S20+ Accubattery estimated capacity - Samsung Galaxy S20 / S20+ / S20 Ultra Questions &

I'm just curious, because I've never even looked at the health tab (on THIS phone) until today, since I havent even had my phone for a while month yet. And I also have been getting excellent battery life, so I wasn't concerned about it.
But I looked, kinda by accident at the health tab and saw my estimated capacity is only 96% of what it should be. I've gone through enough charging cycles for their reading to be "accurate" by now, so the data to get the result is there.
I'm just curious, for other people with an S20+, whether it's a SD like mine or the Exynos model, what does your Accubattery estimated capacity read as? Also, how long have you had your phone and how many charge cycles have you done so far? Because there is no way on Earth I could have lost 4% battery in under a month, so either their reading is wrong or Samsung is lying about the battery capacity.

mistermidas said:
I'm just curious, because I've never even looked at the health tab (on THIS phone) until today, since I havent even had my phone for a while month yet. And I also have been getting excellent battery life, so I wasn't concerned about it.
But I looked, kinda by accident at the health tab and saw my estimated capacity is only 96% of what it should be. I've gone through enough charging cycles for their reading to be "accurate" by now, so the data to get the result is there.
I'm just curious, for other people with an S20+, whether it's a SD like mine or the Exynos model, what does your Accubattery estimated capacity read as? Also, how long have you had your phone and how many charge cycles have you done so far? Because there is no way on Earth I could have lost 4% battery in under a month, so either their reading is wrong or Samsung is lying about the battery capacity.
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Attaching screenshot for reference.

Mine after 31 sessions says 99%. Some one more technical could help with why yours is low.
Have had the phone for a month now. Exynos version. Had installed accubattery on the first day I believe...

Its a bug I think as I had an s20+ from new and it came out of the box at 17 percent health yet the battery life is phenomenal

njan_ivide said:
Mine after 31 sessions says 99%. Some one more technical could help with why yours is low.
Have had the phone for a month now. Exynos version. Had installed accubattery on the first day I believe...
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Do you charge from 0-100%, every time you charge? Or basically, what are your charging habits?

mistermidas said:
Do you charge from 0-100%, every time you charge? Or basically, what are your charging habits?
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I don't let the charge run below 25-30% if I can help... I get a screen on time of 6.5 - 7hrs by the time is 25% And 100 - 0 is estimated to last for 9hrs 25mins screen on as per accubattery... I let it charge through the night till 100%, no restrictions there.

Mine is 94% 4218mAh,first phone that I have with this huge difference.I have it for almost one month now..Battery life is great with 6.5-8.5 screen hours..Also strange thing,manufacture date is 5th of March and I get the phone in my hands on 11th of March..Exynos chip.

njan_ivide said:
I don't let the charge run below 25-30% if I can help... I get a screen on time of 6.5 - 7hrs by the time is 25% And 100 - 0 is estimated to last for 9hrs 25mins screen on as per accubattery... I let it charge through the night till 100%, no restrictions there.
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Yeah that's pretty much what I do, except I don't leave it charging overnight. But for the most part I'll charge to 100% from 30-40%.

gabilondo said:
Mine is 94% 4218mAh,first phone that I have with this huge difference.I have it for almost one month now..Battery life is great with 6.5-8.5 screen hours..Also strange thing,manufacture date is 5th of March and I get the phone in my hands on 11th of March..Exynos chip.
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I have had mine since March 3rd, SD model, but yeah my battery life is overall amazing...but I have no idea why the estimate is so far off. Because it's no way it went down 4% for me in 1 month. I know it's an estimate only, but it is weird that it's off so much when it should be no less than 99% in the estimate.

Related

[Q] Battery charging regimen?

