Database Users

[Q] Calibration

How can I calibrate my battery?

Ninjus said:
How can I calibrate my battery?
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Click to collapse
The battery calibrates itself bro, calibration apps do close to nothing.

gee2012 said:
The battery calibrates itself bro, calibration apps do close to nothing.
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Click to collapse
I saw someone posted that you need to drain your battery then charge it again fully atleast once a month. Is this information true?

Ninjus said:
I saw someone posted that you need to drain your battery then charge it again fully atleast once a month. Is this information true?
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Click to collapse
Not as far as i know.

"Calibraing" your battery is not going to make it last any longer. If anything, it shortens battery life and serviceable lifespan.
Sent from my SCH-I545 using Tapatalk 4

Ninjus said:
I saw someone posted that you need to drain your battery then charge it again fully atleast once a month. Is this information true?
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Click to collapse
Not quite. Remember that each and every time you do that, it unduely stresses the cells resulting in oxidation. Each and every time you do that, you shorten both the battery's operating time as well as its serviceable lifespan.
"Calibrating" the battery will not change how long the battery lasts.
Sent from my SCH-I545 using Tapatalk 4

najaboy said:
Not quite. Remember that each and every time you do that, it unduely stresses the cells resulting in oxidation. Each and every time you do that, you shorten both the battery's operating time as well as its serviceable lifespan.
"Calibrating" the battery will not change how long the battery lasts.
Sent from my SCH-I545 using Tapatalk 4
Click to expand...
Click to collapse
I just came across it from the apple battery care html wherein it is stated "For proper maintenance of a lithium-based battery, it’s important to keep the electrons in it moving occasionally. Be sure to go through at least one charge cycle per month (charging the battery to 100% and then completely running it down).". So I got curious about it cause at first I also knew that draining the battery would have negative effect on it. BTW thanks for the replying bro.

Battery life

First charge brightness set at 50%
What is everyone else getting

bbh4r4l said:
First charge brightness set at 50%
What is everyone else getting
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Click to collapse
That looks pretty damn good.
I was just about to post a thread. Something is draining my battery life and causing Android System to be the highest battery usage. Check out below.

DrexelDragon said:
That looks pretty damn good.
I was just about to post a thread. Something is draining my battery life and causing Android System to be the highest battery usage. Check out below.
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Click to collapse
Can you repost your pictures? They don't seem to be working.

m3lover1 said:
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What is your brightness set at

bbh4r4l said:
What is your brightness set at
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Auto brightness.

Not to jack your thread.
But I used my iphone at work to watch videos, ect while there is downtime. I usually watch while it's also on the charger
For the Note series, does anyone know if that "kills" my battery for long term?
I know you can replace battery, but just wondering for future use.
Thanks.

Issue with battery drain due to android system is real
All three people I know that just got the Note 4 were experiencing the same issue I had with excess battery drain with the always generic "android system" taking more battery than anything else including the screen.
I downloaded an app called "System Tuner" and looked the CPU% for Android system and it was a constant 3-4% when the phone was otherwise idle.
I found a post at http://support.t-mobile.com/thread/80459 where they were experiencing the same issue (lose around 12% battery an hour with android system taking a huge chunk of battery). The person from that post was able to address the issue by turning location off, rebooting, turning location on, and rebooting again. After I did this I saw Android system idle at ~0.6% - 1.1% instead. So far I'm getting much better battery life but I'll need to give it some time to know for sure.
Hope this helps!

mine took about 2 full days for everything to finish syncing, downloading, indexing, etc. I had books, news articles, pinned music from google play, etc.
Once that happened, everything is now "normalized" and I'm getting better battery life than I was with the note 3.

