to charge it up for a bit maybe to 60% and it would be fine before dying around the 20+ - 40% mark. Previously, the original battery that came with the phone had this weird issue where the battery won't hold any charge even when it's fully charged. Like it will go to a bootloop when I've unplugged it even though it's at 100%. When I bought the new, current battery I noticed that it would still die off at 15-20% and the original battery became bloated a few months later.
Are you using any custom roms? The bootloops and freezing could be related to using some custom roms. I changed from a N7 port to a deodexed stock rom and the frequency of the freezing and reboots just plummeted. Reboots only happening when the battery is close to dying.
Click to expand...
Click to collapse
Ah right, so you had only the reboots, nothing else? That's fair enough.
No, it's nothing at all to do with the ROM. I'm stock but LOTS of people have had the same issue. As it stands, the only way to fix it is to get a new mobo :crying:

woldranger said:
Ah right, so you had only the reboots, nothing else? That's fair enough.
No, it's nothing at all to do with the ROM. I'm stock but LOTS of people have had the same issue. As it stands, the only way to fix it is to get a new mobo :crying:
Click to expand...
Click to collapse
Well besides the usual overheating that's related to our snapdragon CPU, nothing much but mostly battery issues.
Although there is thread that I'm following that promises to fix the 15-20% issue. Checking their method to see if it works or not
https://forum.xda-developers.com/note-4/general/battery-shutdowns-15-20-fix-root-t3513268

leebro83 said:
Hello and Happy New Year to all,
*
I came across an issue with my Note's (N910C) battery today and I would like your opinion on it.
*
A quick background:
*
The phone has never been rooted.
9-10 months ago I downloaded an official firmware (6.0.1) which I flashed via Odin and it began to drain the battery very fast, killing the phone in less than a day.
I got a new battery, but the problem was still there.
Eventually I tried another firmware which worked nicely and consumption returned to normal levels. Since then, I had no problems whatsoever.
Yesterday night I got a notification to update. I had already done another two in the past - if I'm not mistaken - , without noticeable difference.
I did the update overnight and I removed the charging cable in the morning. It seemed that it was a little warmer than usual, but I did not pay attention.
The battery percentage was reducing at the rate of 1% per minute and it died within 2 hours.
I checked battery info, nothing abnormal.
I have two questions:
*
1. Does anyone have similar experience with this model (or other)?
2. If I reinstall the previous firmware, normally the problem should be fixed, right? I mean it started after an official update which AFAIK affects native apps only.
*
Thank you in advance
Click to expand...
Click to collapse
hey can you give me the link of that firmware that improved your battery life

I had a similar problem with fast battery drain - did a factory reset and it's back to normal. Make sure you're using a battery from a reputable source like RavPower (don't think there are any genuine Samsung ones left and Anker stopped making them).

Kinsman-UK said:
I had a similar problem with fast battery drain - did a factory reset and it's back to normal. Make sure you're using a battery from a reputable source like RavPower (don't think there are any genuine Samsung ones left and Anker stopped making them).
Click to expand...
Click to collapse
i have done every thing bought new batteries from different Companies but still my phone dies with in 1.5 to 2 hours please if there is any fix do tell me.

hasanrworld said:
i have done every thing bought new batteries from different Companies but still my phone dies with in 1.5 to 2 hours please if there is any fix do tell me.
Click to expand...
Click to collapse
Try GSAM Battery Monitor:
Free: https://play.google.com/store/apps/details?id=com.gsamlabs.bbm
Pro: https://play.google.com/store/apps/details?id=com.gsamlabs.bbm.pro
Root: https://play.google.com/store/apps/details?id=com.gsamlabs.bbm.rootcompanion
[EDIT: Sorry, Root version is only necessary for KitKat and older devices]
If you're not rooted, you can use the ADB commands to get the enhanced statistics, this is explained in the app. User Guide: http://blogger.gsamlabs.com/2011/11/badass-battery-monitor-users-guide.html
This will help you understand what app or aspect of your device is draining the battery, and also show you when it is using doze, deep sleep etc.

Where's my battery going?! (Phone won't sleep?!)

HELP!!!
I picked up an H918 for my wife to use on T-mobile USA. Since it was used, I also got one of the extended life 4100Mah batteries to hopefully make it last at least the entire day without topping off the charge. She usually averages around 4 - 5 hour SOT, so this seemed like a good option from what I've read, and fits in the original door so I can use the wallet case she wants with it.
But man, her battery life is TERRIBLE! I checked with Accubattery, and it reports that the battery is charging within 99% of it's 4100mah spec, so I don't think its a bad battery. Yet, she can barely go 12 hours with just under 2 hours SOT before the phone dies!
She is unrooted, running stock Oreo.
I installed GSam Battery Monitor and used their ADB commands to give it permission to record deep statistics w/out root (pretty cool, never did that before). I ran it for a little while this morning. Within 3 hours 40 minutes off the charger, she was already down to 72% with barely any SOT. I'm attaching screenshots of the app usage and doze screen (sorry for the phone-snapped-of-phone picture, it's my wifes phone like I said, so it was easier to just snap with my camera than take a screenshot and send it to myself to post).
Maybe I'm not reading this right, but it seems like something is keeping her phone from sleeping. A big culprit seems to be call services, and in my location settings, I noticed it mention that LG IMS was doing a lot of heavy battery drain with location related inquiries.
I thought maybe it was related to WiFi calling, so I turned that off. Cell reception is average.
2 hours later, she's down to 50% so that wasn't it. I don't know what else to try other than hard reset, but we literally just got this and set it up 2 days ago, and its been like this from day one. I don't see why it would be any different the second time around.

