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Question Z Fold 3 battery life discussion

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blackhawk

Senior Member
Jun 23, 2020
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Each to there own mate ... We live in a democracy so patch or run on outdated os your choice :)

Life is moving faster and faster paced all the time and hacks and vulnerability are being exploited more and more each day

It's no longer a question of WILL I be hacked it's WHEN will I be hacked

Nobody on this forum will thank you for advising them to disable OTA when their bank account is emptied because they didn't apply security updates regularly

Back to the OP topic tho battery life is poor on the Fold3 and for me it's bad ebought that I might give up on Samsung's foldables and go back to candy bar fornat. I am old school, my first phones were Nokia 3xxx range with 5 to 7 days battery. I need 1 full days usage from my smartphone - and using out of the box settings - nothing else is acceptable for the huge money manufacturers charge these days .

Let's agree to disagree mate :)

I'm a pragmatist; I use what works best. Hype doesn't get the job done.

Redundant backup for everything, not just data.
My account$ are fully insured.
The user themselves are the most likely to load or download malware... weakest link.
Many don't even have their critical data backed up redundantly. Some data can't be replaced.

A constantly changing platform means malware is harder to spot by behavior. If I can't ID/correct a glitch, it means reload time, zero tolerance.
Not saying it's impossible to be compromised but it's highly likely unless you do something stupid.
A reload costs me about half a day to get back 100% unless the SD card gets hit too then add 4-6 hours to the reload.
Pie is high enough to stop the worst rootkits that require a reflash.
 
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jeromepearce

Senior Member
Jun 7, 2007
751
157
Mackay
www.processmapping.com.au
Each to there own mate ... We live in a democracy so patch or run on outdated os your choice :)

Life is moving faster and faster paced all the time and hacks and vulnerability are being exploited more and more each day

It's no longer a question of WILL I be hacked it's WHEN will I be hacked

Nobody on this forum will thank you for advising them to disable OTA when their bank account is emptied because they didn't apply security updates regularly
Unless you are connecting to dodgy free wireless, installing dodgy apps or clicking on dodgy links, you are very unlikely to get hacked. I've been using computers on the net very intensively for 25 years, and smartphones intensively on the net for 16 years, without a single hack or even a virus.

Most of my problems have been caused by upgrading the OS or apps, so I avoid it most of the time until updates are proven not to cause problems.
 

dezborders

Senior Member
Jun 23, 2010
1,190
180
Glasgow
Samsung Galaxy S21 Ultra
I'm a pragmatist; I use what works best. Hype doesn't get the job done.

Redundant backup for everything, not just data..
A reload costs me about half a day to get back 100% unless the SD card gets hit too then add 4-6 hours to the reload
All power you you mate

99% of ppl are not so organized as you are and for them prevention is better than cure

One question tho if your os is 1.5 years old how can you be using Z Fold3? ZF3 can't be running older than 3 months os and apps?
 
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Nsoo

New member
Sep 18, 2014
3
1
Disable all power management in Device Care.
Clear logs in Device Care>storage as needed.
Clear data in Google play Services
Clear system cache
You can package disable Playstore when not needed.
You can temporarily Google play Services but Gmail needs it to open. Disable Find my Device as Administrator in Security if Google play Services disable button is greyed out.

A factory reset will likely solve nothing unless you did a recent major firmware upgrade. Find the root cause(s) or they will just reoccur after the reset.
Thanks so much for getting back to me!
1) Not sure what you mean or to do?
2)done from the apps menu and then device manager
3) Done that already with no change.. I even lost !y galaxy watch 4 and had it to set it up again.
4) done
5 and 6 not sure how to do it but I need Gmail as I'm using it

And.. few hours before your message as I was a bit desperate did a factory reset and the issue is still there and maybe even worst.. https://ibb.co/ck2ZZLM .. really don't know what to do anymore
 

blackhawk

Senior Member
Jun 23, 2020
7,128
2,650
All power you you mate

99% of ppl are not so organized as you are and for them prevention is better than cure

One question tho if your os is 1.5 years old how can you be using Z Fold3? ZF3 can't be running older than 3 months os and apps?
I'm running 2 N10+'s. So I can't predict exactly how that hardware or UI will respond on the Fold. Samsung tends to use similar power management though and have the same issues.
The only reason I ended up with one running on Android 10 was its manufactured date, oops🤣
However it was interesting to compare and use the 2 OS versions side by side with the same hardware and 3rd party app loads.

