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2150 Battery not charging maybe?

So, my first charge out of this bad baby was glorious. 48 hours, with 50% a day later.
However, the second day (after letting it run out) I seem to be pitiful - way less than previously gained. Like, dropping down as low as 50% only 8 hours into the day. I don't think the battery is charging fully (despite green light). While I may try a bump charge overnight tonight, I was wondering if there was some setting I need to change to tell the phone that it's got a bigger battery before.
I'm running MIUI 12.31 rooted with the stock kernel.
Thanks in advance guys.

Reset battery stats?

PonsAsinorem said:
Reset battery stats?
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Click to collapse
should I do the reset before or after a charge?

snowkfh said:
should I do the reset before or after a charge?
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Click to collapse
Do it after a full charge (including bump). Just realize it will never be perfect because of the battery no charging while its being turned on, booting into fastboot, then recovery.

[Q] Sudden decrease in battery life

Hello guys.
I know you're all tired of people QQing about battery life, but I've yet to find a thread that addresses my issue.
Anyways, I'm running cog 4.2.2, and recently I've seen a drastic decrease in battery life with no change in the way i use my phone, no new apps, and no new roms. I've calibrated my battery about 5 times now, and the same for rebuilding my batterystats.bin. I used to be able to make it through a full day without charging with battery to spare, now it dies sometime in the evening even after bumping the battery charge several times. I charge it every chance I get (between classes, when I'm adding files to it via usb, etc) and it STILL dies. at one point, I observed that my battery dropped 15% in 30 minutes. I used os monitor to check if any apps were running using a lot of cpu, but nothing uses more than about 1% (most things usually show 0%) except the operating system itself, which is at about 7%. Should I just cave and buy a new battery from amazon, or is there something else I can try, short of flashing a different rom?

iamtheculprit said:
Should I just cave and buy a new battery from amazon, or is there something else I can try, short of flashing a different rom?
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Click to collapse
Yes 10 char

maybe your batterystats are ****ed up? i deleted the file once before with sgs tools and then wiped dalvik cache and it for some reason seemed to fix my battery issues, and sped up my system somewhat

Don't bump charge so much. Lithium ion batteries aren't designed to go to 100 so often and over charging can result in decrease longevity of the battery itself. The phone has a feature to prevent over charging. When it's on the charger the second it reaches 100 it will stop charging and let the battery trickle down to 95 or so and starts that cycle over again. Too much bump charging can actually damage the battery.
After deleting the batterystats.bin do you let it go through a few full drain and charge cycles before making a judgement on the battery life?

studacris said:
Don't bump charge so much. Lithium ion batteries aren't designed to go to 100 so often and over charging can result in decrease longevity of the battery itself.
After deleting the batterystats.bin do you let it go through a few full drain and charge cycles before making a judgement on the battery life?
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Click to collapse
I realize that, and I can't make it through the day without charging it. I only charge it when it's at less than 10% though.
Also, I have deleted the batterystats.bin and let it go through a full drain and several charge cycles. It didn't help at all.
Also it's worth noting that today I left it on the charger powered off after it reached 100% while powered on. I left it plugged in for three hours, and it never indicated 100% while powered down. It stayed at about 90% full, more or less.

replacement oem batteries are relatively cheap, cause it sounds like you got a lemon. Sorry man.

studacris said:
Replacement batteries are relatively cheap, sounds like you got a lemon. Sorry man.
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Click to collapse
For 8 bucks, it's worth a shot. The most perplexing thing is that it won't max out while the phone is shut off. Tell-tale sign of effed up battery?

iamtheculprit said:
For 8 bucks, it's worth a shot. The most perplexing thing is that it won't max out while the phone is shut off. Tell-tale sign of effed up battery?
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Click to collapse
Yeah that would raise a big red flag for me.
Try a different rom see if that offers any better battery life, I doubt it but It's completely free to try. Something to mess with while you wait for a replacement. And if it turns out to work then you will have 2 batteries.

simbill said:
maybe your batterystats are ****ed up? i deleted the file once before with sgs tools and then wiped dalvik cache and it for some reason seemed to fix my battery issues, and sped up my system somewhat
Click to expand...
Click to collapse
going to try wiping the dalvik cache before I order the battery. Wiped batterystats.bin while I was at it. Maybe it'll help.