Is there a preferred battery charging regimen for the One X battery?
That is, is it better to, say, always let it drop to 15% and then recharge to 100%, or can/should I charge whenever possible, or in smaller increments?
Also, are there disadvantages to using the phone while charging (as I tend to do quite a lot )?
Thanks!
i normally let mine down to about 10% then just charge it too 100%
treebill said:
i normally let mine down to about 10% then just charge it too 100%
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Right, but do you know if this is actually the way to go with the Li-Po battery or are you, like me, just winging it?
When i first got my phone i let it run down till it asked for the charger, then left it on charge over night.
I did this for the first 3 or 4 times as i found this yields the longest battery life, since then i charge every 2 days regardless what percentage is left always over night though.
Going to leave it tonight & see if it will go till tomorrow night, its been off charge since 7am on Friday morning so far & is still on 46% a total of 39 hours so far.
anoniemouse said:
When i first got my phone i let it run down till it asked for the charger, then left it on charge over night.
I did this for the first 3 or 4 times as i found this yields the longest battery life, since then i charge every 2 days regardless what percentage is left always over night though.
Going to leave it tonight & see if it will go till tomorrow night, its been off charge since 7am on Friday morning so far & is still on 46% a total of 39 hours so far.
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You get two days on a charge? Are you a wizard? Although, having just got the phone (and possessing the patience of a 5 year old), I've done a lot of start-stop charging, which I suspect isn't optimal.
I'll try to refrain from trickle charging for a while, see how much difference it makes. Thanks.
Another battery charging thread? Just plug in the damn phone! It will take care of the rest.
Sent from my SGH-I777 using xda premium
I have noticed that the battery does drain in strange amounts.
I have my wifi & gps on constantly, my phone went for 2 days 5 hours & i received a text at which point the phone was at 34% battery.
The phone was put back in stand by & the phone went totally flat in the next 4 hours, this i find strange as over night in stand by it only uses 1 - 2%.
There is obviously a bug in the way the phone reports its battery state, by my reasoning this must be some 10 - 15% lower than what it is reporting.
It does seem to have some difficulties reading the battery level correctly. I've noted a couple of times that it shows a significantly higher charge level (+5-7%) after a reboot. Which is hardly likely to recharge the battery. (Unless I got me one of those perpetuum mobile, in which case, yay!)

Battery and heat

I owned the galaxy S9 (dual sim - 128gb - exynos) since july, my battery doesn't last a whole day, all I get is 4-4.5 hours of SOT. I installed phone info for samsung from play store and checked the battery status, it says that battery health is 91.37%.
And my phone is warm most of the time, not extremely hot, just a little bit. Is it normal? Or my phone has a problem?
jamil aboudaher said:
I owned the galaxy S9 (dual sim - 128gb - exynos) since july, my battery doesn't last a whole day, all I get is 4-4.5 hours of SOT. I installed phone info for samsung from play store and checked the battery status, it says that battery health is 91.37%.
And my phone is warm most of the time, not extremely hot, just a little bit. Is it normal? Or my phone has a problem?
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Same as mine, feel warm all the time, even not using it. 3hours+ SOT per full charge. Bought it on end of June 2018. After 100 cycles phone info shows 86.53%.
zeanong said:
Same as mine, feel warm all the time, even not using it. 3hours+ SOT per full charge. Bought it on end of June 2018. After 100 cycles phone info shows 86.53%.
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Don't worry about that, I don't think it can be accurate, mine says 84.97% after 54 cycles, and I'm fairly sure I remember it saying it was only about 90% when it was new, so I'd add 10% onto that %
Will wiping system cache help to decrease heat and improve battery life?
Check for any apps that may be constantly functioning in the background, streaming apps that are not closed, etc. GSam is a good app for monitoring this.
Recently, I am not charging my phone like I was doing before, I mean sometimes I recharge it to 100% when it's at 60% for example, or sometimes I let it drop to 10% or lower. Because of university needs...
But I'm noticing a very bad battery life that it lasts me about 16 hours with 2-3 hours of SOT (I only use whatsapp and open some documents at university).
And my phones gets hot sometimes like I said before.
And sometimes I unplug it and after 2 mins it drops from 100% to 98%. The battery drains too quickly! What's the problem here? (I also notice a higher % for android system usage, like 13% or 16% for example)
PS : I tried wiping cache and I saw some apps running in the background and putted them on "always sleeping apps" except of social media apps. But they still run, I can see this in RAM usage. So don't know what to do.
jamil aboudaher said:
I owned the galaxy S9 (dual sim - 128gb - exynos) since july, my battery doesn't last a whole day, all I get is 4-4.5 hours of SOT. I installed phone info for samsung from play store and checked the battery status, it says that battery health is 91.37%.
And my phone is warm most of the time, not extremely hot, just a little bit. Is it normal? Or my phone has a problem?
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try this: https://forum.xda-developers.com/galaxy-s8/help/guide-hunting-wakelocks-battery-drain-t3697324
wilson620 said:
try this: https://forum.xda-developers.com/galaxy-s8/help/guide-hunting-wakelocks-battery-drain-t3697324
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Thanks bro! But I am asking why I need to do all this stuff to make a flagship phone last me the whole day, my friend's s9 battery lasts the whole day with 6 hours of SOT without disabling apps, or optimizing them. And without putting a dark theme...

