Strange battery percentage behavior - ZTE Axon 7 Questions & Answers

For my Axon 7, I find the battery indicator behave strangely in two situations.
After charging the phone for some time and unplugging the cable, the first 1% of the battery last for a very long time (compared to other marginal battery depletion). The battery doesn't have to be at 100% for this thing to kick in.
And when the battery is at around 15%, 10%, the battery power drops at a higher rate. I've noticed this behavior two or three times when my phone was low on battery.
I first noticed this a few months ago, back when I was still using ZTE stock rom, locked and unrooted. And now that I have custom kernel and everything, the battery indicator still behaves like this.
Anyone has the same issue with your phone or is this normal?

normal, its just how phone calculates how much battery it had "eaten"

Hi, could you tell your phone's model number and IMEI? I guess I have the same problem, so want to know we have the same model.

William Guo said:
Hi, could you tell your phone's model number and IMEI? I guess I have the same problem, so want to know we have the same model.
Click to expand...
Click to collapse
An IMEI is not something you ask for!

2 days ago, I had also a strange happening with my battery indicator. I was working in a medical center, so I had to switch off my Axon 7 completely. The indicator was around 96 %.
2 hours later when I switched it on, the battery indicate 68%.
So, once back to home, I've pushed the charge to 100%, switched off and on again and since I have no trouble with it.
I don't know if it's a piece of bad luck but we seem have the problem in the same period of time... Or my phone catch a virus in the medical center.
My phone is G model, stock Rom, android 7.1.1 B06.
Envoyé de mon ZTE A2017G en utilisant Tapatalk

JLLE said:
2 days ago, I had also a strange happening with my battery indicator. I was working in a medical center, so I had to switch off my Axon 7 completely. The indicator was around 96 %.
2 hours later when I switched it on, the battery indicate 68%.
So, once back to home, I've pushed the charge to 100%, switched off and on again and since I have no trouble with it.
I don't know if it's a piece of bad luck but we seem have the problem in the same period of time... Or my phone catch a virus in the medical center.
My phone is G model, stock Rom, android 7.1.1 B06.
Envoyé de mon ZTE A2017G en utilisant Tapatalk
Click to expand...
Click to collapse
Becouse of B06 update. Every Axon 7 will have strange battery metering method, idk why.

thom168as said:
For my Axon 7, I find the battery indicator behave strangely in two situations.
After charging the phone for some time and unplugging the cable, the first 1% of the battery last for a very long time (compared to other marginal battery depletion). The battery doesn't have to be at 100% for this thing to kick in.
And when the battery is at around 15%, 10%, the battery power drops at a higher rate. I've noticed this behavior two or three times when my phone was low on battery.
I first noticed this a few months ago, back when I was still using ZTE stock rom, locked and unrooted. And now that I have custom kernel and everything, the battery indicator still behaves like this.
Anyone has the same issue with your phone or is this normal?
Click to expand...
Click to collapse
I have experienced your first issue and I think it's normal for this phone. And for your second issue, I don't know because I don't let my battery goes under 30%.

Related

98% deep sleep but 48% battery drain? What gives!