It could be that the Fold updates will bring fixes to bugs in Android 11. Samsung has heavily modified it as they did with Android 10.
I probably roll the dice for those.

Jumping to 12 though may bring more bugs than fixes. More than once I've seen Samsung firmware and app updates break the phone or app completely over the years🤣
So I tend to be very conservative especially if things are running well.
It's always safer to let others be the lab rats...
 

dezborders

Senior Member
Jun 23, 2010
1,190
180
Glasgow
Samsung Galaxy S21 Ultra
I'm running 2 N10+'s. So I can't predict exactly how that hardware or UI will respond on the Fold. Samsung tends to use similar power management though and have the same issues.
The only reason I ended up with one running on Android 10 was its manufactured date, oops🤣
However it was interesting to compare and use the 2 OS versions side by side with the same hardware and 3rd party app loads.

It could be that the Fold updates will bring fixes to bugs in Android 11. Samsung has heavily modified it as they did with Android 10.
I probably roll the dice for those.

Jumping to 12 though may bring more bugs than fixes. More than once I've seen Samsung firmware and app updates break the phone or app completely over the years🤣
So I tend to be very conservative especially if things are running well.
It's always safer to let others be the lab rats...
Bugs are inevitable in a major OS update

However my s21u is smooth as butter on android 12 and I can't find ANY bugs so far and I'm getting around 10hrs SOT on s21u from a full charge and all default settings / 120hz adaptive refresh etc

So I'm kind of crossing my fingers battery life on Fold3 improve with android 12 update
 
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blackhawk

Senior Member
Jun 23, 2020
7,128
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Bugs are inevitable in a major OS update

However my s21u is smooth as butter on android 12 and I can't find ANY bugs so far and I'm getting around 10hrs SOT on s21u from a full charge and all default settings / 120hz adaptive refresh etc

So I'm kind of crossing my fingers battery life on Fold3 improve with android 12 update

It very well might improve.
Samsung had to heavily modify the UI for it to work with 10 and certainly for 11/12. It was no small task. Lol, Samsung's UI was already the most tricked stock UI to begin with.
Just compare a Samsung running on 11 or 12 to a Pixel. It's hard to believe it's the same OS.

Counterpoint to that is to get while the getting is good. If you think the Fold series is not viable now's the time to get top dollar selling it. If Samsung drops the Fold, it will be a dead end with more limited future support including firmware.
Samsung hasn't released sales numbers for the Fold 3 apparently but says it's the best selling Fold ever.
You can tell I'm heavily biased by my weapons of choice, the N10+ running on 9/10. Draw your own conclusions based on what you want and observe in the market. Go from there.
 

WZDISMINE

Member
Jan 19, 2021
32
6
I have now 3 fold, regarding the price, this phone its fantastic amazing. But, It's gift for my wife 😇. For my self, I need something next level: (Battery 🔋)
 

pulyka

Senior Member
Apr 4, 2007
141
3
Budapest
Hey, I have the same battery issue.. samsung says 4400 mah, its nowhere near. However its slowly going up as I charge it more.
This app has been accurately working for my older phones in the past. Is it possible that samsung does not allow us to fully charge this battery to 100%? (Like electric cars - to save wear cycles...)
 

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blackhawk

Senior Member
Jun 23, 2020
7,128
2,650
Hey, I have the same battery issue.. samsung says 4400 mah, its nowhere near. However its slowly going up as I charge it more.
This app has been accurately working for my older phones in the past. Is it possible that samsung does not allow us to fully charge this battery to 100%? (Like electric cars - to save wear cycles...)
Pretty typical for Accubattery. It's all relative... more a general indicator than an absolute.
If it makes you feel better set the battery capacity at 3832 mAh.
Now you have 100%... I do this on my N10+'s🤣

If the top charge voltage is near the cell's nominal rated voltage than it's fully charging it.
It's a $20 battery, not a $5G one... you can limit the top charge to 80% to extend its service life though if you wish.

