i am using an app called battery monitor widge from the play store t and have logs for the past day .
its showing different values when charging with the stock HTC charger.
Not sure if the phone or battery circuit does this , it seems the charging on the htc charger is on/off... like charging in pulses
sometimes +600 mah, stops , sometimes _ +300 mah stops , sometimes - xxx mah ...
i think its trickle charging they say the phone trickle charges after 80%. but the prob here is on the HTC charger the charge is fluctuating even below 80%
i tried a note 1 charger which has the same rating as the HTC charger. same behaviour
so it tells me the battery does not like 1A
then i switched to a 700 ma samsung charger . so far it shows a constant current of 800 mah...there is no on/off behaviour
and there is a constant charging current applied except that around 90% onwards the charge tapers off
I seem to recall reading something on the web a long time ago that said that charging at less than 1C could actually result in a faster charge to 80-90% charge.
The rationale being that if you charge at a higher rate, it forces the voltage up to the maximum faster and then the charger has to ramp down the current faster.
If you charge at say 0.7C then it takes longer for the voltage to hit the maximum and then, counterintuitively, the average current for the duration of the charge is actually higher.
I am tested this theory now... but it seems like it could be true.
using samsung charger rated @ 7C and using the battery monitor app, the samsung charger is keeping the phone charged at a constant 700 mah but the HTC charger is fluctuating from 500+ mah to 600 mah ten sometimes to 900 mah
not sure why the samsung charger seems to charge the HTC one faster than the HTC charger..
cant explain why though
They say there are different chargers behave differently with different batteries.
can someone care to share some light here?
is the HTC charger defective?
Magpir said:
i am using an app called battery monitor widge from the play store t and have logs for the past day .
its showing different values when charging with the stock HTC charger.
Not sure if the phone or battery circuit does this , it seems the charging on the htc charger is on/off... like charging in pulses
sometimes +600 mah, stops , sometimes _ +300 mah stops , sometimes - xxx mah ...
i think its trickle charging they say the phone trickle charges after 80%. but the prob here is on the HTC charger the charge is fluctuating even below 80%
i tried a note 1 charger which has the same rating as the HTC charger. same behaviour
so it tells me the battery does not like 1A
then i switched to a 700 ma samsung charger . so far it shows a constant current of 800 mah...there is no on/off behaviour
and there is a constant charging current applied except that around 90% onwards the charge tapers off
I seem to recall reading something on the web a long time ago that said that charging at less than 1C could actually result in a faster charge to 80-90% charge.
The rationale being that if you charge at a higher rate, it forces the voltage up to the maximum faster and then the charger has to ramp down the current faster.
If you charge at say 0.7C then it takes longer for the voltage to hit the maximum and then, counterintuitively, the average current for the duration of the charge is actually higher.
I am tested this theory now... but it seems like it could be true.
using samsung charger rated @ 7C and using the battery monitor app, the samsung charger is keeping the phone charged at a constant 700 mah but the HTC charger is fluctuating from 500+ mah to 600 mah ten sometimes to 900 mah
not sure why the samsung charger seems to charge the HTC one faster than the HTC charger..
cant explain why though
They say there are different chargers behave differently with different batteries.
can someone care to share some light here?
is the HTC charger defective?
Click to expand...
Click to collapse
Even I will like to know. I have been using the blackberry charger for charging my HTC one. The charger is rated 5V, 700 mA. Is it safe to use it permanently with HTC One.
Supposedly... The battery on our Google Nexus 6 has a capacity of 3220 mAh.
Specs
BATTERY Non-removable Li-Po 3220 mAh battery
Stand-by Up to 330 h
Talk time Up to 24 h
I purchased a current, voltage, detection tool http://www.amazon.ca/gp/product/B00NNGK4QS?psc=1&redirect=true&ref_=oh_aui_detailpage_o05_s00
made by SainSonic.
Okay, I know this isn't a fluke meter quality and standard, but how come when I charge my phone from i.e. 20% battery capacity left, to reach a full charge the Sainsonic USB tool reports back with a supplied mAH of approximately 1500mah to reach a 100% charge.
Are we to assume the battery capacity supplied by motorola for the Nexus 6 phone to be rigged or false? Is this another one of those cases, where your mileage will vary b.s.
I know the USB detection tool is not a Mil Spec device, but, how can it report back this off of factual value or reading?