Juk3s said:
Not to jack your thread.
But I used my iphone at work to watch videos, ect while there is downtime. I usually watch while it's also on the charger
For the Note series, does anyone know if that "kills" my battery for long term?
I know you can replace battery, but just wondering for future use.
Thanks.
Click to expand...
Click to collapse
Short answer: Maybe, it depends on how you are doing it. Using it while it is charging is not necessarily bad but watching videos and keeping it plugged in while the cell voltage is pegged at 100% will likely deteriorate your battery faster.
Long answer + tips:
Lithium ion batteries are great - they are light, can be made very thin and have excellent energy density but they are also very finiky.
Things to avoid doing with a lithium ion battery
-Charging to 100%, leaving it plugged in overnight is a poor practice(high cell voltages reduce the service life*, stopping the charge at 90%[4.10v] can double the service life, stopping the charge at 80%[4.00v] can quadruple the service life.*)
- Discharging the battery to below ~20% (Li-Ion batteries are somewhat sensitive to deep discharges)
-Charging/exposing Li-Ion to elevated temps or below freezing.
*service life is defined by when a battery can only retain 70% of its rated capacity. Most consumer batteries used in mobile devices have a service life of 500 charge discharge cycles.
It is not uncommon for batteries to lose 30% capacity in 1.5 years or less. Changing your charging and handling habits can double or quadruple a batteries life span.

DrexelDragon said:
That looks pretty damn good.
I was just about to post a thread. Something is draining my battery life and causing Android System to be the highest battery usage. Check out below.
Click to expand...
Click to collapse
LOL your picture took up have my damn screen on my 1080p laptop with 15.7 in screen. It was crystal clear too.

On my 2nd charge, auto brightness. Pretty freakin' amazing battery life....
15.5 hours off the charger with 8+ screen on time!

I got awful battery life on the first charge cycle. It drained 50% overnight. 2nd charge has lasted amazingly long and I still have 64% after 12hrs of average use.

First charge. Battery life has been phenomenal. Brightness on auto.

Did u use any power saving features to achieve that time?
Did u use any power saving features to achieve that time?

Definitely improve battery with recent update and I'm a power user

After the latest update

I dont know why but my phone goes from 100-90 in less than a hr with minimal use while the screen is set at auto, also in the leaving it unplugged in the night the battery also drains like 5 points.

I've been at full brightness and using the hell out of it non stop so far, and I'm at 35% with screen on time at 3hrs 40 min.
No update
Sent from my SM-N910T using XDA Free mobile app

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
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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.
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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
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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!
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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!!

Battery capacity less than it should

Hey all,
2 days ago, I got my Op5. Very happy with the phone, except for one thing : accubattery says that the capacity is just beneath 3100mah, instead of the 3300mah it should have. I let it run down and charged it to 100% and kept it on the charger for about one hour after that, still around 3100mah, according to accubattery.
How are your batteries? I'd like to know if this is a widespread issue.

How do you know that accubattery is correct?
Alan

Same here, but even lower. After 42 cycles is around 3000 mAh.
alan sh said:
How do you know that accubattery is correct?
Alan
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Click to collapse
Well, since it is measuring the amount of current going in the actual battery, after some cycles you can assume with quite confidence the actual battery capacity. Besides, it will actually plot the measurement, so you can actually see if the data makes sense.
I'm curios also about the actual capacity, because this would be an indicator of why I have seen so much variation about the battery life on different handsets.

Man, I really don't care. Best battery life ever! (I came from OP3 and OP2 before that)

Rodomar705 said:
Same here, but even lower. After 42 cycles is around 3000 mAh.
Well, since it is measuring the amount of current going in the actual battery, after some cycles you can assume with quite confidence the actual battery capacity. Besides, it will actually plot the measurement, so you can actually see if the data makes sense.
I'm curios also about the actual capacity, because this would be an indicator of why I have seen so much variation about the battery life on different handsets.
Click to expand...
Click to collapse
This app shows significantly lower capacity in almost all phones. To determine capacity you have to discharge battery completely (which is not 0% reported by system) and charge it with precise measurements (5 seconds sampling rate like Accubattery isn't enough). This app is like cancer. This is fourth thread in last two weeks about this **** app. Only things it does well is reporting false data gathered by pseudoscience method and drain battery by wakelocks. Do you need to mess up with battery stats? Get Google battery historian.

davfiala said:
This app shows significantly lower capacity in almost all phones. To determine capacity you have to discharge battery completely (which is not 0% reported by system) and charge it with precise measurements (5 seconds sampling rate like Accubattery isn't enough). This app is like cancer. This is fourth thread in last two weeks about this **** app. Only things it does well is reporting false data gathered by pseudoscience method and drain battery by wakelocks. Do you need to mess up with battery stats? Get Google battery historian.
Click to expand...
Click to collapse
So, how some users like the one above achieve 8h SOT while others like myself neither 5. I'm even never play games almost, which is typical a drain source on phones.
Inviato dal mio iPad utilizzando Tapatalk