Wrong battery voltage readout using AIDA

I have always used AIDA 64 to get information on my phones; recently though I've been using the A70, which should have at least 4400 mAh when fully charged.
In the last few days it never went above 4100 mAh. I did notice that instead of 20/24 h of usage it drop to 17.
I always charge it when it arrives at 15/20% and i never charge it randomly. Also, I've got this phone last month, it is brand new.
Would you guys take it to a samsung repair center to get it looked at?
I'm gonna check if this also happens on my A70 or not. I'll update you later.
marsitown said:
I have always used AIDA 64 to get information on my phones; recently though I've been using the A70, which should have at least 4400 mAh when fully charged.
In the last few days it never went above 4100 mAh. I did notice that instead of 20/24 h of usage it drop to 17.
I always charge it when it arrives at 15/20% and i never charge it randomly. Also, I've got this phone last month, it is brand new.
Would you guys take it to a samsung repair center to get it looked at?
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Mine goes to only 4185. I think Samsung made this so that the battery has more duration before it begins to die, because I remember reading that batteries shouldn't be charged fully because it shortens their lifetime.
Quick report: this morning I left it charging some more after it arrived at 100%. It arrived at 4238 mAh

Battery drops as soon as fully charged

If I have had my Note 10+ on charge all night, as soon as I disconnect it from the charger the next morning the battery drops down to 98% within the first few minutes without me using it.
It seems to last ok the rest of the day as I have around 60% left after 4h sot. I know it's not a big deal but my Mate 20 Pro would sit on 100% for the first couple of hours. It's probably just psychological, but it feels like it lasts longer when it doesn't drop so quickly.
I guess my slight OCD isn't helping which is why I always turn off the battery % in the settings so I can't see what it is, but with the Note, even if you turn it off you still see it every time you pull down the notification panel.
The battery calibration is just a bit off. My recommendation would be to ignore it.
A factory reset should reset the battery statistics.
Battery seems pretty good so far.
Biggenz said:
Battery seems pretty good so far.
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That's Android 9. I'm guessing you haven't upgraded to Android 10 yet? Wonder how's the battery on that
My battery percentage is similar. By the time I get off the pot in the morning, it reads 98%, that's generally anywhere 2-15 minutes in my estimation.
Mine too, I consider it as normal, the rest of the batt lasts as expected
Same here. But rest of the day Usage and percentages are still pretty good.
Sent from my SM-N975U using Tapatalk
to everybody with battery quick drop
this is normal because samsung implemented a new measure of battery security and not let the phone to mantain full charge for a long period of time ,
samsung staff tweeted this 3 months ago