When it reaches about 3200 mAh I will replace the battery. The battery is rated at 4300 mAh but Accubattery never saw it as such.
Whatever🤣
Screenshot_20211206-154321_AccuBattery.jpg
 

Allesa

Senior Member
Mar 9, 2012
366
155
My question and point was why is F3 25% worse battery life than F2...

F3 has SD888 which is supposed to be more power efficient over previous Snapdragon CPUs
F3 has LTPO screens which are supposed to use less power compared with older screen tech
All other functions (5G, GPS, etc are identical) between F2 and F3.

So why does a 10% smaller battery give 25-30% less SOT?
Its a source of frustration on an otherwise awesome device..

I am split 50/50 between selling my S21 Ultra and keeping my new F3... or selling F3 and getting a whole day (and more) from the S21U
Snapdragon 888 is not more power efficient than 865. Google it. It's a power hungry chipset that has been heavily criticized this year. It's faster yes. But cant sustain the maximum performance for longer period of time, only short bursts. Power hungry --> heat --> thermal throttling.
 

dezborders

Senior Member
Jun 23, 2010
1,190
180
Glasgow
Samsung Galaxy S21 Ultra
Snapdragon 888 is not more power efficient than 865. Google it. It's a power hungry chipset that has been heavily criticized this year. It's faster yes. But cant sustain the maximum performance for longer period of time, only short bursts. Power hungry --> heat --> thermal throttling.
I stand corrected ;) However I am not a power user and I dont play games so sustained max performance wont be a problem for me.
I have now sold my ZFold3 as its incapable of running a full day on one battery charge for "normal" usage. Maybe I will try Z Fold4 in 2022
 

Allesa

Senior Member
Mar 9, 2012
366
155
Yup.. Sold mine too a month ago too. Checking out this thread to see if somehow magically Samsung found the magic sauce to reduce 888's battery consumption but apparently not. For a device screaming to be used 24/7 it doesn't have the juice to do so
I stand corrected ;) However I am not a power user and I dont play games so sustained max performance wont be a problem for me.
I have now sold my ZFold3 as its incapable of running a full day on one battery charge for "normal" usage. Maybe I will try Z Fold4 in 2022
 

blackhawk

Senior Member
Jun 23, 2020
7,128
2,650
Snapdragon 888 is not more power efficient than 865. Google it. It's a power hungry chipset that has been heavily criticized this year. It's faster yes. But cant sustain the maximum performance for longer period of time, only short bursts. Power hungry --> heat --> thermal throttling.

The 888 has a 5mm form factor vs fat 7mm.
It likely is more efficient.
It's not suppose to run wide open except for brief time periods.

The elephants in the room...
Variable rate displays and 5G come with higher power consumption.
AMOLED displays can use a lot of battery and look at all those square inches of displays.
The physical design of the phone, all that space.
Longer conductor pathways means higher resistance.
Android 11, it's a hog. Burning extra cpu cycles for scoped storage.
 

Allesa

Senior Member
Mar 9, 2012
366
155
The 888 has a 5mm form factor vs fat 7mm.
It likely is more efficient.
It's not suppose to run wide open except for brief time periods.

The elephants in the room...
Variable rate displays and 5G come with higher power consumption.
AMOLED displays can use a lot of battery and look at all those square inches of displays.
The physical design of the phone, all that space.
Longer conductor pathways means higher resistance.
Android 11, it's a hog. Burning extra cpu cycles for scoped storage.
In theory yes. But in practice no. Just google it. This one article is just an example. Read first paragraph. It is quite well known til now 888 tends to overheat and burn through juice more than 865.

How do I know? Not just from articles. This is my channel. Not an english speaking channel tho. Reviewed enough SD888 phones and i'll take 870 or even 865 anyday.
 
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blackhawk

Senior Member
Jun 23, 2020
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In theory yes. But in practice no. Just google it. This one article is just an example. Read first paragraph. It is quite well known til now 888 tends to overheat and burn through juice more than 865.