Cheers
LormaD
2nd test
OK, so I let the phone on, til the phone did it's own shut down. I even rebooted the phone into Recovery mode, where it eventually powered off, 2x. I know this is bad and not recommended for a battery, but I wanted to try to deplete the battery completely, and using the turbo charger, charge the phone and get a mAH consumption to refill the battery.
From an empty charge to maximum, I recorded 1825mAH. I am unsure, if by TURBO charging the phone, whether I am not registering a true milliamp draw and count. My last test, will take place doing the same thing, but using a standard NON turbo charger to see whether or not this reports a difference or not.
Cheers
That meter does say that it's for between 3 and 7 volts which is pretty much saying it's made for a standard 5V usb spec current. The turbo charger uses voltages of 12, 9 and 5 volts to accomplish its faster charging speed and the charging voltage only goes down to 5V once the battery is almost full somewhere like 75% iirc.
Though it also wouldn't surprise me if the turbo charger doesn't turbo charge when running through that meter. Might check and see if the phone charges any slower when you switch to the normal charger test.
While Charging, the USB meter does show it's outputting voltage as well. AND, while charging I do have the phone using an app like Ampere so I do see that it is in fact indicating TURBO mode. But logically, the phone does complete it's charger in under 2 hours, hence it is charging very quickly = same as turbo charging.
1) It is in fact Turbo Charging. 2) The outputting voltage, even though is variable (from 5 to 9 volts in the case of Turbo Charging) would only relate to varying the mAH per / Sec if you will, from a quicker or slower "Consumption" (i.o.w. if it is quick charging, the rate of supplied mAH is faster than slow charging, so the total amount or capacity of charge is the same, it is just a matter of how quickly can you refill the empty bucket of water, with water).
I am using the Pure Nexus Project Nexus 6 Rom, flashed with the latest Radio, and I am extremely happy and very stable build (so much so, I even sent beans some props and thank$you donation). What I am disappointed with (even with previous roms and build from 5 all the way to 6) is the battery capacity (I loved the Turbo Charging so much, I did away with carrying a battery bank and purchased a 2nd Turbo Charger for the office). I did not purchase the phone new, but did get it in an almost new state (purchased from the typical, "I got to dump this just came out phone and get the latest released phone" type of tech junkie). FWIW, it is the 64gb model, and about 6 months old (I have the google bill showing the manufacturing date and sell date). I can't say I am impressed with the overall battery capacity of this phone, but it is designed to get me through a day 90% of the time, so I am never really worry free, it simply not a tank like some other monster phones that I have had (I like smartphones with a minimum of 6" of screen, my previous phone was the Samsung Galaxy Mega 6.3).
I will be honest, I have always been a battery junkie from my days as a Radiocomm R&D department tech, so I have a carryover Battery Analyzer (5K $ piece of bench equipment) that I can use for most of my battery related equipment (from battery powered yard tools, commercial grade walky talkies to household products like cordless home phones). But things like cellphones would not work, because I do not have the correct adaptor that has the correct resistance type, delta voltages, and connect-ability. In most cases if I jerry rig something (like I was curious to know what the capacity of an Energizer D size battery was compared to a Duracel D size Alkaline Battery capacity was, I could read the output mAH capacity from either battery and know which does really last longer) I can get the output capacity but cannot perform a 3x count battery analysis (which basically performs a full charge discharge 3 times in a row and spits out the 3 capacities back) which in fact I would NOT do on a Lithium battery for obvious reasons.
Hi all ! I have the Samsung Note 8 F version bought from pre-order. I have noticed that after the last update the battery of the phone is much less and above it gets warmer faster. I was curious about the capacity of the battery after a few months of normal charging without a fast charge from 20% to 100%. I read on the live battery topic about fg_cycle and fg_fullcapnom. Now I have 80 cycles with 3130 mAh capacity. I wanted to check this out and I bought the Stick Charge Meter Keweisi. I downloaded the phone at 1%, I close it, attached the stick and started charging. After 2h the LED turns green and the displayed battery charge is 2921 mAh. My question is why so little? Even I have lost in 5 months of using 300mAh or the batteries have a lower value than the declared one. Thank you!