I charged my phone for a little bit last night because it was a little low (48%). I took it off at about 77%. I don't understand what happened. Why did it just drop like a rock? Phone is AT&T LG g2, stock 4.2.2 rooted.
Jesus that can't be good.
I have no clue about this one; it's just too weird.
I'd probably let it fully deplete and then completely charge it and see if it ever does it again.
joeyvanhummel said:
Jesus that can't be good.
I have no clue about this one; it's just too weird.
I'd probably let it fully deplete and then completely charge it and see if it ever does it again.
Click to expand...
Click to collapse
That's what I'm going to do. Unfortunately this is not the first time it has happened. This happened about 2 weeks ago, but then my GSAM showed a HUGE signal decrease at the same time my battery drained, so I figured it was just that.
This time I just do not understand. I've had this phone since August or September and it's been great until this randomly started happening in the past couple weeks.
ksc6000 said:
That's what I'm going to do. Unfortunately this is not the first time it has happened. This happened about 2 weeks ago, but then my GSAM showed a HUGE signal decrease at the same time my battery drained, so I figured it was just that.
This time I just do not understand. I've had this phone since August or September and it's been great until this randomly started happening in the past couple weeks.
Click to expand...
Click to collapse
Well it says 66% of that was phone radio signal. So that is the problem 90%. I had similat problem only it was while charging, so my phone wasnt charging almost at all, when i restarted it was charging fine (from 20% to 100% in 90 min) . What happened when u picked it up, was it still doing that? Or maybe its a some kind of cpu loop if that is even possible. Some people was complaining about nexus 5 rapidly discharging with combo of some lite apps (news readers).
5ch said:
Well it says 66% of that was phone radio signal. So that is the problem 90%. I had similat problem only it was while charging, so my phone wasnt charging almost at all, when i restarted it was charging fine (from 20% to 100% in 90 min) . What happened when u picked it up, was it still doing that? Or maybe its a some kind of cpu loop if that is even possible. Some people was complaining about nexus 5 rapidly discharging with combo of some lite apps (news readers).
Click to expand...
Click to collapse
Yes even after picking it up, the drain continued. I've let it die and am charging the phone while it's off but I don't know if the problem will be fixed.
The youtube app was causing a major battery drain for me a few days ago,now I close it after using it just in case . I'm in the habit of checking the phone's temperature at all times :/
it has a great battery life, especially sceen on time, but the standby isn't top notch at all, I think it's poor software optimization on LG's end, I hope 4.4.2 fixes it.
charge till full. then reboot and check battery percentage.
send from the jungle