How do I know? Not just from articles. This is my channel. Not an english speaking channel tho. Reviewed enough SD888 phones and i'll take 870 or even 865 anyday.
Perhaps. Lack of adequate heat sinking is likely the real issue. Prolonged high intensity gaming on a phone like this is unrealistic*. There are physical limits to how much power you can use and still safely dissipate the cpu's waste thermal energy. It's not just the chipset; Li's are stressed when subjected to prolonged high current drain rates.
If there actually is an issue a future instruction set update will likely correct it.
The processor is the least of this phone's issues if it's properly heat sinked.


*on my N10+'s I limit games to 10-20 minutes before giving it some rest time. Charging isn't rest time, doing a low demand activity like using the browser is ok. I do the same when streaming vids although the usage interval is increased. That's more to protect the battery than concerns about overheating the chipset.
 

dezborders

Senior Member
Jun 23, 2010
1,190
180
Glasgow
Samsung Galaxy S21 Ultra
Yup.. Sold mine too a month ago too. Checking out this thread to see if somehow magically Samsung found the magic sauce to reduce 888's battery consumption but apparently not. For a device screaming to be used 24/7 it doesn't have the juice to do so

Ditto... I will continue to review this thread in the vain hope that the (now delayed) Fold3 Androind 12 Upgrade solves the poor battery life situation. I can always pick up a 2nd hand F3 on eBay or Facebook if this wish comes true. (But I wont hold my breath).
 

dezborders

Senior Member
Jun 23, 2010
1,190
180
Glasgow
Samsung Galaxy S21 Ultra
How do I know? Not just from articles. This is my channel. Not an english speaking channel tho. Reviewed enough SD888 phones and i'll take 870 or even 865 anyday.

I have to admit I now regret selling my Fold2 in September and upgrading to Fold3 lol.
I will sit on the fence until Android 12 update has been out a few weeks to assess if its any better in battery life then decide.
 

dezborders

Senior Member
Jun 23, 2010
1,190
180
Glasgow
Samsung Galaxy S21 Ultra
In theory yes. But in practice no. Just google it. This one article is just an example. Read first paragraph. It is quite well known til now 888 tends to overheat and burn through juice more than 865.

How do I know? Not just from articles. This is my channel. Not an english speaking channel tho. Reviewed enough SD888 phones and i'll take 870 or even 865 anyday.
Just one side comment... I ran with Mi 11 12/256 as daily driver for a month and that has an SD888 and got 8-9 hrs SOT.
Ditto for an Oppo Find X3 Pro... SD888... 8+ hours SOT.
Also worth pointing out i am NOT a gamer and I dont take 100s of pics daily so use camera lightly.

With the above experience in mind I am not 100% convinced that SD888 is the *main* casue of poor battery life on the Fold3.
... and gives me hope that Samsung can "fix" the issue in software. ... fingers crossed for Android 12.
 
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Top Liked Posts

  • 1
    Do people here limit the charge to 85%? I want to to keep the battery safe long term but I really need that extra 15% of charge!
    No, I'd much rather use my phone as needed than possibly worry about the battery being a little less in a few years. I didn’t buy the phone to use only 85% of the battery. As it is, I typically plug it in no later than when it gets to the 15% low-battery warning mark since the last 15% always dies super fast on phones for some reason, so I'm already losing 15% of the battery use.
    1
    I used to change phones about every six months or so for years............but usually keep them for a couple of years since the Note-5 came out. So I feel like battery issues are never a problem. I will say the first month I had it, was having drainage issues............but after some tweaks, it's been doing well (got the phone at first release). Hoping the ZFold4 is even better because might trade for that, definitely if they put a 5000mah battery in it and include the stylus, but not holding my breath.
  • 1
    The 888 has a 5mm form factor vs fat 7mm.
    It likely is more efficient.
    It's not suppose to run wide open except for brief time periods.