Rodomar705 said:
So, how some users like the one above achieve 8h SOT while others like myself neither 5. I'm even never play games almost, which is typical a drain source on phones.
Inviato dal mio iPad utilizzando Tapatalk
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Click to collapse
There is no typical drain source. Everone has different apps installed, different usage, different settings... etc. I can achieve 8h SOT or 2h SOT too. Do you really think, that 10% of reported battery capacity loss would make 60% higher difference in SOT?

davfiala said:
This app shows significantly lower capacity in almost all phones. To determine capacity you have to discharge battery completely (which is not 0% reported by system) and charge it with precise measurements (5 seconds sampling rate like Accubattery isn't enough). This app is like cancer. This is fourth thread in last two weeks about this **** app. Only things it does well is reporting false data gathered by pseudoscience method and drain battery by wakelocks. Do you need to mess up with battery stats? Get Google battery historian.
Click to expand...
Click to collapse
Thanks, I didn't know this app is that unreliable.

Cell battery sucking too fast

I have my Axon 7 a few weeks ago, and I have noticed the cell battery draining very fast, I used the lineage 14.1 and the battery lasted much longer, but at the price of the features, like the dolby atmos, I went back to the b10 stock. the A2017G), I use the smart battery mode, and anyway nothing, would have any solution for this? Some configuration or something.
Thank you

SevenWes said:
I have my Axon 7 a few weeks ago, and I have noticed the cell battery draining very fast, I used the lineage 14.1 and the battery lasted much longer, but at the price of the features, like the dolby atmos, I went back to the b10 stock. the A2017G), I use the smart battery mode, and anyway nothing, would have any solution for this? Some configuration or something.
Thank you
Click to expand...
Click to collapse
you could have installed dolby atmos on lineage and be done with it :silly:

I use 2 things on my Axon 7 G, stock Rom Nougat B10.
1) I have activated most of economy in the system of energy in settings.
2l I use Hibernation Manager
https://play.google.com/store/apps/details?id=com.root.battery.saver.sleep.hibernation
I've got plenty of apps and my SOT is between 5/6 hours with a medium/heavy use. I haven't almost any loss when the screen is off.
Envoyé de mon ZTE A2017G en utilisant Tapatalk

SevenWes said:
I have my Axon 7 a few weeks ago, and I have noticed the cell battery draining very fast, I used the lineage 14.1 and the battery lasted much longer, but at the price of the features, like the dolby atmos, I went back to the b10 stock. the A2017G), I use the smart battery mode, and anyway nothing, would have any solution for this? Some configuration or something.
Thank you
Click to expand...
Click to collapse
Did you buy the phone new ?

i have the same issue, bought this phone 5 months ago
i have tried accubattery pro version and in it it shows "estimated capacity at 1647mAh"
after unplugging it goes down very fast (1% every 2-3 minutes) even when screen is off
i am on slim5 version and using jojoc tweak

Wrong answer.

nauman284 said:
i have the same issue, bought this phone 5 months ago
i have tried accubattery pro version and in it it shows "estimated capacity at 1647mAh"
after unplugging it goes down very fast (1% every 2-3 minutes) even when screen is off
i am on slim5 version and using jojoc tweak
Click to expand...
Click to collapse
if you will change the battery, could you try the 3600 mAh replacement and tell me afterwards? I need to know if it's good before i buy it, because i can only grt it at about double or triple of its price

nauman284 said:
i have the same issue, bought this phone 5 months ago
i have tried accubattery pro version and in it it shows "estimated capacity at 1647mAh"
after unplugging it goes down very fast (1% every 2-3 minutes) even when screen is off
i am on slim5 version and using jojoc tweak
Click to expand...
Click to collapse
Accubattery showed my Axon I bought used at 1821 mAh. I changed out the battery and now it reads 2983 mAh , or 95% of the 3140 capacity. The rate of drop is relative to total capacity. Seems like the power cells in this model do not have a real long life span, maybe because of Quick charging ? IDK .

patio54 said:
Accubattery showed my Axon I bought used at 1821 mAh. I changed out the battery and now it reads 2983 mAh , or 95% of the 3140 capacity. The rate of drop is relative to total capacity. Seems like the power cells in this model do not have a real long life span, maybe because of Quick charging ? IDK .
Click to expand...
Click to collapse
The lifespan is not the problem, your (both of you) batteries may have had a factory defect. My battery was used and abused in the worst way possible (Always quick charge, charge to 100% overnight from about 10 to 30%, rinse, repeat for about a year and a month. Result: about 2300 mAh. I'd say it's pretty good huh? ?