LE:Sorry for my english!
have 2 F models and can't say I've noticed much difference in either of them, haven't done exact measurements though but both always running high performance mode and easily last a 16 hour day with regular 8 hour on screen time, what I have noticed in al my notes since the Note 2 is that after a while the first 10% seems to drop quicker from 100 to 90 but overall very stable, guessing that it is the phones battery management doing that
I have 4h sot with all on but maybe lost capacity fast this new generation of battery on S8,Note8?
Boss of Samsung mobile say battery lost 5% after 2 years of normal uz.Really?
Try checking with Accubattery app.
Sent from my SM-N950U using Tapatalk
Here is my exynos version battery info.
Here's mine.
Sent from my SM-N950U using Tapatalk
I also tried AccuBattery.In the application I had 3250 mAh.The calculation method used by this application is erroneous. If you load up to 80% or less will lower your value and if you drop to 100% in time will jump 3300 mAh. You can not check the battery capacity with the phone turned on because it is logical that there will be more consumers and will enter more mAh when charging. I will do a test with this stick charge meter but with the phone open and sure there will be more mAh to the situation when you have the phone closed. AccuBattery recommends that the phone be charged for a real appreciation to be carried on an airplane.
Hi. I have the European dual SIM version of Note 8 SM-950F and also noticed this. Don't know what to do. Here's my AccuBattery info:
We have tested the battery capacity today with the phone open. I downloaded it up to 1%, I installed AccuBattery and connected it to Stick Meter Keweisi. When I made the green LED I pulled the phone from the charger. I mention that as long as the phone was loaded I did not walk to him. I attach the result.I notice the difference between Stick and AccuBattery.
What build are you on? Just thinking if sammy is messing/patching with charging/discharging limits due to the stupid deep discharge?
I have an European version note8.
Accubattery says 3062 mah.
Fg_cycle is 81 and fg_fullcapnom is 3025.
I've had the phone for 4 months. When I bought it fg_fullcapnom was 3250 mah
Is it defective?
I have exynos Note8 F with vers.N950FXXU3BRA8.
@PlutoDelic,everything that's possible. I can not believe you can lose 300 mAh in 5 months with normal loads.
https://forum.xda-developers.com/galaxy-note-8/how-to/note-8-battery-fgasoc-fgfullcapnom-t3903417
Check this out!
THROW YOUR 120W CHARGER AWAY.
Get a charger for around 65W.
Get a decently good brand. ( I'm using Anker, 65W Mi Charger is also good. )
Anything below 30W would be too slow to charge your phone. Not really practical.
Personally tested a 10W charger, did not work out for me as it doesn't give me the same battery performance.
In my opinion, Xiaomi played us on this one. The 120W charger is a marketing gimmick. I don't think it charges the phone to 100% even though it shows 100%. Either that, or it messes with the battery calibration. As soon as I charge with a 65W charger, the battery goes back to performing properly. By that I mean, lasts me the entire day, and I still have 35-40% remaining the next day on medium usage like maps, streaming. On heavy usage, it still gives me great battery.
I'm 100% sure, you will notice the difference if you switch away from 120W charger as it will drastically extend the battery.
If you have already experienced the difference or made the switch, please do share your experience. On the stock xiaomi charger provided with the phone, the battery life is really terrible, the same usage gets me barely to the end of the day.
If you're still not satisfied by the drastic difference made by the charger only.
You can further go ahead and follow this guide from @spiral5 as well:
How to increase the battery life of the Xiaomi 11T / T Pro
Hello guys, I want to tell you about the adjustments that I have made to my Xiaomi 11T Pro and that have improved battery consumption, keeping the refresh rate of the screen at 120Hz. I would appreciate if you could tell me how it went...
forum.xda-developers.com
It will be simply because it is a fast charger, incredibly fast, and you can't completely charge lithium batteries fast, there is always a slow end stage that will take an hour or more regardless of how many watts the charger is. The last top off stage, or saturation stage on lithium cells needs by definition to take time and will charge at a lower current and it has to be slower.
They are showing 100% on fast charging, but that's only the bulk charge capacity with a lot of the saturation stage not done, so you don't get full capacity. The 100% indicator is saying you've charged as much as you can fast, but it might only be 70% actually full. If it is left on the charger, it will likely wait until the temperature has dropped then continue for an hour or so completing the saturation charge, all while still indicating charging is complete, but if you remove it from the charger the moment it hits 100%, then it's not the same 100% you'd get by leaving for a couple of hours.
