Hi,
I just bought a new Realme 9i and I noticed the estimated battery capacity at Accubattery to be lower than it's design capacity (5000 mah) by a respectable amount. I had Accubattery present in the background during multiple charging sessions, but I never found the estimated capacity to be any higher than 4750mah. Currently it's showing 4732mah in the health page.
I did a battery calibration as described here:
https://c.realme.com/in/post-details/1245767882487365632
However, I didn't notice any difference. I have my own assumptions. Well, either this is on purpose to protect the battery from the fast charging (33w), which should've been announced. Or, I just have a faulty unit.
If you can confirm whether you experience the same thing on your device or not, or if you would like to share an educated opinion I will be really grateful. Thanks.
Related
Can you guys download accubattery and check your estimated capacity against design capacity and thus you battery health.
Please attach details of your ROM and the age of your phone.
https://play.google.com/store/apps/details?id=com.digibites.accubattery
3277 mah, beta 9 (stock), bought around Xmas time. Not sure if the mah will change if app is installed for a while and it sees several cycles.
It showed 3250 on new phone
LOL these apps.
xpissio said:
LOL these apps.
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Actually it just compares the percent charged to the change in mAh so it isn't some weird bs like "deleting batterstats.bin will increase battery life". This reading is also shown in settings in MacBooks.
Mine was at 94% estimated capacity the first day i got the phone at its release. Now, it shows 92%.
Unless I am misinterpreting the info from CPU-Z and Widgets, the Note 9 appears to charge the battery beyond 4.2v. Shortening its lifespan by about 50%.
Chart from
https://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Fourth chart on that page.
The Li-ion batteries in most phones I've seen go above 4.2V. Yes this is outside of the norm when it comes to Li-ion batteries but Samsung seems to have battery tech down, they claimed 95% capacity remaining after 2 years of use for the Note 8, so I would assume the Note 9 would do as well or better.
PDAH said:
Unless I am misinterpreting the info from CPU-Z and Widgets, the Note 9 appears to charge the battery beyond 4.2v. Shortening its lifespan by about 50%.
Chart from
https://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Fourth chart on that page.
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Hard to tell, depends on the exact tech/modification of the tech they use in the batteries. It's not that simple to just generalise about standard basic li-ion tech.
After almost 3 years and 764 charge cycles of which less than 5 were fast charging (and those were only between about 40-80%), my Note 9 original battery has almost exactly 3000mAh of capacity left. Not too shabby!
Hello,
i've recently purchased a new Samsung Galaxy Tab S2. It looks like the tablet had been lying in stock for quite some time, as it only had 28% battery left when i powered it up. The first readings from the monitoring app i use (AccuBattery) estimated an effective capacity of around 5600 mAh out of the 5870 mAh design capacity (95% health). After one full charge cycle, i've been doing small cycles as is advised pretty much everywhere when dealing with Li-Ion batteries, never dropping below 20% and never going above 70%. A 50% charge cycle, from 20% to 70%, is worth 10% of a full cycle, according to the app.
Now here's the catch, in just 2 weeks of use, and what must have been 3 cycles' worth of charging tops, the battery health already dropped from 95% to 92%, and is now resting at 5421 mAh estimated capacity. The amount of mAh gained from a 50% charge also reflects this. It's also worth noting that the built in battery indicator shows the same percentages as the app, which would lead me to believe the readings are accurate, or at least that both are either right or wrong.
I find it highly unlikely a barely used battery could lose 3% of its capacity over the span of 2 weeks, so what gives? Could it be the infamous "memory effect" at work, even though Li-Ion batteries are supposed to not be affected by it? Or is the battery bad?
I'd like to shed some light on this topic, as there's a lot of contrasting opinions about it.