I got about 11-12 hours today, but I did nothing but text really. This is after full charge, deleting dal cache, and deleting batterystats.bin and then restarting. I mean I recieved a few pics but I really didn't do anything on my phone today other than that. That's just pathetic, since before I was getting through a full day (8:30-2am roughly) with battery to spare and I was using it a lot more heavily than I did today.

[Q] Battery never be 100% when i plug-out it

Hello...
When i try to make full my battery (when phone is on or off) and when i see the 100% of battery, battery indicator down few unit instantly! when i disconnect the charge cable...
in otherwords my battery can be full and looks as 100%, but when i disconnect it from the power socket, indicator is donw immediality!
Have you an idea? Thanks!

I have same problem ! Any idea to solved ?
Sent from my GT-I9000 using xda premium

Try the battery calibration app from market if your phone is rooted...

It's more than likely a battery problem,check your chargers and other.

It is perfectly normal and a built in feature to stop overcharging the battery. If it is dropping to say 97-99% you have no problem.

ankaka said:
It's more than likely a battery problem,check your chargers and other.
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Click to collapse
battery calibration works on ICS?

do u still have ur warranty? it might be hardware internal problem?

It is possible to try to make calibration from CWM...

i also got the same problem.. anyone can help?

ColinB63 said:
It is perfectly normal and a built in feature to stop overcharging the battery. If it is dropping to say 97-99% you have no problem.
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Click to collapse
+1
It's a protection made by samsung,
On ICS with some kernels, we can removed this protection with NStools App's

I saw this problem even phone is not boot, so i think this is not a OS problem, maybe kernel?
However i'll try a calibration tool, i waiting for full charge... i'll back
But comments tells "this is normal and this is an protect by Samsung"... so nobody's phone is never don't look as %100 after plug-out? all of them is looks under %100 when plug-out?
Thanks for all comments..

It would seem that all phones charge to roughly 95% then stop. Sometimes the software will then display 100% instead of displaying the true charge of the battery.

After a lot of calibrations (drain & full charge, batterystats reset etc.) still battery indicator down to 98% after plug-out (even looks 100% when plug-in)... still is this normal?

Try battery calibration from market(the phone must be rooted)

shadow60 said:
+1
It's a protection made by samsung,
On ICS with some kernels, we can removed this protection with NStools App's
Click to expand...
Click to collapse
ColinB63 said:
It is perfectly normal and a built in feature to stop overcharging the battery. If it is dropping to say 97-99% you have no problem.
Click to expand...
Click to collapse
The OP should listen to these two fellas - lithium ion batteries should not be charged to 100%, nor depleted to 0% as this can effect battery longevity. The protection level is often ~ 3% away from max.

It's funny that people are happier when they see 100% on their battery, even though if it would really be correct 97% of battery capacity.
Fake 100% or real values?
Sent from my sandwiched SGS

[Q] Weird Issue, phone auto shutdown when the battery is like 5% on Lollipop ?

My XT1092, recently got updated to Lollipop i.e. Android 5.0
Two of my battery runs, starting from 100% full charge came down to like 5% and the phone shut down automatically as if it was 0%
Also on a side note, i did not put any mode on the battery saver mode for those two runs.
Now to test it, i kept my battery saver to start at 5% but i am not sure if it will run at 5% or just shut down
Anyone got an idea/solution for this issue ??
P.S. Even Motorola care chat, does not have an answer, all they said is to keep my phone in safe mode for a day and check it out....

Mine just did this the other day. When I pressed the power button it showed the battery with a little red fill and a huge yellow triangle with an exclamation mark in it. Also happened last night.

