Galaxy S20 Real Battery Capacity - Samsung Galaxy S20 / S20+ / S20 Ultra Questions &

I've recently joined the proud club of (regular) S20 owners and am really enjoying the phone, all aside from battery life. Honestly, battery life is worse than my 2.5 year old Pixel 2XL and can barely get through a day. I was investigating causes of the drainage and found that the capacity calculated by AccuBattery is a measly 3565mAh. With Samsung advertising that the typical battery capacity being 4000mAh with the rated minimum capacity being 3880mAh, I'm very curious to know what are your battery capacities? (The AccuBattery app will calculate this automatically in its health tab)

Accubattery reports the battery capacity on my S20 5G as 3542mAh. I upgraded from a Huawei P20 Pro which has amazing battery life and find the S20 weak in comparison. But with it being new I have been playing with it a lot and still tweaking the settings to optimise the battery performance so will give it more time. I've had the P20 Pro for 2 years and Accubattery reports the battery capacity as about 3800mAh from its original 4000mAh new capacity which I think is amazing.
Also initially the S20 was using about 3% battery per hour overnight, now it's 1.5% which I think is about right as I have a Gear S3 connected and leave WiFi on etc. I've also set the screen refresh rate to 60 Hz and 5G off when home.
I'll give it more time and might run down to 0% and give it a full charge to see if Accubattery gives a different rating.

BurtieBL said:
Accubattery reports the battery capacity on my S20 5G as 3542mAh. I upgraded from a Huawei P20 Pro which has amazing battery life and find the S20 weak in comparison. But with it being new I have been playing with it a lot and still tweaking the settings to optimise the battery performance so will give it more time. I've had the P20 Pro for 2 years and Accubattery reports the battery capacity as about 3800mAh from its original 4000mAh new capacity which I think is amazing.
Also initially the S20 was using about 3% battery per hour overnight, now it's 1.5% which I think is about right as I have a Gear S3 connected and leave WiFi on etc. I've also set the screen refresh rate to 60 Hz and 5G off when home.
I'll give it more time and might run down to 0% and give it a full charge to see if Accubattery gives a different rating.
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That's interesting - thanks for that feedback

https://ibb.co/34bnWg9
Have same problem, the charge stop at 3630mAh .... have really 4000mAh capacity? Or is limited for Sansung
Try Aida64 from play store, and look....
Thx

Related

Charging Speed?

I was just wondering, what charging speeds are you guys getting? Bought this phone a week ago from tmobile and it says it takes approximately an hour and a half to 'fast' charge from 0-100%. Seems a bit slow coming from an S6 edge and I'm also getting terrible SOT so I'm wondering if it's defective
I have the exynos Duos model. It takes about the same amount to charge mine full.
I have not tracked SOT's yet. But I am happy that it lasts 2 days on one charge.
N930FD here it takes about 1h to fully charge from 5% (the lowest I've been) to 100%. It can last up to two days from 100% for me too.
the charge time should be longer the S6 only had a 2600mah battery, while the Note 7 has a 3500mah battery so really it is about a 40% bigger battery.
the screen is bigger so it will draw more power but really the extra battery should more than compensate for the screen size increase, but then it also comes down to how much power draw difference there is from the 2 CPU's. also I believe a few people have said there is worse battery performance with a snapdragon models over the exynos chips, so that could also be a factor if the devices have different brands of chip.