If they indicated 100% correctly as being as charged as it can be, it will take 20 minutes on fast charge plus an hour or two for the saturation stage to be done, so doesn't quite sell as well!
Xiaomi are cheating somewhat by saying 0 to 100% in x time on fast charge, as the definition of 100% when fast charging is changed.
Personally I just charge over night at 5 watt, better for the battery and you get full capacity.
PhilipL2021 said:
It will be simply because it is a fast charger, incredibly fast, and you can't completely charge lithium batteries fast, there is always a slow end stage that will take an hour or more regardless of how many watts the charger is. The last top off stage, or saturation stage on lithium cells needs by definition to take time and will charge at a lower current and it has to be slower.
They are showing 100% on fast charging, but that's only the bulk charge capacity with a lot of the saturation stage not done, so you don't get full capacity. The 100% indicator is saying you've charged as much as you can fast, but it might only be 70% actually full. If it is left on the charger, it will likely wait until the temperature has dropped then continue for an hour or so completing the saturation charge, all while still indicating charging is complete, but if you remove it from the charger the moment it hits 100%, then it's not the same 100% you'd get by leaving for a couple of hours.
If they indicated 100% correctly as being as charged as it can be, it will take 20 minutes on fast charge plus an hour or two for the saturation stage to be done, so doesn't quite sell as well!
Xiaomi are cheating somewhat by saying 0 to 100% in x time on fast charge, as the definition of 100% when fast charging is changed.
Personally I just charge over night at 5 watt, better for the battery and you get full capacity.
Click to expand...
Click to collapse
Great insight, they should have mentioned it in a different way instead of saying it's 100% charged. But then that ain't gonna earn them any bucks.
Are you getting a good battery life on 5W? As when i was using the 10W charger and use the phone at the same time it would take forever to charge. And the battery sot wasn't as good as well compared to 65W sot for similar usage.
I also use 10w (5v 2A) and can get for about 8h of sot, charging time is in my case takes about 2:20h from 17-100%Its not that bad, and i prefere slow charging time anyway, i only use 120w when in hurry
Delete
nousernamesorry said:
Great insight, they should have mentioned it in a different way instead of saying it's 100% charged. But then that ain't gonna earn them any bucks.
Are you getting a good battery life on 5W? As when i was using the 10W charger and use the phone at the same time it would take forever to charge. And the battery sot wasn't as good as well compared to 65W sot for similar usage.
Click to expand...
Click to collapse
If you are using the phone at the same time as charging, you are of course using a chunk of that 5 watts to power the phone, so whilst your battery may not be discharging, there isn't much left over to charge it up.
I always charge overnight as I easily get a day if not a few days from a single charge as I'm not using it much currently as working from home, but if you need to top up during the day whilst still perhaps using it, you would need a charger with a bit more wattage.
Also note that whilst it may say 100% charged, that could represent anywhere from say 95% to 100% actual charge. This is because lithium cells can not be trickle charged, so when charging it will get to being a full capacity, then charging stops, the battery is allowed to discharge several percent before automatically being topped up again, and the cycle continues. So depending on where in that cycle you take the phone of charge, you might be really at 100%, but could equally be at 95%. Because people would complain if the true charge status was shown, i.e. people leave the phone on charge all night and its still only showing 95% in the morning simply because it's on the discharge stage of the discharge/top up cycle when they look at it, they would complain, so 100% is shown from say anywhere between 95% and 100% of real charge state. This applies to all devices. It is why sometimes you take your phone of charge at 100% and it seems to stay at 100% for some time, and other times it starts going down soon after you've unplug it from the charger. Google on their Pixels have an adaptive battery setting and use the alarm clock you've set to know when you are getting up, so they make sure they time that cycle so that you get the phone at a real 100% capacity.
Good thread fellas. Yeah 120w it's just a thing you should use when there's not another option or your in a real rush. And by using it your battery calibration might get confused.
It's as the OP mentioned, with 120w you can feel that your battery life is shorter than charging with lower wattages.
IMO and experience I calibrated my phone's battery (drained it to 0 let it turn off , leave it unattended for around 10 min, then charge it with a 10w while still turned off if possible. And leave it charging 1h more after it says 100%) and b ayer doing so my 11t pro finally became the 2-day phone it should have been from day one.