I have been using my brand new Tab S8 5G for 8 days or so. I have AccuBattery installed. The estimated battery capacity has been very low from Day 1. Currently I get:
Battery Health 87%
Estimated Capacity 6759mAh
Design Capacity 7760mAh
Based on 31 sessions 1031% charged for 69688mAh
I understand it takes a few days for AccuBattery to function accurately, but I think it's been enough. The design capacity has been automatically measured and already adjusted to a lower value than what Samsung advertise (8000mAh). I've also installed 3C Battery Monitor app, but the estimate is very similar (3718). I have bought 2 other (non-Samsung) android devices in the past few months, but their estimated capacities are much closer than 100%.
Has anyone expericed the same? Or do you think mine is a bad lemon and should be returned? Any insight would be much appreciated! Cheers.
Are you charging to 100% or just 85% (battery save option). If you charge up only to 85% then it is accurate.
Thanks! That's a very good question. I have used the 85% charging limit option for a couple of days but left it off for the majority of time.
But wouldn't it be the same from AccuBattery's point of view if you used the option or not, as the tab tells the app 85% as 85% not as 100%? (or maybe my assumption is wrong).
I have since updated AccuBattery (which cleared all my history!) and started self- recalibrating the app as their website suggests (you go down as low as you can, and start charging until drawing ampere really finishes at over 100%). After a few iterations, hopefully the app will show more accurate info. (Or not, I will just come terms with it!)
https://accubattery.zendesk.com/hc/en-us/articles/213575425-How-to-manually-benchmark-your-battery-health
İ think accubattery calculates with the Design capacity of the device, with the the Option to charge up to only 85% you would have charged up to 6800mah vs. 8000mah 100%. But i could be wrong too
Just not to open another thread. I have a similar situation with my tab s8+. All apps that do something hardware/battery related report the battery to be 9800mah and not the Samsung claimed
10090.
As for now I'm letting sccubattery do its reading, but so far battery life has been ok for a tablet with high end Specifications. On average I get 8 to 9h of SoT on average not very demanding usage.
Yes my S8 has also a considerable difference between Samsung's advertised battery capacity (8000 mah) vs the capacity apps like AccuBattery read (7760 mah). That's probably their way to prevent users from overcharging their devices.
On top of it, I have also found that my tab can go quite a bit after showing 100% charged. Following AccuBattery's re-calibrating (re-benchmarking) method l mentioned earlier, in one charging episode I saw my tab going up to 8700 mah or so until it started showing 0 or negative charging values about 40 mins after it showed 100%. Having overcharged my tab a few times this way, AccuBattery now shows about 100% for battery health. Obviously this isn't a good way to charge your battery in terms of its longevity, but it might help to calibrate your new device with a battery app. When the % reaches 100%, the estimated capacity on AccuBattery is normally much lower, something like 6700 mah, as I initially got. I need to do more tests, but I find the leeway Samsung spare is a bit too much.
Interestingly, I have also found quite a bit of variability in this 'fake 100% battery' setting across different manufacturers (or at least different devices). I am applying the same recalibration process on my Xiaomi Pad 5 Pro and OnePlus 8T. They are both about 9 months old. My OnePlus behaves somewhat similarly with my Tab S8, showing about 10% extra capacity after 100%, whereas my Xiaomi really stops charging when it reaches 100%.
Hey. This is my stats on my S8+. I recommend trying to completely discharge the battery to 0%, charge to 100% and wait until current is 0 mA. Do this min 3 times in row. Then you will get a more accurate reading
Hello all,
I got my self a Find X3 Pro a few months ago and I noticed that Accu Battery Pro and Aida 64 Battery, never reach the min capacity of 4400mah or typical capacity of 4500mah
Is this thing a issue ? Or my battery is degraded from brand new ? Or is this a software incorrect reporting issue ?
Thanks in advance !
Make sure to let it charge for about 7 minutes after it reaches 100%. The phone is not actually fully charged when it reads 100.
See here, after the first charging graph
Oppo Find X3 Pro review
The Oppo Find X3 Pro employs a similar display to the one we enjoyed on the Find X2 Pro. It's a 6.7" LPTO AMOLED screen of 3,216 x 1,440 px resolution or...
www.gsmarena.com
Then check again the meters. If they still read 4200, then you may have a degraded battery.