    The elephants in the room...
    Variable rate displays and 5G come with higher power consumption.
    AMOLED displays can use a lot of battery and look at all those square inches of displays.
    The physical design of the phone, all that space.
    Longer conductor pathways means higher resistance.
    Android 11, it's a hog. Burning extra cpu cycles for scoped storage.
    Hopefully android 12 will back off a tad and with a good/great reception 5g doesn't seem to be an issue here in Savannah.. I've debloated my crapware and turned off all the background running apps that I don't want running when I'm not using them. I've also been very posesive about my location services and what apps are running there that I really need. I am NOT utilizing any "power saving mode" as I prefer to do that manually and several things that mode shuts off I want on... Like the 120 hz screens.. With this researchable effort I've been able to get a NO PROBLEM battery for this phone with pretty much power usage. 5 hours screen time easy. Maybe other people have "bad batteries?"
    1
    I've had the Galaxy Z Fold 3 about 72 hours now , slightly concerned about battery life when returning to work/life balance next week. Granted media consumption will reduce but still 'Interested' to see how it copes with a 6 til 6 day. .
    If you've only had it 72 hours the software hasn't yet competed optimisations and settled. Mine took a good week or two to bed in.
    After this I get a good working day out of it, whilst streaming Spotify for most of it. At the end of a "heavy" day, I usually have 30-40% left
    Hope that gives you some insight.
    1
    That's great to hear - thanks for the heads up!

    Spotify is easily my most used app , with a similar use case to yours.

    Do you put apps to sleep or use any other battery saving methods? I use dark mode for aesthetic reasons above battery saving but that's all I do really
    I don't use any optimisations really. Dark mode and 120hz refresh. I let the OS put unused apps to deep sleep when it notifies me it's found some I haven't used in a while. You should start to see this notification after you've had your phone for a few weeks.
    1
    I just wanted to know what to expect during upgrade from ver 11. Do i need to make some adjustments after rhe upgrade?
    Here's a link to all we know about the battery life on Android 12 and what, if any, battery optimization steps we've taken to get decent battery life :

    1
    Do people here limit the charge to 85%? I want to to keep the battery safe long term but I really need that extra 15% of charge!
    Don't limit the battery if you need that extra 15%.

    Basically, you can keep the battery life as new(ish) by limiting yourself to using only between 20% and 85%. That means you get 65% of the true battery life. The benefit? You get to keep the battery life as it was instead of it degrading. So if you reduce your battery usage to 65%, you will stop the battery degrading to 65% of its original capacity over a couple of years. That's right, intentionally reducing your battery usage will prevent it degrading to that battery usage, after a couple of years. The benefits are absolutely zero, in fact are negative.

    Having said that, when I'm home, i limit the charging to 85%, because I just don't need that additional 15%. If I'm going out, I will charge to 100% if I'll need extra life. I'm pretty sure that I'll never see the benefits of this during my ownership of the F3, but I don't like waste so I do this anyway.

    You may notice that the charging above 85% is deliberately slowed anyway, so it protects the battery to some extent.

    TLDR:
    Don't bother.
  • 6
    This happens with every release of every new phone. It always takes a few days for it to settle as it's downloading apps, settings, updates, etc. It's WAY too early to compare battery life. Give it a week.
    4
    please, for god sake how did you do it. just tell me already
    Lol... Just disable or uninstall all unused apps, turn off Google Discover & Samsung Free (the swipe right on homescreen thing), disable Google (the app, not account syncing) and Google Assistant, turn off Bluetooth/NFC/GPS until you need it, use a black theme, turn off unnecessary notifications, error reporting, and feedback, use static wallpaper, stop app auto updates and auto refresh (weather, stocks, etc), turn off always-on-screen.
    I don't do this, but for even more battery use 96hz or 60hz and turn off vivid screen mode.
    4
    WhatsApp has been running for 25 mins and eaten ~30%? You have something deeper going on there it looks like.
    3
    Digital wellbeing is a battery eating feature itself. Turn it off and you will get more battery time.
    3
    Give it time to take a calibration and you to stop using your device not in the muscle memory you and the phone will develop.
    Then they'll push a firmware upgrade that destroys all that hard work you and your new fold put in getting to know one another.