Battery Health in AccuBattery

I purchased my 5t about 4 weeks ago and the stats in AccuBattery are now showing my capacity at 2930 mah and the health at 89%. If accurate, these are somewhat concerning considering how new the phone is. Anyone else seeing similar stats? I ran AccuBattery on my Nexus 6p and it always seems pretty accurate.
That's the same capacity I get on my phone with AccuBattery. Other people on the OnePlus forums also had the same results so I think that it is probably normal.
I don't trust that application any more (even if I bought it 2 days ago). So i purchased my phone 4 days ago and after the second charge it says 89%.... Many battery applications are useless on the Play Store.
It is a little wonky on certain phones sometimes. Have you done several charge and discharge cycles? I know it definitely won't be too accurate until you run it a few times. Since you said you used it on your 6P though, I'm guessing you know this already. As long as battery life is still good, I guess I wouldn't worry too much.
I run Accubattery on my mine, it says 92% after a couple of weeks. Battery lasts for a full day of heavy use, and then some.
I also ran it on my 2 year old Moto X Style, and it said 51% - and I felt it was telling the truth, since I got about 2hrs SOT from it if i was lucky!
Same for me, showing about ~3000 mAh from the beginning.
It's also showing ~107% on a Nokia 3 of a friend of mine, so I guess you just can't trust the app on that perspective.
lol, guys
ok now, several factors to consider before you jump to conclusions (ive been using accubattery for several months now with great results):
1) your sample size is waaay too small. every scientist/engineer/mathematician, etc out there will tell you that u cant jump to a conclusion based on just two samples. give it some time, use the app regularly for several weeks and only THEN can you make assumptions about the accuracy of the collected data.
2) ive noticed that the final capacity reading is more accurate, the closer a charge cycle is to 100%. which makes sense if you think about current quick charging technologies: they provide high amperage at steady voltage at first up to like 75-85%, then they switch more and more to trickle charge with low amperage. advantages: fill up the battery quickly, but without putting too much wear onto it.
thus: if you just do a quick charge cycle, say from 30-50% then the slope steepness is way higher, thus the calculated capacity will differ. so there is a dilemma: either do large charging cycles with higher wear on the battery, but more accurate capacity data in the end, or do smaller charging cycles with inaccurate data but less wear on the battery.
3) when charging to 100%, dont unplug the phone when it reads 100%! rather check the current charging amperage in accubattery. only when that drops to zero (or -1 mA in my case) is the battery fully charged and ull get a more accurate capacity reading than when stopping the charge when 100% is reached. if you unplug it too early, the capacity calculation will be on the low side
hope this helps!
cheers
jbmc83 said:
your sample size is waaay too small. every scientist/engineer/mathematician, etc out there will tell you that u cant jump to a conclusion based on just two samples.
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Yup, am scientist, can confirm
Same thing happened to me, even after using AccuBattery for a couple of weeks (and thus collecting more than a couple of samples, both Dash charge and "normal") it still showed 89% battery health at around 2940 mAh. Got my phone one month ago.
I don't think there's any problem with the battery itself, especially as it's not just me having this problem.
Maybe the battery is 3000mah and they are lying about it ???
Explyy said:
Same thing happened to me, even after using AccuBattery for a couple of weeks (and thus collecting more than a couple of samples, both Dash charge and "normal") it still showed 89% battery health at around 2940 mAh. Got my phone one month ago.
I don't think there's any problem with the battery itself, especially as it's not just me having this problem.
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what kind of charging cycles did u have? the range i mean...
jbmc83 said:
what kind of charging cycles did u have? the range i mean...
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I'd say 30% of the times 10 to 100%
40% of the times 30/40 to 100%
And the rest just random stuff: 50 to 100, some top ups here and there
This is not scientific data though, that's just what I recall from the couple of weeks I used AccuBattery. I'll try to find a screenshot but I doubt I have any.
I reinstalled it today and from a single 14 to 80% charge it gave me ~2930 mAh and 89% health. I'm on OOS 5.0.2 stable, will try the app for some time and share my results (more scientific this time)
After several weeks of use, the reading is still constant at 86% ~ 2827mAh. Not sure what to think. As previously mentioned the first 5t I purchased and returned for the 128gb version came in at 89% same as @Explyy. Is it possible I have an inferior battery?
hm, there indeed seems to be a pattern emerging with so many different users reporting identical capacity values at 2900-3000 mAh for their new op 5t. two possibilities: either accubattery cannot properly read out and analyze the 5t's battery charge controller. or the battery capacity is indeed around 2900-3000 mAh instead of the advertized 3300. its normal for battery capacities to be around -100 mAh from the official value, but -300 to -400 would be crazy.
guys, just to be sure: did you leave your phones plugged in until the charging rate in accubattery dropped to 0 mA? as i said before, if you unplug the phone once it shows 100% but still charging, the resulting capacity will be less than the actual one.
Sent from my Xiaomi Mi Max 2 (Oxygen) using Tapatalk
jbmc83 said:
hm, there indeed seems to be a pattern emerging with so many different users reporting identical capacity values at 2900-3000 mAh for their new op 5t. two possibilities: either accubattery cannot properly read out and analyze the 5t's battery charge controller. or the battery capacity is indeed around 2900-3000 mAh instead of the advertized 3300. its normal for battery capacities to be around -100 mAh from the official value, but -300 to -400 would be crazy.
guys, just to be sure: did you leave your phones plugged in until the charging rate in accubattery dropped to 0 mA? as i said before, if you unplug the phone once it shows 100% but still charging, the resulting capacity will be less than the actual one.
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Yes, I left the phone plugged until the charging current dropped to 0, as I noticed that when it reaches 100 it's still charging at a few mA
On a related note I charged my battery from 10% to 100%, until the mA rate dropped to 0mA. I had the phone hooked up to a USB power meter during this time. The USB meter only read about 2500mAh charged. So since I only charged 90% of the battery I figured it should be around 90% the capacity of the battery, which is 2,970mAh. If I assume the battery is 3000mAh then a 90% charge would be around 2700mAh, closer to my reading. I'm going to run some more charge cycles and see if I get the same results.
Edit: forgot to say that I used a standard 2amp charger, not the dash charger that came with the phone.
yerger said:
On a related note I charged my battery from 10% to 100%, until the mA rate dropped to 0mA. I had the phone hooked up to a USB power meter during this time. The USB meter only read about 2500mAh charged. So since I only charged 90% of the battery I figured it should be around 90% the capacity of the battery, which is 2,970mAh. If I assume the battery is 3000mAh then a 90% charge would be around 2700mAh, closer to my reading. I'm going to run some more charge cycles and see if I get the same results.
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Did you use the dash adapter or just a regular one?
Explyy said:
Yes, I left the phone plugged until the charging current dropped to 0, as I noticed that when it reaches 100 it's still charging at a few mA
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and still no difference in the calculated capacity in that particular cycle?
jbmc83 said:
and still no difference in the calculated capacity in that particular cycle?
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As far as I remember no, always reading ~2950mAh
Explyy said:
Did you use the dash adapter or just a regular one?
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Click to collapse
Someone who's having accubattery report ~3000 mah should download AIDA64 and look and see what it reports the battery size to be......