Note 4 Battery Problems

Hi everyone!
I got a Note 4 a few days ago and it has battery issues.
I got it second hand online from a guy I don't know. I'm from Romania, I think the phone is from the UK, it's Verizon branded. The model is SM-N910V and the Android version is 6.0.1. It's not rooted. I noticed this V version isn't very common.
The battery that came with it was pretty poor, it would drain in a few hours with minimal usage and the worst problem is the phone would suddenly shut down at about 30-35% battery life. Then it would go into a booting loop, without being able to actually boot until I plugged it in.
I bought a new genuine battery from a popular online store here (F64), battery life is better, but still with just wifi, it went to 50% in about 2 hours of browsing. Without wifi or data (very little), it lasted for a day and a half. But the phone suddenly shut down at 8% battery life, again going into a booting loop, without being able to actually boot until I plugged it in. I'd also like to mention, when the new battery came, it only had 4% battery life left (I heard they should come about half charged, is that true?) and also there were a few reviews from people who had to try multiple batteries from this store until they got lucky with a good one. Both the old and the new batteries look identical, I don't see any signs of counterfeit.
Should I return the battery and try a new one? Is there a chance there's something wrong with the device itself?
Thank you very much!
Common problem.
Sent from my SM-N930F using Tapatalk
a602820922 said:
Common problem.
Sent from my SM-N930F using Tapatalk
Click to expand...
Click to collapse
I noticed that. Any solution?
My real fear is if there's something wrong with the device, because I can't return it.
carabus1206 said:
Hi everyone!
I got a Note 4 a few days ago and it has battery issues.
I got it second hand online from a guy I don't know. I'm from Romania, I think the phone is from the UK, it's Verizon branded. The model is SM-N910V and the Android version is 6.0.1. It's not rooted. I noticed this V version isn't very common.
The battery that came with it was pretty poor, it would drain in a few hours with minimal usage and the worst problem is the phone would suddenly shut down at about 30-35% battery life. Then it would go into a booting loop, without being able to actually boot until I plugged it in.
I bought a new genuine battery from a popular online store here (F64), battery life is better, but still with just wifi, it went to 50% in about 2 hours of browsing. Without wifi or data (very little), it lasted for a day and a half. But the phone suddenly shut down at 8% battery life, again going into a booting loop, without being able to actually boot until I plugged it in. I'd also like to mention, when the new battery came, it only had 4% battery life left (I heard they should come about half charged, is that true?) and also there were a few reviews from people who had to try multiple batteries from this store until they got lucky with a good one. Both the old and the new batteries look identical, I don't see any signs of counterfeit.
Should I return the battery and try a new one? Is there a chance there's something wrong with the device itself?
Thank you very much!
Click to expand...
Click to collapse
Return the battery.
The seller store the battery in a very poor way.
Lithium should be kept at around 40% charged if you store it for a long time (more than 1 month)
I have 5 batteries with me, 3 of them are considered broken (70 - 60% left)
The last 2 are still in very good condition, around 98 - 99%
About your device, you will need around a few days of charge cycle with a good battery.
d4rkkn16ht said:
Return the battery.
The seller store the battery in a very poor way.
Lithium should be kept at around 40% charged if you store it for a long time (more than 1 month)
I have 5 batteries with me, 3 of them are considered broken (70 - 60% left)
The last 2 are still in very good condition, around 98 - 99%
About your device, you will need around a few days of charge cycle with a good battery.
Click to expand...
Click to collapse
Thanks for your answer. I didn't know batteries for this phone are so problematic.
I just charged it to 100% slowly from my PC, will use it normally and see how much the battery lasts and if it shuts down again. As I went through forums, some people say I need to do battery calibration. If it's still bad, I'll return it.
Thanks again!
Try to get a battery direct from Samsung. Failing that buy a PowerBear or Anker. Do a factory reset and calibrate your battery by fully charging it, then running it down to 0% (if it shuts down, keep turning back on until it won't turn on). Then charge fully back to 100% again - DO NOT USE FAST CHARGE.