It's likely a junk battery. It's really hard to get a good oem replacement battery.
If you shop Amazon look for a Taeozi 4200 or Shemnz 4200. They both have 2 year warranty and decent reviews here on XDA
The Perfine 4100 is also highly recommend
Any Li-polymer should be better
Sent from my ONEPLUS A6010 using Tapatalk

When I bought my wife's phone it had a battery drain/overheat and wakelock issue as well. I fixed it and haven't had an issue since. Here's what I did to fix it:
https://forum.xda-developers.com/v20/help/absolutely-terrible-battery-life-t3531456/post78654160

clsA said:
It's likely a junk battery. It's really hard to get a good oem replacement battery.
If you shop Amazon look for a Taeozi 4200 or Shemnz 4200. They both have 2 year warranty and decent reviews here on XDA
The Perfine 4100 is also highly recommend
Any Li-polymer should be better
Sent from my ONEPLUS A6010 using Tapatalk
Click to expand...
Click to collapse
I did my homework first and got the Perfine from Amazon, not a no-name junk battery. When I couldn't fit it without removing the sticker, the seller was really helpful and actually offered to replace it after checking first that it fit in *THEIR* V20 at the factory. Really solid customer support. And according to Accubattery, it really is the capacity it says. Or at least within 99% of it (I think it estimated 4080 or something like that). So I don't think that's the issue.
pistacios said:
When I bought my wife's phone it had a battery drain/overheat and wakelock issue as well. I fixed it and haven't had an issue since. Here's what I did to fix it:
https://forum.xda-developers.com/v20/help/absolutely-terrible-battery-life-t3531456/post78654160
Click to expand...
Click to collapse
That's actually really interesting- I did take apart the phone to do the thermal mod thing (wiped off the dried up pink gunk and put a thermal pad there), but it seemed pretty clean otherwise inside when I did. How on earth did you figure out that was the problem?
After speaking with some folks on Telegram, Reddit, and other corners of the internet, I have a different theory. A bunch of people told me to let the rom "settle", that battery life is never good after a fresh format or new rom flash. Honestly, the critical thinker in me says that sounds like nonsense. I've never heard of this before and I've been flashing roms for the better half of a decade. I'd think after it takes the time the load up your apps and settings and configure itself, it would be done. But I Googled it, and it seems to be a hotly debated subject.
Those that swear by it claim that whenever you start fresh or flash a new rom, it takes anywhere from one to a few battery cycles before the kernel calms down. Perhaps it is doing some sort of internal calibration based on your battery life and system demands or something like that. The theory seems to be that the Kernel doesn't allow the CPU to fully doze until it is done with this process, which sometimes takes days. I don't know, but the more I read about it, the more it sort of started sound plausible. When I got the phone, I tried out some things on it myself without a SIM card first, just to make sure everything on it checked out before giving it to the wife. Then, I did a hard reset, popped in her SIM card and let it do its thing. That's when we realized battery life was pretty terrible, as after 10-12 hours she already needed to charge... and this was on the 4100mah perfine!
I tried another hard reset, and when that didn't fix it, I decided it was time to root and see if I could get to the bottom of the bad battery. It seemed the kernel was where a lot of it currently went according to battery stat apps. After downgrading my H918 to Nougat so I could install TWRP, I promptly flashed Alpha Omega Oreo 20H and restored her apps. Turns out the next morning we couldn't sync her smartwatch, somehow we broke bluetooth (going into BT settings would crash the phone everytime). So weird, and while we were at it the battery life still wasn't great. So I did a hard reset that evening and found that even with nothing installed, BT was borked. (looking back at it, I think I should have flashed an Oreo rom like the stock 20H rooted first, and THEN the AO rom. I think going straight from nougat might have led to a driver mismatch or something)
Anyway, after that didn't work I flashed the stock rooted 20H rom, and lo and behold bluetooth and everything else is working again! But the battery has been bad all along and is still doing its generally suckiness thing.
BUT... as someone pointed out, if this kernel settle thing is real, I've been pretty much flashing and resetting this thing every other day. If roms need to "settle" first (still a debatable subject), than I never really gave it a chance yet and that's why I'm constantly seeing battery drain from things like Kernel even on different roms! And @pistacios, is it possible that you were having a kernel do the same thing since it was just reset and it just so happened to be that when it calibrated itself you thought you had fixed it by cleaning out the USB port?
All I know is I'm going to give this a couple of days before deciding on a plan B. Seems too simple to be the reason, but hey- I'm desperate.