I have also had the same issue xt1092 and on lollipop.

well...
yea man, so the thing is motorola support said that, keep ur phone in safe mode for a day and recheck the issue...
so idk... :/
i am checking my battery use and for now i have kept my battery saver on 5% so i hope it starts on battery saver itself.. rather than shutting down...

My XT1095 does the same thing. Really annoying! Its really lying to you about how much battery is left if its going to do that. I just know that if i'm going below 10% i better run to find a charger ASAP!

M3drvr said:
My XT1095 does the same thing. Really annoying! Its really lying to you about how much battery is left if its going to do that. I just know that if i'm going below 10% i better run to find a charger ASAP!
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Click to collapse
it is quite misleading to say the least..
i did not have this issue with KitKat though..
might be a lollipop thing only

I'll join this list. Really annoying, and never happened on 4.4.4

I've never let my battery get that low honestly, but...
Keep in mind that your battery percentage is completely an estimate. Battery capacity is measured in mAh, but there's no way to measure the current charge capacity in mAh of a battery. The only way to do so would be to run all of the power out of the battery and record the power over time, but then you'd have a dead battery. As a result, the system estimates your remaining battery capacity as a percentage based on the current voltage of the battery. But that can be different depending upon how quickly you've drained the battery and other factors.

So, Android has methods built-in which automatically calibrate the battery, but they only work properly if you fully charge and discharge your device on a regular basis. A battery starts off weak, then it gains strength after a few charging cycles, finally over time it peaks and then begins to taper off as far as battery life goes.
You've likely not taken your device to 0% for a while. The android solution is to fully discharge and recharge your battery a few times to allow it to recalibrate. Slow charging is the best for recalibration. Plug it into a computer for 500mAh charging rather than using a charger. Chargers can charge quicker(1.5A) but do not allow the device to calibrate as well due to the high amperage.
So, just use your device and let it drain fully, and charge fully on a computer USB port and it should recalibrate itself.

InspectifierWrectifier said:
So, Android has methods built-in which automatically calibrate the battery, but they only work properly if you fully charge and discharge your device on a regular basis. A battery starts off weak, then it gains strength after a few charging cycles, finally over time it peaks and then begins to taper off as far as battery life goes.
You've likely not taken your device to 0% for a while. The android solution is to fully discharge and recharge your battery a few times to allow it to recalibrate. Slow charging is the best for recalibration. Plug it into a computer for 500mAh charging rather than using a charger. Chargers can charge quicker(1.5A) but do not allow the device to calibrate as well due to the high amperage.
So, just use your device and let it drain fully, and charge fully on a computer USB port and it should recalibrate itself.
Click to expand...
Click to collapse
While it does help the calibration, it's very bad for your battery to do this deep discharge multiple times.

raptir said:
I've never let my battery get that low honestly, but...
Keep in mind that your battery percentage is completely an estimate. Battery capacity is measured in mAh, but there's no way to measure the current charge capacity in mAh of a battery. The only way to do so would be to run all of the power out of the battery and record the power over time, but then you'd have a dead battery. As a result, the system estimates your remaining battery capacity as a percentage based on the current voltage of the battery. But that can be different depending upon how quickly you've drained the battery and other factors.
Click to expand...
Click to collapse
Sometimes you don't have a choice about letting battery drain get that far.
But regardless, its most definitely an issue with lollipop. Uncountable android devices, and this is the first time I've ever experienced this issue. Happens religiously at 5%. So its never happened before on any device I've used, including this moto x pure on KitKat, and it always happens at 5%.
If it were a true calibration issue, one would think it'd happen at different percentages. However I'm certain this is a bug.