Also, consider that even if the phone is "new", it may have been produced a long time ago (like a year ago or more), thus suffering from some battery degradation already.
I always make sure I let it charge for about 10 more minutes at 100%. Still between 4000mah - 4200mah it displays.
Recently I replaced the battery for an old Mi 5s Plus and after a few charges (3-4) it will show the correct mah of 3800 (~3792mah)
So, did someone actually have these apps display the correct rating of the battery ?
I will give it a try tomorrow, but my phone is 1.5 years old at this point, so I don't expect to see anywhere near 4500 for sure.
I checked mine, but only 2 cycles it showed 89% The phone is 8 months old.
Thank you for your feedback...
My phone is barely 2-3 months old, should I try for warranty ?
Alex4455 said:
Thank you for your feedback...
My phone is barely 2-3 months old, should I try for warranty ?
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Try to charge slowly to 100% using a 3A cable or less and leave it in charge until Aida64 show complete charged, then check charge counter how much mah show. Normally the counter will be a little less respect to declared capacity, like for hard disk the real capacity is not the full declared capacity. My X3 pro is used and charging to 100% show less of 4000 mah but battery life isn't bad.
18 months old phone, about 84% health (only one measurement though)
VampireHeart said:
Try to charge slowly to 100% using a 3A cable or less and leave it in charge until Aida64 show complete charged, then check charge counter how much mah show. Normally the counter will be a little less respect to declared capacity, like for hard disk the real capacity is not the full declared capacity. My X3 pro is used and charging to 100% show less of 4000 mah but battery life isn't bad.
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I'm sorry to tell you but you are mistaken, my ex Red Magic 3 phone indicated my rated capacity for battery and my recently replaced battery for Mi 5s Plus also indicated 3792 mah out of 3800mah, so I presume the issue comes for a incorrectly stored phone when I purchased it or old batch.
I always charge slow or at 1.8A because I'm never in a hurry, I even charged it at 500mah overnight and it went to just 4115 mah out of min 4400mah
Alex4455 said:
I'm sorry to tell you but you are mistaken, my ex Red Magic 3 phone indicated my rated capacity for battery and my recently replaced battery for Mi 5s Plus also indicated 3792 mah out of 3800mah, so I presume the issue comes for a incorrectly stored phone when I purchased it or old batch.
I always charge slow or at 1.8A because I'm never in a hurry, I even charged it at 500mah overnight and it went to just 4115 mah out of min 4400mah
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No it depend from device to device and also from update cause it change also with kernel version. When I have OnePlus 7 pro always charged slowly bu never reached the full capacity of charger counter, this changed when I tried Oxygen OS 12 India beta, the battery show 4500 in charge counter exactly like the battery capacity. So it can depend from many factors and isn't simply to understand how really battery life is.
Thank you for all of your support and answers !
Yesterday I installed Battery Guru 2.0 and seems a more decent app than AccuBattery, will keep monitoring
AccuBattery and Battery Guru 2.0 tell me that I only have 1598mAh.
Aida64 tell me 3504mAh.
I don't understand...
I only know that my battery life is poor. I arrive with 20% or less at 8:00pm.
It is also true that I have many IOT applications always active, as well for the smartwatch, wifi, BT and GPS always on and also Always On Display all the day.
Cheers.
akirax said:
AccuBattery and Battery Guru 2.0 tell me that I only have 1598mAh.
Aida64 tell me 3504mAh.
I don't understand...
I only know that my battery life is poor. I arrive with 20% or less at 8:00pm.
It is also true that I have many IOT applications always active, as well for the smartwatch, wifi, BT and GPS always on and also Always On Display all the day.
Cheers.
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DO not forget to check the dual cells in the settings of the apps (accu battery and battery guru)
But even so.... 1600 mah x2 => ~3200mah
Very very unusual for this phone and battery