Charging speed

To power up, you consume Red Bull. But your phone just needs its adaptive fast charger. Rate this thread to express how quickly the Samsung Galaxy S10+ can charge. A higher rating indicates that it charges extremely fast.
Then, drop a comment if you have anything to add!
They need to step it up to 12v 25w at a minimum. It's not terrible as it is, but knowing how much better it could be is a bit of a kick in the shin... especially considering the expense and the fact it's supposed to represent the best of the Galaxy line.
It's good, yet still somehow disappointing.
Haadkoe said:
They need to step it up to 12v 25w at a minimum. It's not terrible as it is, but knowing how much better it could be is a bit of a kick in the shin... especially considering the expense and the fact it's supposed to represent the best of the Galaxy line.
It's good, yet still somehow disappointing.
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Click to collapse
Considering the competition offers must faster charging, Samsung should let us charge at 25W just like the s10 5G variant will be able to.
It's actually slow as FF. Charging this device (especially with screen on) is a nightmare. During the day, with auto brightness and mostly bright environment hitting ~15-20% in 30 minutes. That's ridiculous.
My moto x pure edition 2015, charges with turbo charge quicker than this s10+ fast charge.
I'm happy with the charging speed, fast enough to charge and not too fast to deplete the battery life!
hinxnz said:
I'm happy with the charging speed, fast enough to charge and not too fast to deplete the battery life!
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Click to collapse
Same here 1.5hr or less for a 4000+ mhz battery is satisfactory.
The Huawei Mate 20 Pro used to charge from 5% to 100% in 50 minutes, but the overall performance is still far from S10plus. I struggled to get 8+ hours SOT without standby on the Mate 20Pro, whereas with the S10 Plus ive had a steady 9hrs and even achieving 12hrs SOT and 20hrs standby.
I can charge my S10+ running the AT&T firmware here with a LG fast charger in 1 hour 24 minutes coming from 19%
Recently i purchased Samsung 25w charger but its take same time like bundle 15w charger
what's better for the battery, shorter charge/less heat from 50% or 1 1/2 hour full charge from 20%?

			
				
what's better or does it make a difference?
1. recharge battery when 50%?
2. recharge battery when 20%?