You can try using a USB mAh meter to confirm the readings. It measures how much electricity was actually sent to your phone during charge instead of what the phone hardware reports to a software app. I used it on everything from phones to digital cameras to AA batteries to check their true capacity.

alvinlwh said:
You can try using a USB mAh meter to confirm the readings. It measures how much electricity was actually sent to your phone during charge instead of what the phone hardware reports to a software app. I used it on everything from phones to digital cameras to AA batteries to check their true capacity.
Click to expand...
Click to collapse
i don't believe you need to check, since it actually reports around 3100 mAh with a new battery. That is pretty damn accurate.

Choose an username... said:
The lifespan is not the problem, your (both of you) batteries may have had a factory defect. My battery was used and abused in the worst way possible (Always quick charge, charge to 100% overnight from about 10 to 30%, rinse, repeat for about year and a month. Result: about 2300 mAh. I'd say it's pretty good huh?
Click to expand...
Click to collapse
That's about 25% loss in capacity in a year... not that great, 2300 mAh doesn't last awfully long powering the Axon. I bought my girlfriend a new ZTE Warp 7 over 2 years ago that has a 3000 mAh removable battery and a SD410 and the cell in it is has only lost 11% in those two years. It's a mystery to me as to whether it's quality control or multiple suppliers or some other factor , but it seems like there could be some inconsistencies in their batteries.

patio54 said:
That's about 25% loss in capacity in a year... not that great, 2300 mAh doesn't last awfully long powering the Axon. I bought my girlfriend a new ZTE Warp 7 over 2 years ago that has a 3000 mAh removable battery and a SD410 and the cell in it is has only lost 11% in those two years. It's a mystery to me as to whether it's quality control or multiple suppliers or some other factor , but it seems like there could be some inconsistencies in their batteries.
Click to expand...
Click to collapse
I think 25% is perfectly normal for a year of quick charge and leaving it overnight. Just think that an sd410 probably consumes far less than the 820. I've found my phone using north of 2.5A sometimes
But yeah, yours had a manufacturing problem maybe

Axon 7 was made with poor batter life. Dont listen to reviews. I used this phone and battery life even with no gsm and minimal usage was no longer than 6-7 hours. I tried to close all apps and turn all power hingry settings. Phone is amazing, but bot battery.
Išsiųsta naudojantis 6045Y Tapatalk 4 Lt

With a light usage, I hold almost 1.5 days with a 15 months old smartphone.
It's obvious that if you play heavily you have only few hours of battery. As almost smartphones...
Envoyé de mon ZTE A2017G en utilisant Tapatalk

vulcano11 said:
Axon 7 was made with poor batter life. Dont listen to reviews. I used this phone and battery life even with no gsm and minimal usage was no longer than 6-7 hours. I tried to close all apps and turn all power hingry settings. Phone is amazing, but bot battery.
Išsiųsta naudojantis 6045Y Tapatalk 4 Lt
Click to expand...
Click to collapse
nope. i had 8 hours of SOT when the phone had about 4 or 5 months.
Try Accubattery, it tells you your battery capacity. In my case it degraded badly over the course of a year and a couple months, up to 2300 mAh. Now I get about 3:30 to 4 hours of SOT with AEX Oreo and Swift Black theme

same problem with my AXON, SOT aboout +- 3hours, so what do you think about battery replacement? Tried someone?

https://www.youtube.com/watch?v=wqivSM0NFsc
https://www.youtube.com/watch?v=s1uFZHSWU4c

kraljan66 said:
same problem with my AXON, SOT aboout +- 3hours, so what do you think about battery replacement? Tried someone?
Click to expand...
Click to collapse
of course, many people did. you just buy one and pop it right in, and it gets to 5h sot without any changes. Someone at the Hellsgate thread reported 7h30 SOT with 25% left just by using a specific governor. You just need to have a good battery.
Again, try Accubattery and see how much capacity your batt holds

estimate capacity is 2281mAh...so...can you recomend which type of battery ebay/ali I can buy?