Kinsman-UK said:
Try to get a battery direct from Samsung. Failing that buy a PowerBear or Anker. Do a factory reset and calibrate your battery by fully charging it, then running it down to 0% (if it shuts down, keep turning back on until it won't turn on). Then charge fully back to 100% again - DO NOT USE FAST CHARGE.
Click to expand...
Click to collapse
I will look for a store somewhere. I don't think I can find those two brands here.
I did a factory reset when I bought it a few days ago, but that was with the old battery. Will do the factory reset after I drain it to 0% later today.
I don't have a 'fast charge' charger, and I have it disabled in settings.
Thank you for your response!
carabus1206 said:
Thanks for your answer. I didn't know batteries for this phone are so problematic.
I just charged it to 100% slowly from my PC, will use it normally and see how much the battery lasts and if it shuts down again. As I went through forums, some people say I need to do battery calibration. If it's still bad, I'll return it.
Thanks again!
Click to expand...
Click to collapse
carabus1206 said:
I will look for a store somewhere. I don't think I can find those two brands here.
I did a factory reset when I bought it a few days ago, but that was with the old battery. Will do the factory reset after I drain it to 0% later today.
I don't have a 'fast charge' charger, and I have it disabled in settings.
Thank you for your response!
Click to expand...
Click to collapse
What I said before is for all phone that uses Lithium Battery.
Lithium Battery must be kept in a storage at around 40 - 80% charged & must avoid hot places if you don't use it for a long time.
Draining Lithium Battery to 0% will deteriorate the battery faster so it's a big NO.
Calibration is done on the phone not the battery.
Delete "batterystats.bin" to calibrate the battery gauge.
Calibration is useless if the battery is bad (you received it at 0% it means that the storage condition is bad thus the battery is bad.
Charging from PC is a BIG NO as USB port on PC only provide around 500mAh & usually it's unstable.
The charging rate is too low & it could deteriorate the battery faster too.
And the last....I think factory reset doesn't necessary reset the batterystats.bin, so you have to delete it manually if you are rooted or follow this link if you are not rooted.
d4rkkn16ht said:
What I said before is for all phone that uses Lithium Battery.
Lithium Battery must be kept in a storage at around 40 - 80% charged & must avoid hot places if you don't use it for a long time.
Draining Lithium Battery to 0% will deteriorate the battery faster so it's a big NO.
Calibration is done on the phone not the battery.
Delete "batterystats.bin" to calibrate the battery gauge.
Calibration is useless if the battery is bad (you received it at 0% it means that the storage condition is bad thus the battery is bad.
Charging from PC is a BIG NO as USB port on PC only provide around 500mAh & usually it's unstable.
The charging rate is too low & it could deteriorate the battery faster too.
And the last....I think factory reset doesn't necessary reset the batterystats.bin, so you have to delete it manually if you are rooted or follow this link if you are not rooted.
Click to expand...
Click to collapse
Thank you very much! I will reply with updates soon!
I had a similar problems, and I have received my new battery yesterday which has been charged in 51% so I drained it to 1%-0% without unexpected shutting downs, I have charged it again and so far it seems to be ok
Sent from my SM-N930F using Tapatalk
---------- Post added at 03:05 PM ---------- Previous post was at 02:58 PM ----------
d4rkkn16ht said:
Delete "batterystats.bin" to calibrate the battery
Click to expand...
Click to collapse
Can you tell me where it is? In which folder
Sent from my SM-N930F using Tapatalk
carabus1206 said:
Thank you very much! I will reply with updates soon!
Click to expand...
Click to collapse
Hi, I didn't return the new battery after all, I think it 'calibrated' itself after the first charge. Also it goes from 100% to 1% and shuts down properly now.
I did two tests on full battery:
- barely using it, no wifi, data etc, just a few short calls (probably 30 mins of OST) and it lasted almost 6 days
- stress test, wifi and data on, gps with maps and waze on, maximum brightness and and a very long youtube video playing constantly (screen on) and it lasted about 5 hours and 30 mins
In normal use it lasts me about 2 days, but it slightly worries me that if I keep mobile data on all the time it only lasts until the end of the first day.
Would this be considered a good battery life for the Note4?
Thanks to everyone for replying and helping!!