Battery life drained extremely fast under 20%

Hi all
I noticed that the battery of my nate 20x 5g drains extremely fast under 20 % it went directly from 20 to 16 then to 8 then to 3 percent
Also the battery life 100 percent at 1pm drains to 30 percent at 6pm using only whatsapp and some calls it isn't as good as my p30 pro (1.5day normal usage)
I need your help cause if it's the same on all mate 20 x I'll be obliged to change the phone even I love everything on it except the battery life
arkamaxxx said:
Hi all
I noticed that the battery of my nate 20x 5g drains extremely fast under 20 % it went directly from 20 to 16 then to 8 then to 3 percent
Also the battery life 100 percent at 1pm drains to 30 percent at 6pm using only whatsapp and some calls it isn't as good as my p30 pro (1.5day normal usage)
I need your help cause if it's the same on all mate 20 x I'll be obliged to change the phone even I love everything on it except the battery life
Click to expand...
Click to collapse
hm thats weird. check ur screen brightness, thats the no. 1 battery life sucker. also, switch off all unneeded sensors when not in use (wifi, mobile data, BT, NFC, GPS, etc).
aside from that, have a look at your performance profile (performance, balanced, battery saver) and also check and see how many apps are non battery optimized in settings, as well as how many apps are allowed to run in background and be launched automatically.
Thanx so much for your quick reply
I'll check this out and I'll give you a feed back
arkamaxxx said:
Hi all
I noticed that the battery of my nate 20x 5g drains extremely fast under 20 % it went directly from 20 to 16 then to 8 then to 3 percent
Also the battery life 100 percent at 1pm drains to 30 percent at 6pm using only whatsapp and some calls it isn't as good as my p30 pro (1.5day normal usage)
I need your help cause if it's the same on all mate 20 x I'll be obliged to change the phone even I love everything on it except the battery life
Click to expand...
Click to collapse
wipe the phone don't install your sht wipe other crap apps and test the battery ... if still bad , need replacing...
Below 20% battery usage increases rapidly, this is normal.
The phone's wattage usage is constant as is its V+ power rail voltage. Volts X Amps=watts therefore as battery voltage falls the phone's voltage converter draws more amps to make up for the difference in falling voltage.
The phone's actual wattage consumption remains almost the same except for power lost in the voltage conversion.
Best to NOT use after 20-30% as it stresses the battery unnecessary.
arkamaxxx said:
I noticed that the battery of my nate 20x 5g drains extremely fast under 20 % it went directly from 20 to 16 then to 8 then to 3 percent
Click to expand...
Click to collapse
Hey man,
Unfortunately its normal for that phenomenon to occur not only on the mate 20x but on other phones as batteries age losing their lasting strength. My sammy a70 also acts this way at the 20% point where battery scales down rapidly as you've described.
This is due to a few factors like one or more cells inside degrading over time as estimates to the battery gauge will be missing by the percentage of juice represented by the missing/damaged cell. There are other factors that come into play but this is by far the most frequently occurring event.
You can try replacing the battery which entails thermally heating the back cover to open the phone or buying a battery case like the one I linked below which I bought a few months ago. It has helped me extend my 20x's battery to 6 - 9 days under medium to heavy use without a recharge while killing bt, gps, data, etc. Under light use I was able to pull off 12 days without recharging.
https://www.aliexpress.com/item/1005001888167787.html?spm=a2g0s.8937460.0.0.1c4e2e0ePKHzP0
Deanro said:
Hey man,
Unfortunately its normal for that phenomenon to occur not only on the mate 20x but on other phones as batteries age losing their lasting strength. My sammy a70 also acts this way at the 20% point where battery scales down rapidly as you've described.
This is due to a few factors like one or more cells inside degrading over time as estimates to the battery gauge will be missing by the percentage of juice represented by the missing/damaged cell. There are other factors that come into play but this is by far the most frequently occurring event.
You can try replacing the battery which entails thermally heating the back cover to open the phone or buying a battery case like the one I linked below which I bought a few months ago. It has helped me extend my 20x's battery to 6 - 9 days under medium to heavy use without a recharge while killing bt, gps, data, etc. Under light use I was able to pull off 12 days without recharging.
https://www.aliexpress.com/item/1005001888167787.html?spm=a2g0s.8937460.0.0.1c4e2e0ePKHzP0
Click to expand...
Click to collapse
Thank you so much for these explanations
arkamaxxx said:
Thank you so much for these explanations
Click to expand...
Click to collapse
Youre very welcome my friend

how to increase lifespan of worn out battery?