qwerty12601 said:
Sometimes you don't have a choice about letting battery drain get that far.
But regardless, its most definitely an issue with lollipop. Uncountable android devices, and this is the first time I've ever experienced this issue. Happens religiously at 5%. So its never happened before on any device I've used, including this moto x pure on KitKat, and it always happens at 5%.
If it were a true calibration issue, one would think it'd happen at different percentages. However I'm certain this is a bug.
Click to expand...
Click to collapse
I understand that you don't always have a choice, I just meant that I have no insight as to the possible bug since I've never experienced it. And to clarify, it's not really a "calibration" issue, it's a matter of there is no way to accurately measure the charge of the battery.
Honestly, Google could have even implemented this intentionally in order to prevent damage to the battery from a deep discharge.

raptir said:
I understand that you don't always have a choice, I just meant that I have no insight as to the possible bug since I've never experienced it. And to clarify, it's not really a "calibration" issue, it's a matter of there is no way to accurately measure the charge of the battery.
Honestly, Google could have even implemented this intentionally in order to prevent damage to the battery from a deep discharge.
Click to expand...
Click to collapse
But android has been completely accurate in the past. Right down to 1 single percent.
And there's no way google implemented this as a safety feature. If they were legitimately trying to do this, they'd just have the battery monitor read less than actual capacity as to not confuse the operator.
As well as they have what they believed to be a big feature, "battery saver" which has the option to activate at 5%. So them killing your phone at 5% intentionally doesn't hold water.

qwerty12601 said:
But android has been completely accurate in the past. Right down to 1 single percent.
And there's no way google implemented this as a safety feature. If they were legitimately trying to do this, they'd just have the battery monitor read less than actual capacity as to not confuse the operator.
As well as they have what they believed to be a big feature, "battery saver" which has the option to activate at 5%. So them killing your phone at 5% intentionally doesn't hold water.
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Click to collapse
No it hasn't. It may not have shut down until after it read 1%, but it has not been accurate because there is no accurate way to measure the current charge of a battery.
http://batteryuniversity.com/learn/article/how_to_measure_state_of_charge
The fact that it consistently shuts down at 5% does seem like a bug, but it's a very odd bug since it seems like there would have to be some code to specifically tell the phone to shut down.

raptir said:
No it hasn't. It may not have shut down until after it read 1%, but it has not been accurate because there is no accurate way to measure the current charge of a battery.
http://batteryuniversity.com/learn/article/how_to_measure_state_of_charge
The fact that it consistently shuts down at 5% does seem like a bug, but it's a very odd bug since it seems like there would have to be some code to specifically tell the phone to shut down.
Click to expand...
Click to collapse
Every android device I've owned, probably 12, including the 3 still in service with me (moto x before lollipop, nexus 7, nexus 4) all have accurate battery meters right down to 1%. Now are they adjusting on the fly and lowering/raising battery percent to accurately match calculations? Probably. But it adjusts to where the battery meter will read down to the very last percent. No surprises.
The whole point of this thread us that some moto x pures are shutting down at 5%. Maybe the battery really is at 0%, maybe its at 5 or 10%, but its a "bug" that the phone is shutting off at 5%. Its rather a flaw in on the fly calculations where its not accurately adjusting at lower percentages, or a software flaw. But it's a bug either way. That's the complaint here.

raptir said:
Honestly, Google could have even implemented this intentionally in order to prevent damage to the battery from a deep discharge.
Click to expand...
Click to collapse
That is was Microsoft did with their Surface tablets, you can change it, I have mine set to power off at 10%

raptir said:
While it does help the calibration, it's very bad for your battery to do this deep discharge multiple times.
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Click to collapse
Wrong. this is the recommended way to use every mobile phone battery. A full charge and discharge is called a cycle, and cycles are how battery lives are rated.

InspectifierWrectifier said:
Wrong. this is the recommended way to use every mobile phone battery. A full charge and discharge is called a cycle, and cycles are how battery lives are rated.
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Click to collapse
Please don't just post "wrong" without anything to back it up.
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Table 2 provides details as to why what I said is correct. A 50% discharge will not degrade to 70% capacity for 3-4x as many cycles as a 100% discharge. That amounts to up to double the useful life of the battery assuming your usage stays the same.