Is my battery degraded ?

Hey guys, How you all doing ?
First of all, I recently got in hands a Nexus 6p! Bought It used (8 months of use), and its perfect, everything os ok.
Then, I rooted It and now i'm using the Android O ROM, with franco kernel.
But, I've been noticed that the battery sometimes drains 2%-3% too quickly. And yesterday my phone shutdown at 18%!
I was experiencing the 2-3% drain on 7.1.2, but not the shutdown.
I dont get that bad SOT, like 3h-4:30 is still a thing for me.
What do you guys think ? Is It bad battery or software related problem ?
Should I consider doing this trick and go back to Android N ? https://www.google.com.br/amp/s/for...-6p/help/nougat-battery-bug-fix-t3559250/amp/
Here is one print from my screen on time and accubattery.
(Sorry for It being in portuguese)
Sygion said:
Here is one print from my screen on time and accubattery. (Sorry for It being in portuguese)
Click to expand...
Click to collapse
First of all, going "back" to anything is not going to help you. Android 8.0 is not the issue, it may be a degraded battery, especially if you are having early shutdowns. Please open the Health page (Saúde) and post it. That is where you will find your estimated battery capacity relative to a new battery. You should have a few full charges before this percentage stabilizes. Try draining it as low as you can go (or when it shuts off), and then let the phone charge fully until Accubattery tells you your phone is fully charged NOT the phone reporting 100%. It's common for the phone to continue charging 45-60 minutes beyond the phone reporting 100% and you need to keep it on the charger until completely full to get an accurate capacity estimate. Hope this helps. Boa sorte!
Okay. I went back to 7.1.2, early shutdowns got resolved, but the 2℅ drain not.
I followed all the steps of the guide I posted, changed governator, etc..
It have seen to got a little better. Will report back after a few days of usage with accubattery health status.
Thanks!

Phone shut down for no reason, battery issues.

Guys I am experiencing a very strange problem with my battery. Starting a few months ago the phone began to drain battery a lot, lasting for about 5 hours depending on the use. That problem only got worse with time and now the phone cannot keep on at all. It shut down even with 85% or more battery. If you plug the charger it will boot and the battery will be about the same it was when it shutdown. Yet the phone won’t stand the boot if it is not plugged in the charger.
I have no idea what went wrong here. Ampere show health as good but clearly there is a problem. I even downgraded the OS to 7.1.1 to check the battery life and it stood the same...
Any suggestions? Sorry if my English is not perfect, it is not my first language.
Known battery issue. Get battery replacement.
Sent from my Nexus 6P using Tapatalk
I got same issue on my Nexus 6p. So now I have only one chiise.... Replace the battery
Just go on eBay and get one no originals available. My first replacement was a dud so if your doing yourself test the battery before you put the back on. You can just put your case temporarily over top. The sellers need good ratings so if you have any issues they will immediately send a replacement.