I personally prefer to charge mine with a 18w (1h20min) or a 22.5w (1h) during the day. 10w it's just for overnight, it's just to long 2h40min or more.
This might be the reason why Samsung nor Apple has not yet jump into bandwagon of 100w-ish charging. Even not to 65w. It just my hunch though. Still, 100w-ish charging might be life changing in certain situation. And if I recall correctly, the most ideal percentage to charge Li-On is around 80-ish, that might the actual percentage that we get if we charge to 100% with 100w-ish charger.
To be honest i tried 33w charger and 120w charger and battery performance for me is the same(4.5sot + 6 background yt music)
The thing is when u use 120W charger and battery go 100% you have to let it charge 5-10 min more because is not fully charged.
You can check with app called ampere(download from playstore)
Nikøs said:
To be honest i tried 33w charger and 120w charger and battery performance for me is the same(4.5sot + 6 background yt music)
The thing is when u use 120W charger and battery go 100% you have to let it charge 5-10 min more because is not fully charged.
You can check with app called ampere(download from playstore)
Click to expand...
Click to collapse
Please try a 65W charger from xiaomi or anker, i guarantee you the difference. Sot also depends on the usage, but there will surely be a drastic increase in the battery capacity.
And i completely agree to your point on trickle charging. But unfortunately, it does not justify the 4 hrs sot difference im getting after charging my phone through different chargers. 65W gives me 8 hours, whereas 120W full charge gives me around 4 hours.
I feel xiaomi really just did this as a marketing gimmick and did a half hazard job at it.
Li
PhilipL2021 said:
If you are using the phone at the same time as charging, you are of course using a chunk of that 5 watts to power the phone, so whilst your battery may not be discharging, there isn't much left over to charge it up.
I always charge overnight as I easily get a day if not a few days from a single charge as I'm not using it much currently as working from home, but if you need to top up during the day whilst still perhaps using it, you would need a charger with a bit more wattage.
Also note that whilst it may say 100% charged, that could represent anywhere from say 95% to 100% actual charge. This is because lithium cells can not be trickle charged, so when charging it will get to being a full capacity, then charging stops, the battery is allowed to discharge several percent before automatically being topped up again, and the cycle continues. So depending on where in that cycle you take the phone of charge, you might be really at 100%, but could equally be at 95%. Because people would complain if the true charge status was shown, i.e. people leave the phone on charge all night and its still only showing 95% in the morning simply because it's on the discharge stage of the discharge/top up cycle when they look at it, they would complain, so 100% is shown from say anywhere between 95% and 100% of real charge state. This applies to all devices. It is why sometimes you take your phone of charge at 100% and it seems to stay at 100% for some time, and other times it starts going down soon after you've unplug it from the charger. Google on their Pixels have an adaptive battery setting and use the alarm clock you've set to know when you are getting up, so they make sure they time that cycle so that you get the phone at a real 100% capacity.
Click to expand...
Click to collapse
Like i previously mentioned as well in the above post, trickle charging or that 5-10% of charge shouldnt make the difference im experiencing after switching chargers. 4 hours sot difference is no joke. Its literally half battery capacity.
I love the phone, but Xiaomi really messed around with us on this.
nousernamesorry said:
Please try a 65W charger from xiaomi or anker, i guarantee you the difference. Sot also depends on the usage, but there will surely be a drastic increase in the battery capacity.
And i completely agree to your point on trickle charging. But unfortunately, it does not justify the 4 hrs sot difference im getting after charging my phone through different chargers. 65W gives me 8 hours, whereas 120W full charge gives me around 4 hours.
I feel xiaomi really just did this as a marketing gimmick and did a half hazard job at it.
Click to expand...
Click to collapse
Unfortunately i don't have a 65w charger :/
I get 4.5 sot because i also use yt music for 6-7 hours in background + 5g all dhe time.
The problem i noticed is that when i use my phone after charging my battery gives me good sot (5 hour non stop gaming mlbb and still have 25% left). But if i charge at night and use the phone the next day the battery drain really fast (that's why i charge every morning before i leave home).
I'm not really happy with battery life to be honest but im really happy with charging speed
+ How you guys get sot 8hrs?. I never couldn't do that with my phones( old device k20 pro average 5hrs sot)
Nikøs said:
Unfortunately i don't have a 65w charger :/
I get 4.5 sot because i also use yt music for 6-7 hours in background + 5g all dhe time.