InspectifierWrectifier said:
Wrong. this is the recommended way to use every mobile phone battery. A full charge and discharge is called a cycle, and cycles are how battery lives are rated.
Click to expand...
Click to collapse
Have fun killing your battery very quickly by fully discharging all the time

raptir said:
Please don't just post "wrong" without anything to back it up.
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Table 2 provides details as to why what I said is correct. A 50% discharge will not degrade to 70% capacity for 3-4x as many cycles as a 100% discharge. That amounts to up to double the useful life of the battery assuming your usage stays the same.
Click to expand...
Click to collapse
Mobile device batteries are designed to be "fully" depleted. They are software controlled. You will never discharge a properly controlled battery 100%. This is why your device still has power to turn on and tell you that the battery is too low to turn on.
There are always exceptions to the rule. However, mainstream devices will almost always keep the battery at a safe level.
You cannot use a single chart on all lithium ion batteries. In fact, every one is different due to chemical and annode/cathode changes. This is why every battery has its own MDS for shipping purposes.
The small changes to batteries cause them to react differently to different usage patterns. When designing a battery these reaction patterns are supposed to be accounted for in the battery calibration.
A key engineering principal: a device should never be capable of destroying itself. Full discharge is normal operation for most devices.

Question Battery drain issues

Hi guys,
I keep having weird battery behaviour which led me to believe, that the battery is not properly calibrated:
When charged to 100%, the phone usually stays at 100% for a few hours depending on usage. Around 40% however it keeps dropping 1% every 2-3 seconds until after a few minutes it is drained completely and switches off.
Did anyone else notice that kind of behaviour? (Some guys on Reddit are facing the same issues)
And does anyone know a fix except waiting for a custom rom?
Thanks and all the best.
Jay

Mr. Jay Milestone said:
Hi guys,
I keep having weird battery behaviour which led me to believe, that the battery is not properly calibrated:
When charged to 100%, the phone usually stays at 100% for a few hours depending on usage. Around 40% however it keeps dropping 1% every 2-3 seconds until after a few minutes it is drained completely and switches off.
Did anyone else notice that kind of behaviour? (Some guys on Reddit are facing the same issues)
And does anyone know a fix except waiting for a custom rom?
Thanks and all the best.
Jay
Click to expand...
Click to collapse
Same here, I didn't notice the battery after 40% but the phone stays at 100% for a really long time, I played Honkai Impact at max setting and it still manages to stay at 100% for an hour, mb it's software issue, I'm on 12.5.7 Global btw.

I didn't experienced that kind of issue. 12.5.13.0 EEA here.

you have to calibrate the battery.
- discharge the battery until the phone turns off
- with a slow charger (10 / 25w) charge the mobile OFF
- once it reaches 100% (1-2 hrs) wait another 2 hours.
- Power up and test.
This method usually solves this problem, it is important to use a slow charger and only use the 120w one when it is really necessary. It seems that some batteries have not been properly calibrated

austick said:
you have to calibrate the battery.
- discharge the battery until the phone turns off
- with a slow charger (10 / 25w) charge the mobile OFF
- once it reaches 100% (1-2 hrs) wait another 2 hours.
- Power up and test.
This method usually solves this problem, it is important to use a slow charger and only use the 120w one when it is really necessary. It seems that some batteries have not been properly calibrated
Click to expand...
Click to collapse
Thanks, I'll try to do that with a slow charger.
After it reached 100% still keep the phone on charge for the next two hours or just wait two hours to power up?