Sudden shutdown 30%

Ok so my phone is the 2017u, running currently the latest LOS16 but this shutdown has happened on 15.1 unnoficials and official.
Is this battery crapping out on me finally as when I was using my accubattery it reported around 72%.
I have a replacement Cameron Sino to fit but since that in itself could be over a year old (new at least) I don't hold out much hope it's not down to 90% just through age.
Cheers
Jcth1 said:
Ok so my phone is the 2017u, running currently the latest LOS16 but this shutdown has happened on 15.1 unnoficials and official.
Is this battery crapping out on me finally as when I was using my accubattery it reported around 72%.
I have a replacement Cameron Sino to fit but since that in itself could be over a year old (new at least) I don't hold out much hope it's not down to 90% just through age.
Cheers
Click to expand...
Click to collapse
72% should be decent, although not great. Calibrate your battery.
Calibration:
Drain to 0%, boot phone drain to 0% again.
Charge to 100% without booting if possible. Otherwise charge while in TWRP.
Unplug
Boot phone, then charge to 100%, unplug, reboot, charge again to 100%, repeat until you have 100% after a reboot while unplugged.
Drain to 0% without charging.
Boot phone and charge to 100% while booted.
Then reset Accubattery, do two cycles from 100% to 0% then charging to 100% while booted, no partial charging. Then run normal usage for a week, see if it reports anything different. If your capacity is around 2000mah, you might want to consider replacing it.
Cheers and have done that cycle before for calibration. Does flashing ROMs throw out the calibration as generally always seem to bugger up my phone every couple weeks flashing something that breaks it or doesn't work.
Will do it when I refit my new battery. I happy to burn this battery out this side of Xmas as wanting it to donor its board for a battery mod I have planned anyways.
Was just wondering if it's likely to be that my battery is fooked that's all. It seems to shutdown to dfu mode and then when plugged in it automatically reboots and shows 30%.
Jcth1 said:
Cheers and have done that cycle before for calibration. Does flashing ROMs throw out the calibration as generally always seem to bugger up my phone every couple weeks flashing something that breaks it or doesn't work.
Will do it when I refit my new battery. I happy to burn this battery out this side of Xmas as wanting it to donor its board for a battery mod I have planned anyways.
Was just wondering if it's likely to be that my battery is fooked that's all. It seems to shutdown to dfu mode and then when plugged in it automatically reboots and shows 30%.
Click to expand...
Click to collapse
If your phone is going into dfu and the battery issue is occurring afterwards. It might not be the battery. It wouldn't hurt to get on a more stable ROM that doesn't dfu, do the calibration again and retest with Accubattery.
I think LOS16 is stable enough. It seems to be at least.
If the battery is below 50 % then it sometimes dfu's if I ask to much of it when the ambient temperature is cold so the actual phone is cold to touch or if I feel heat of the phone around 10 o'clock of fingerprint scanner.
Typical example of cold shutdown is could be speaking to wife on WhatsApp back in Canada and boom it's gone and won't reboot until I plug it in.
Sometimes when Ive tried to use the camera or do moving files and it's warm wherever I am it will shutdown also.
Jcth1 said:
I think LOS16 is stable enough. It seems to be at least.
If the battery is below 50 % then it sometimes dfu's if I ask to much of it when the ambient temperature is cold so the actual phone is cold to touch or if I feel heat of the phone around 10 o'clock of fingerprint scanner.
Typical example of cold shutdown is could be speaking to wife on WhatsApp back in Canada and boom it's gone and won't reboot until I plug it in.
Sometimes when Ive tried to use the camera or do moving files and it's warm wherever I am it will shutdown also.
Click to expand...
Click to collapse
Well you're not the only one who has reported dfus with the latest Los16 builds. So as I said, you may want to make sure it isn't the ROM first. Try testing your battery out on DotOS 2.5, just to be sure, as there haven't been any dfus reported there. I know this would mean clean flashing and starting fresh for a few days, but you can restore your LOS backup as soon as you find that you still have the battery issue with DotOS.
Honestly though, from your latest description, it sounds to be the battery.
Are you using another kernel, like Schwifty?
I've played about with schwifty 4, 5.4, 5.5, 5.8 and 5.10 but reverted back to LOS 16 kernal for now. When the next stable schwifty comes out I might flash that though I'm feeling again this side of Xmas it's not a problem.
My biggest problem is I am moving back to Toronto next year before the spring and I can't be having my phone dfu'in on me if it's too cold hence my asking now to try to work out whether it's the battery or not.
Is there anything I can run after a shutdown to report stuff like a logcat or something ??
Edit
Also it takes an hour to charge my phone to 100% from about 87% which makes me feel the battery is just done now. Remember the same happening on my old nexus 6p and nexus 5 before that.
And if it does get up to 100 it drops charge quite quickly until about 80% then it seems to normalise after into a reasonable rate of loss depending what I'm doing etc.
The phone in TWRP only charged to 94% and had been there for 20 minutes, basically the time it took for my breakfast to come and to be consumed at my local wetherspoons (Brit reference)
Jcth1 said:
I've played about with schwifty 4, 5.4, 5.5, 5.8 and 5.10 but reverted back to LOS 16 kernal for now. When the next stable schwifty comes out I might flash that though I'm feeling again this side of Xmas it's not a problem.
My biggest problem is I am moving back to Toronto next year before the spring and I can't be having my phone dfu'in on me if it's too cold hence my asking now to try to work out whether it's the battery or not.
Is there anything I can run after a shutdown to report stuff like a logcat or something ??
Edit
Also it takes an hour to charge my phone to 100% from about 87% which makes me feel the battery is just done now. Remember the same happening on my old nexus 6p and nexus 5 before that.
And if it does get up to 100 it drops charge quite quickly until about 80% then it seems to normalise after into a reasonable rate of loss depending what I'm doing etc.
The phone in TWRP only charged to 94% and had been there for 20 minutes, basically the time it took for my breakfast to come and to be consumed at my local wetherspoons (Brit reference)
Click to expand...
Click to collapse
Oh wow, yeah, all indicators of a bad battery. I wish i could recommend a good seller, but the one i bought one from gave me a battery with only 80% health. I got 50% refund back, since they didn't want to do an exchange. Still haven't decided if it's worth getting another one. I'm pretty content with 6 hours sot.
EBeatFLA said:
Oh wow, yeah, all indicators of a bad battery. I wish i could recommend a good seller, but the one i bought one from gave me a battery with only 80% health. I got 50% refund back, since they didn't want to do an exchange. Still haven't decided if it's worth getting another one. I'm pretty content with 6 hours sot.
Click to expand...
Click to collapse
Wish I could get 6hours sot. It's ok. I hope my Cameron Sino for the grand x4 or whatever it is will be fine. I am going to hack my back out soon and use my dead battery board to solder in 2 replacement 3000mah or whatever fits batteries.
My Cameron Sino wasn't expensive and brand new so I hope it's in good shape. Either way 2 new lipos from eBay and a small Dremel will do the job haha
Replaced my battery this week with a Cameron sino new from eBay here in the UK. Massive difference to battery life and now the phone is lasting more akin to what I expect from an 820 powered phone.
I'm running
09/18 los16
Schwifty v5 stable
Gms magisk.
Had a nice flat line last night when I was in bed.
Jcth1 said:
Ok so my phone is the 2017u, running currently the latest LOS16 but this shutdown has happened on 15.1 unnoficials and official.
Is this battery crapping out on me finally as when I was using my accubattery it reported around 72%.
I have a replacement Cameron Sino to fit but since that in itself could be over a year old (new at least) I don't hold out much hope it's not down to 90% just through age.
Cheers
Click to expand...
Click to collapse
i have same problems here so now and then,also happens on older roms.
also weird battery drains and accu % on statusbar.
Some people claimed my battery is downgraded etc,but at this point i think its caused due the burn in display stuff (when your phone is hot and decide to change roms)
i think replacing your battery doesnt solve it

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