Ok guys,
SOT was just around 5h 30 min so I suppose battery is pretty badly worn out.
Probably the phone has been used around 1.5 y and I see date of manfufacture 09/2019.
So I switched to dark mode,enabled power saving,disabled all gestures,switched to fullHD+ res and for sake of battery I'm nor charging with super fast option.
I think I won't even charge at max capacity because accubattery tells me the wear out has smallest value when I charge it at 85 %,so I suppose I will charge it to 85 %.
I will discharge battery at 15 %,never less.
I'm charging with airplane mode ON,because I'm not busy person to need phone while charging.
I can also charge the battery when the phone is OFF and I suppose that is good for battery too.
So dear friends what else I can disable in Android 11 and try to increase it's lifespan?
These are all things which came to my mind from experience.
Phoneinfo is reporting under USAGE HISTORY when I tap on it few times health of only 41 %,but don't think it's accurate.
With other software DevCheck and AccuBattery can't get battery wear level,discharge cycles info.
Now I charged it for first time after buying phone to 80 % (suggested by Accubattery) and this is what I got,dunno if it's accurate or not,but I don't believe that health is 96 %,I wish it is.
Don't discharge past 20% but 30 or 40% is a better cutoff. Charging to 70 or 80% max most times will also help. Li's prefer frequent midrange charging.
These batteries aren't that hard to change out. Just had one fail in my Note 10+. As they age that becomes more likely to happen.
Keep an eye open for rear cover bulging, replace the battery asap if this happens.
The battery sits directly on top of the display and can damage it if it swells.
Erratic fast charging and diminished capacity are also signs of a Li battery failure and with the hump there's no doubt.
blackhawk said:
Don't discharge past 20% but 30 or 40% is a better cutoff. Charging to 70 or 80% max most times will also help. Li's prefer frequent midrange charging.
These batteries aren't that hard to change out. Just had one fail in my Note 10+. As they age that becomes more likely to happen.
Keep an eye open for rear cover bulging, replace the battery asap if this happens.
The battery sits directly on top of the display and can damage it if it swells.
Erratic fast charging and diminished capacity are also signs of a Li battery failure and with the hump there's no doubt.
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Click to collapse
oh okay,thank you.
Look at the accubattery readings,doesn't look that bad,huh?
How and when will I know that battery is for replacement?
I still can't find software which would report me wear cycles.
Accubattery... this is it's least useful feature.
Compare your SOT now to when it was new.
It's way more than a 4% drop in capacity.
In reality it's more like 60% or so! It depends of course on how much it's current draw is now and if it's about what it's usage was when new*.
It may also be the phone as it maybe incapable of actual ma measurement and only estimates it bases on battery voltage drop.
*my 10+ is getting around 10 hours SOT but with some battery hogs it could easily fall to 6 hrs SOT with a new battery.
blackhawk said:
Accubattery... this is it's least useful feature.
Compare your SOT now to when it was new.
It's way more than a 4% drop in capacity.
In reality it's more like 60% or so! It depends of course on how much it's current draw is now and if it's about what it's usage was when new*.
It may also be the phone as it maybe incapable of actual ma measurement and only estimates it bases on battery voltage drop.
*my 10+ is getting around 10 hours SOT but with some battery hogs it could easily fall to 6 hrs SOT with a new battery.
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Click to collapse
I haven't bought new phone,just used...I wrote that SOT is around 5h and 30 min.
paparazzo79 said:
I haven't bought new phone,just used...I wrote that SOT is around 5h and 30 min.
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Click to collapse
Great deal. You did good, the 10+ is a great phone
It still running on Pie?
The SOT runtime is very subjective depending how well optimized it is. If it's running warm* while surfing the web with screen brightness at 40%, it's not optimized and probably using more battery than it has too.
*ambient temp around 72°F but the phone is noticeably warm.
[ROOT] HEBF Battery Saver - Apps on Google Play
+ Performance, + Battery life and an awesome toolbox for experienced users!
play.google.com
Great app for getting most of of your battery with some great performance tweaks as well. Difference is very noticeable on my device and premium is very reasonable.
Also recommend tasker. I have it set so my NFC and mobile data are automatically of when at home and automatically turned on (with WiFi off) when WiFi disconnects. Also GPS off at all times unless Google maps is open. These made all made a huge difference for me. Reckon combined they at least doubled my battery life per charge.
paparazzo79 said:
I haven't bought new phone,just used...I wrote that SOT is around 5h and 30 min.
Click to expand...
Click to collapse
Great deal. You did good, the 10+ is a great phone
It still running on Pie?
The SOT runtime is very subjective depending how well optimized it is. If it's running warm* while surfing the web with screen brightness at 40%, it's not optimized and probably using more battery than it has too.
*ambient temp around 72°F but the phone is noticeably warm.

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