Battery hold from 11% to 0%

Hi all,
occasionally I see my 7 months old Pixel 3a XL can't hold battery power from 11% down. Switches off very fast, abnormally fast. Then if I power it and start it then keeps on restarting until battery level is higher than 5-6%
I use the original charger only. Sometimes it appears, some it does not and I can see it discharges as expected.
I try to keep my battery within 40-100% full and discharge it very rarely to 0%.
Anyone facing those abnormalities? Can't think of connected events - updates, etc ....
Cheers
p.s. after last night happening again, charged the phone from 0% to 86% (phone was off during charge), turned on on 86% and left over night on the shelf. Usually drains 2-3%, this morning it dropped from 86% to 62%. All connections off, nothing unusual shown in the battery usage stats...
TodNex said:
Hi all,
occasionally I see my 7 months old Pixel 3a XL can't hold battery power from 11% down. Switches off very fast, abnormally fast. Then if I power it and start it then keeps on restarting until battery level is higher than 5-6%
I use the original charger only. Sometimes it appears, some it does not and I can see it discharges as expected.
I try to keep my battery within 40-100% full and discharge it very rarely to 0%.
Anyone facing those abnormalities? Can't think of connected events - updates, etc ....
Cheers
p.s. after last night happening again, charged the phone from 0% to 86% (phone was off during charge), turned on on 86% and left over night on the shelf. Usually drains 2-3%, this morning it dropped from 86% to 62%. All connections off, nothing unusual shown in the battery usage stats...
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Click to collapse
That's pretty weird
My 3a xl (about the same age as yours) doesn't use more than 10% max when left overnight. Are you using AOD or anything?
Sent from my Pixel 3a XL using XDA Labs
@Skittles9823 nothing beside stock Android and apps that I've used forever. Strange is that it's occasional - also occassional is initial drain from 100% to 92%.
Maybe its time to flash it - nothing suspicious is shown in batt stats
I use the fast charger that came with it. Not sure how it affects battery life long term. I try to keep it 100% to 40% usually and not charge it if not necessary..
TodNex said:
@Skittles9823
I use the fast charger that came with it. Not sure how it affects battery life long term. I try to keep it 100% to 40% usually and not charge it if not necessary..
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I think popular wisdom is that both fast charging and in particular charging to 100% are not kind to the battery's longivety. Divided opinion about the effect of discharging to low percentages. Personally I charge to between 70 and 80% unless I know I'm going to need more capacity. 3a XL has a bigish battery, which helps. I recharge most nights but only to 70-80%. End of day I usually end up between high 40's and low 30's charge.
I manually set all apps I don't actually need to run in background to 'restricted' background use.
I charge mine up to a 100% often, when using it heavy.. I never heard of charging a battery to 100% being bad for it, unless you believe everything that is told or should I say sold to you.. Sounds like a faulty battery. If still under the 1 yr usual warranty I would have it replaced. I have drained mine down to less than 20% and still never experience any issue that OP state.
doubledragon5 said:
I never heard of charging a battery to 100% being bad for it
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Some research references in here
https://accubattery.zendesk.com/hc/en-us/articles/210224725-Charging-research-and-methodology
https://accubattery.zendesk.com/hc/...-Cycle-Life-Modeling-of-Lithium-Ion-Batteries
Also Apple have actually introduced a feature to stop/postpone 100% charging when the phone thinks it's not required. Would be good if we had similar/more control for Android.
https://support.apple.com/en-us/HT210512
WibblyW said:
Some research references in here
https://accubattery.zendesk.com/hc/en-us/articles/210224725-Charging-research-and-methodology
https://accubattery.zendesk.com/hc/...-Cycle-Life-Modeling-of-Lithium-Ion-Batteries
Also Apple have actually introduced a feature to stop/postpone 100% charging when the phone thinks it's not required. Would be good if we had similar/more control for Android.
https://support.apple.com/en-us/HT210512
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I'm still not sold on the idea that charging a battery to 100% is bad.. But thanks for those links.
doubledragon5 said:
I'm still not sold on the idea that charging a battery to 100% is bad.. But thanks for those links.
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It's actually true. Lithium Ion batters degrade over time, the speed of which, depends on the amount of battery cycles they go through (0-100% and vice versa). Others have done the research and the math and found that generally a 20% to 80% and vice versa charge seems to be the best for longevity.
Personally I charge to 100 but try to charge my phone when it gets to 20-30%.
Sent from my Pixel 3a XL using XDA Labs
doubledragon5 said:
I'm still not sold on the idea that charging a battery to 100% is bad.. But thanks for those links.
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Evidence and research is there. Of course you don't have to believe it. It's your phone, your battery, your money
WibblyW said:
Evidence and research is there. Of course you don't have to believe it. It's your phone, your battery, your money
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So very true my phone my money. In all my years of using cell phones, I think I have actually replaced a battery once because it went bad.
Thank you all for the links and the inputs!
One more symptom - when is very low like this morning - 1% and put it in charger - phone shuts off.
I will keep the battery in 40-80% for the future and limit the drain below 40%. I tried to charge it slow with USB - took me like 6-7 hours...
How long it takes you from zero to 100% with the stock charger - looks very fast to me - 0% to 67% in 35 mins
I personally tried to research and could not find what is worse for these batteries - number of cycles (obvious less when used below 40%) or the low capacity usage ?
TodNex said:
Thank you all for the links and the inputs!
One more symptom - when is very low like this morning - 1% and put it in charger - phone shuts off.
I will keep the battery in 40-80% for the future and limit the drain below 40%. I tried to charge it slow with USB - took me like 6-7 hours...
How long it takes you from zero to 100% with the stock charger - looks very fast to me - 0% to 67% in 35 mins
I personally tried to research and could not find what is worse for these batteries - number of cycles (obvious less when used below 40%) or the low capacity usage ?
Click to expand...
Click to collapse
The included charger is a fast charger, good for headlining how fast it charges, not so great for the battery. I just use a 'standard' (Anker) USB charger.
Jury's out on if deeper discharge is bad, but it's the number of complete cycles (0-100% counting as 1). So 40 - 80% is 0.4 of a full cycle, and you're not stressing the battery so much by taking it to 100%. Many folk here replace their phones frequently enough not to be bothered by all this - if they sell it when 20% of the battery capacity's gone, that's fine.
I've observed the behaviour and few things made me question myself...one time I can see 13% battery and palying Youtube just shutdown the phone. Put it into charger and started showing 4% as initial charge.
There was another time when using Viber video shutdown in 23% but can be overheat or software bug.
I try to keep it these days above 40% charge but still use the supplied charger till I buy new slower one.
TodNex said:
I've observed the behaviour and few things made me question myself...one time I can see 13% battery and palying Youtube just shutdown the phone. Put it into charger and started showing 4% as initial charge.
There was another time when using Viber video shutdown in 23% but can be overheat or software bug.
I try to keep it these days above 40% charge but still use the supplied charger till I buy new slower one.
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The good news is that this phone seems to be pretty easy to repair and a battery replacement could very well be a good option for you, especially since you wouldn't be compromising any water resistance or anything

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