Dishe said:
I did my homework first and got the Perfine from Amazon, not a no-name junk battery. When I couldn't fit it without removing the sticker, the seller was really helpful and actually offered to replace it after checking first that it fit in *THEIR* V20 at the factory. Really solid customer support. And according to Accubattery, it really is the capacity it says. Or at least within 99% of it (I think it estimated 4080 or something like that). So I don't think that's the issue.
That's actually really interesting- I did take apart the phone to do the thermal mod thing (wiped off the dried up pink gunk and put a thermal pad there), but it seemed pretty clean otherwise inside when I did. How on earth did you figure out that was the problem?
After speaking with some folks on Telegram, Reddit, and other corners of the internet, I have a different theory. A bunch of people told me to let the rom "settle", that battery life is never good after a fresh format or new rom flash. Honestly, the critical thinker in me says that sounds like nonsense. I've never heard of this before and I've been flashing roms for the better half of a decade. I'd think after it takes the time the load up your apps and settings and configure itself, it would be done. But I Googled it, and it seems to be a hotly debated subject.
Those that swear by it claim that whenever you start fresh or flash a new rom, it takes anywhere from one to a few battery cycles before the kernel calms down. Perhaps it is doing some sort of internal calibration based on your battery life and system demands or something like that. The theory seems to be that the Kernel doesn't allow the CPU to fully doze until it is done with this process, which sometimes takes days. I don't know, but the more I read about it, the more it sort of started sound plausible. When I got the phone, I tried out some things on it myself without a SIM card first, just to make sure everything on it checked out before giving it to the wife. Then, I did a hard reset, popped in her SIM card and let it do its thing. That's when we realized battery life was pretty terrible, as after 10-12 hours she already needed to charge... and this was on the 4100mah perfine!
I tried another hard reset, and when that didn't fix it, I decided it was time to root and see if I could get to the bottom of the bad battery. It seemed the kernel was where a lot of it currently went according to battery stat apps. After downgrading my H918 to Nougat so I could install TWRP, I promptly flashed Alpha Omega Oreo 20H and restored her apps. Turns out the next morning we couldn't sync her smartwatch, somehow we broke bluetooth (going into BT settings would crash the phone everytime). So weird, and while we were at it the battery life still wasn't great. So I did a hard reset that evening and found that even with nothing installed, BT was borked. (looking back at it, I think I should have flashed an Oreo rom like the stock 20H rooted first, and THEN the AO rom. I think going straight from nougat might have led to a driver mismatch or something)
Anyway, after that didn't work I flashed the stock rooted 20H rom, and lo and behold bluetooth and everything else is working again! But the battery has been bad all along and is still doing its generally suckiness thing.
BUT... as someone pointed out, if this kernel settle thing is real, I've been pretty much flashing and resetting this thing every other day. If roms need to "settle" first (still a debatable subject), than I never really gave it a chance yet and that's why I'm constantly seeing battery drain from things like Kernel even on different roms! And @pistacios, is it possible that you were having a kernel do the same thing since it was just reset and it just so happened to be that when it calibrated itself you thought you had fixed it by cleaning out the USB port?
All I know is I'm going to give this a couple of days before deciding on a plan B. Seems too simple to be the reason, but hey- I'm desperate.
Click to expand...
Click to collapse
Ive experienced ROMs settling in and battery stabilizing after a few days. But this was pretty far back with the HTC M7 and M8. Most modern phone's I've flashed pretty well settled in within the first few hours. The battery life on this phone was never amazing. It was good to just Ok for most when it was new.
If you flashed the stock rooted rom and still had bad battery life, I still suspect the battery itself. I still recommend one of the battery I listed earlier. If the perfine didn't work out try a different one.
Sent from my ONEPLUS A6010 using Tapatalk

clsA said:
Ive experienced ROMs settling in and battery stabilizing after a few days. But this was pretty far back with the HTC M7 and M8. Most modern phone's I've flashed pretty well settled in within the first few hours. The battery life on this phone was never amazing. It was good to just Ok for most when it was new.
Click to expand...
Click to collapse
Right, with the stock 3200mah battery. With the Perfine 4100, a lot of reports are saying 6-7 hours SOT or at least a full day of regular use. That's good enough, really. Mine is dying at half of that. I'm wondering if I have faulty hardware. I could put the stock battery back in and see if it dies much sooner.
I'm actually wondering if someone can check their mA use per hour with the screen on vs off, and I can see if the numbers make sense on mine. Accubattery is pretty good at the math.

Dishe said:
.....
And @pistacios, is it possible that you were having a kernel do the same thing since it was just reset and it just so happened to be that when it calibrated itself you thought you had fixed it by cleaning out the USB port?
....,
Click to expand...
Click to collapse
Phone was up and running for 2 weeks, so it wasn't due to fresh reset.
GSAM battery monitor showed kennel wakelock, something about USB OTG in the top of the list, so I figured the port was my first check for a problem, and it was. It wasn't obvious that there was dirt or foreign matter in there, because it looked clean. But sure enough, after the light brushing with 94% alcohol, the problem disappeared.
I'm not saying this is definitely your problem, just throwing it out there.