The problem i noticed is that when i use my phone after charging my battery gives me good sot (5 hour non stop gaming mlbb and still have 25% left). But if i charge at night and use the phone the next day the battery drain really fast (that's why i charge every morning before i leave home).
I'm not really happy with battery life to be honest but im really happy with charging speed
+ How you guys get sot 8hrs?. I never couldn't do that with my phones( old device k20 pro average 5hrs sot)
Click to expand...
Click to collapse
Even after switching away from 120W charger, if you're not seeing a drastic difference, then i recommend changing the chargers to something similar to what i own (anker) about 65W or a mi charger 65W (official). Because i personally experienced the huge battery life change, and i know this phone can give a 1.5 day battery life on medium usage. On heavy usage it lasts me easily the entire day (8hours sot easy). But usage may vary. And when i was using 120W charger, it was giving me 4hours sot, with the same usage. So i know, the phone has the capacity to do it.
Maybe it could be a non branded charger issue? I'm not sure. It should show quick charging when charging via the different charger as well that way you know its getting the juice it requires.
Rocking a Xiaomi 67W charger and so far not much difference. I'm using the phone out of the box, I am not switching back to 60hz since whats the point of buying it if you wont use 120hz. Lets see after a few more cycles.
EDIT: After using this 67W for 2 days now, battery life is the same. IT might not be the charger but going back to 60 Hz might be the reason some ppl had improved battery life. I will return back to 120W since I prefer the ultra fast charging while the phone stays cool at the same time (mine is at 40-41 degrees C and it charges around 20 minutes)
EDIT 2: Tried 60hz for a day, since I was out with family, it noticeably improved battery life even though I charged with the 120W adapter. Hopefully Xiaomi adds a dynamicswitch feature for us soon or a 90hz option
Pher- said:
Rocking a Xiaomi 67W charger and so far not much difference. I'm using the phone out of the box, I am not switching back to 60hz since whats the point of buying it if you wont use 120hz. Lets see after a few more cycles.
EDIT: After using this 67W for 2 days now, battery life is the same. IT might not be the charger but going back to 60 Hz might be the reason some ppl had improved battery life. I will return back to 120W since I prefer the ultra fast charging while the phone stays cool at the same time (mine is at 40-41 degrees C and it charges around 20 minutes)
Click to expand...
Click to collapse
I tried using my phone on 120hz for a day or two, i get like an hour less compared to 60hz i find a major difference in battery even with 120hz enabled.
Not sure why. But if it works, it works.
Also just to clear my experience, i never use this phone on 120hz, even when i initially was using the 120w charger. It has always been set to 60hz for me, as i like to save battery wherever i can.
Update: Using accubattery, when my phone reached 100%, its still taking in current around 1500-2000mah range (around 10-15w) and its trickle charging the battery. The estimated capacity when reaching 100% is around 2200 mah(times 2 since our phone is a dual cell battery) then letting it trickle charge for a few minutes (an extra 10) made the capacity to 2550(which is around 5100 mah) and by doing so I am easily getting 6-7 hr sot on 120HZ. It may be a marketing trick to reach 100% in an instant but leave it plugged in for an extra 10 mins or so to get more screen on time.
quite great battery life
Pher- said:
Update: Using accubattery, when my phone reached 100%, its still taking in current around 1500-2000mah range (around 10-15w) and its trickle charging the battery. The estimated capacity when reaching 100% is around 2200 mah(times 2 since our phone is a dual cell battery) then letting it trickle charge for a few minutes (an extra 10) made the capacity to 2550(which is around 5100 mah) and by doing so I am easily getting 6-7 hr sot on 120HZ. It may be a marketing trick to reach 100% in an instant but leave it plugged in for an extra 10 mins or so to get more screen on time.
Click to expand...
Click to collapse
Don't trust the apps. Find some real volt meter.
devvikram said:
quite great battery life
View attachment 5545329
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Click to collapse
Amazing!
MIUI 13 by any chance?
I am on miui 13 official, had heavy battery drain on miui12.5, disabled miui optimizations and now everything is good
Edit: apparently the program that handles battery changed after disabling miui optimizations, maybe it's a bug related issue
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