Mr. Jay Milestone said:
Thanks, I'll try to do that with a slow charger.
After it reached 100% still keep the phone on charge for the next two hours or just wait two hours to power up?
Click to expand...
Click to collapse
Still keep the phone on charge min 2 hours or more (ex. When you sleep) next you can turn on

austick said:
you have to calibrate the battery.
- discharge the battery until the phone turns off
- with a slow charger (10 / 25w) charge the mobile OFF
- once it reaches 100% (1-2 hrs) wait another 2 hours.
- Power up and test.
This method usually solves this problem, it is important to use a slow charger and only use the 120w one when it is really necessary. It seems that some batteries have not been properly calibrated
Click to expand...
Click to collapse
It does fix something, now my phone can stay till 1% without turning at 3% like before, thanks.

sushuguru said:
It does fix something, now my phone can stay till 1% without turning at 3% like before, thanks.
Click to expand...
Click to collapse
For me viper4android it's much better if you use wired headphones. I tried to use Dolby but it's not the same.

I'm on 12.5.13.0 EEA, same problem. Phone stay at 100% for hours, then when power dropped to 35-30% weird thing happened, it keeps dropping 1% every 2-3 seconds until after a few minutes it is drained completely and switches off.
Then it takes 5-10 minutes to start again
I will try to calibrate the battery tonight

Hi, I was facing a similar issue.
I have used 3 chargers. 120W (stock), 10W (samsung), 65W (Anker). I was worried about my battery life, so decided to ditch the 120W charger which was also not giving me a good enough battery life, considering its a 5000 mah phone.
Im not paid by anker or something, but I saw a major difference between SOT compared with stock and samsung charger as well. I dont know why this is working out so well, but im getting 7+Hrs SOT easily, on heavy usage. AndI have been getting consistent results from the past week since i switched to anker. I genuinely dont know why or how this is working. But if it works, it works.
Im assuming due to the 120W quick charge, the battery calibration gets messed up. But idk how to explain the longer duration of SOT on the anker charger.
Ps. I dont use 5G

nousernamesorry said:
Hi, I was facing a similar issue.
I have used 3 chargers. 120W (stock), 10W (samsung), 65W (Anker). I was worried about my battery life, so decided to ditch the 120W charger which was also not giving me a good enough battery life, considering its a 5000 mah phone.
Im not paid by anker or something, but I saw a major difference between SOT compared with stock and samsung charger as well. I dont know why this is working out so well, but im getting 7+Hrs SOT easily, on heavy usage. AndI have been getting consistent results from the past week since i switched to anker. I genuinely dont know why or how this is working. But if it works, it works.
Im assuming due to the 120W quick charge, the battery calibration gets messed up. But idk how to explain the longer duration of SOT on the anker charger.
Ps. I dont use 5G
Click to expand...
Click to collapse
yes, I don't think you are very far from the problem. I also think that charging the mobile at 120w spoils the calibration of the battery so I use it only at specific times. I use a standard 15w charger (approx 2hrs)

3 days later It looks like calibration sorted my issues. Now battery behaves as is should.
So calibration is very recommended if battery plays up

I recently purchased this cell phone, and I am experiencing this problem. I have disabled almost everything, and uninstalled blotware. Should I calibrate the battery to improve battery drain?

Vixito said:
I recently purchased this cell phone, and I am experiencing this problem. I have disabled almost everything, and uninstalled blotware. Should I calibrate the battery to improve battery drain?
Click to expand...
Click to collapse
Please read my reply in this thread, that will extend the battery drastically.

im facing this problem with this phone as well but also something else: after the battery drops to 18-20% it then discharges very very quickly to a point where in a matter of 5-10 minutes of use it's down to 0%. is this normal or is it another one of those side effects that their trashy fraudulent scamming xiaomi battery measurement causes?
will another rom fix these issues or are we stuck with them in this phone i rapidly regret getting?

I'm also facing the same issue, below 25% to 0% it drains like a liquid, I attached the screen record

jamesking005 said:
I'm also facing the same issue, below 25% to 0% it drains like a liquid, I attached the screen record
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Click to collapse
mine got fixed (at least for now) by calibrating the battery (leave it to discharge and turn off - try to turn on again until it wont - charge to 100% with phone off) i'll see how long this lasts and update

Ya i did it for now it is fixed might be a temporary fix. I'll post here if it happens again

Same problem at first month, 100 - 99 became shorter and shorter while charging cycle increasing.