Question Z Fold 3 battery life discussion

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bmwjavier45

Member
Feb 22, 2021
23
3
I have never had a phone with a battery as bad as this one. Barely 17 hours, all the time on Wi-Fi 6, and it doesn't even get to 4 hours of screen on time. A shame. I will have to sell it.
 

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dezborders

Senior Member
I have never had a phone with a battery as bad as this one. Barely 17 hours, all the time on Wi-Fi 6, and it doesn't even get to 4 hours of screen on time. A shame. I will have to sell it.
Saldy I agree 100%. Also my high hopes for improved battery life with Android 12 upgrade did not come to pass.
Battery life is the single biggest thing Samsung need to work on before they release the Fold4 in 6 months.

(Battery life is also dismally poor on the Z Flip 3)

... it's almost as if Samsung is deliberately sabotaging foldables so that they NEVER reach mainstream sales figures.
 

Batfink33

Senior Member
Apr 8, 2013
4,116
1,217
Google Pixel 6 Pro
Samsung Galaxy Z Fold3
Saldy I agree 100%. Also my high hopes for improved battery life with Android 12 upgrade did not come to pass.
Battery life is the single biggest thing Samsung need to work on before they release the Fold4 in 6 months.

(Battery life is also dismally poor on the Z Flip 3)

... it's almost as if Samsung is deliberately sabotaging foldables so that they NEVER reach mainstream sales figures.
Is it not just that they're trying to make it as thin as possible? Bigger battery means thicker and heavier. I thihk it'll be sorted eventually with iterations of the phone but the Fold 3 on the big screen destroys the battery.
 

dezborders

Senior Member
Is it not just that they're trying to make it as thin as possible? Bigger battery means thicker and heavier. I thihk it'll be sorted eventually with iterations of the phone but the Fold 3 on the big screen destroys the battery.
Yes that's why Samsung reduced battery size - smaller and lighter device

But what use is a £1600 device if it can't last a full day on a 100% charge ?

(P.S. It's still big and heavy compared to "normal" phones so what was the point in reducing battery size and thickness )
 
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Batfink33

Senior Member
Apr 8, 2013
4,116
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Google Pixel 6 Pro
Samsung Galaxy Z Fold3
Yes that's why Samsung reduced battery size - smaller and lighter device

But what use is a £1600 device if it can't last a full day on a 100% charge ?

(P.S. It's still big and heavy compared to "normal" phones so what was the point in reducing battery size and thickness )
Yeah I don't disagree. FWIW, my P6P wasn't lasting the day either and I charged it at roughly the same point as I do the Fold 3 but I mostly use the small screen during the day. The s21u I had was much better though and lasted the day. I could get a days use using the outer display but no way using the big display.
 
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m_w_clarke

Senior Member
Feb 17, 2011
54
16
Horses for courses, I guess.

Very very rarely had battery issues with my phone. But, it depends on your use case. I'm fortunate to have full strength 4g signal in 90% of places. I've turned off 5g as for me, the improvement was negligible. Working from home, most times its connected to my home WiFi-5.

Being in the UK, the screen brightness and ambient temperature are also both low which I guess saves some juice.

I get easily a full day, with around 30-40% left in the tank of a typical day.

BUT if I do venture to a place where signal is sub optimal, then I do see a faster battery drain.
 

dezborders

Senior Member
I get easily a full day, with around 30-40% left in the tank of a typical day.

BUT if I do venture to a place where signal is sub optimal, then I do see a faster battery drain.
Oh I wish!!! lol (30% battery remaining at end of my day)

I live in an area with only 1 bar of signal indoors, but as I WFH I am on Wifi almost constantly.
Perhaps even on WiFI, the low signal still causes me excess battery drain whilst "hunting" for a better signal constantly.
 
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Batfink33

Senior Member
Apr 8, 2013
4,116
1,217
Google Pixel 6 Pro
Samsung Galaxy Z Fold3
Oh I wish!!! lol (30% battery remaining at end of my day)

I live in an area with only 1 bar of signal indoors, but as I WFH I am on Wifi almost constantly.
Perhaps even on WiFI, the low signal still causes me excess battery drain whilst "hunting" for a better signal constantly.
That's interesting. As an example, I took it off charge this morning at 11am. I use the max charge of 85%. Now at 9.35pm I'm at 15%. I mostly use the small outer display though during the day with it opened for only maybe 30min. Do you use the big display? If I used that, the battery would be gone in a couple of hours. I don't find the battery life great but it's not causing me any problems specifically.
 

dezborders

Senior Member
That's interesting. As an example, I took it off charge this morning at 11am. I use the max charge of 85%. Now at 9.35pm I'm at 15%. I mostly use the small outer display though during the day with it opened for only maybe 30min. Do you use the big display? If I used that, the battery would be gone in a couple of hours. I don't find the battery life great but it's not causing me any problems specifically.
I can get 4 hours of SOT using a mixture of inner and outer screens

However I was seeing 7 hours SOT when I had a Fold2 ... Big drop !
 

Batfink33

Senior Member
Apr 8, 2013
4,116
1,217
Google Pixel 6 Pro
Samsung Galaxy Z Fold3
Yes to both .. and from what I have read online the SD888 is much more hungry for battery power than previous CPU (aNd the latest SD 8Gen1 even moreso)
Ive went from the s21u to the P6P and then to the Fold3. Tbh I wish I'd never sold my s21u because it was probably the best of all of them and I would've upgraded to the s22u now. The P6P battery was pretty awful and the phone overheated on 5g for me so getting to the Sd888 was a nice change after that but the Fold3 isn't perfect at all. I'll keep my options open as to what to get next but hopefully Samsung addresses the battery problems on the F4.
 

dezborders

Senior Member
Ive went from the s21u to the P6P and then to the Fold3. Tbh I wish I'd never sold my s21u because it was probably the best of all of them and I would've upgraded to the s22u now. The P6P battery was pretty awful and the phone overheated on 5g for me so getting to the Sd888 was a nice change after that but the Fold3 isn't perfect at all. I'll keep my options open as to what to get next but hopefully Samsung addresses the battery problems on the F4.
I had an s21u 16/512 around November and I managed 9hrs sot
Those were the days lol
 
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ghassan haddad

Senior Member
Apr 4, 2010
442
75
That's interesting. As an example, I took it off charge this morning at 11am. I use the max charge of 85%. Now at 9.35pm I'm at 15%. I mostly use the small outer display though during the day with it opened for only maybe 30min. Do you use the big display? If I used that, the battery would be gone in a couple of hours. I don't find the battery life great but it's not causing me any problems specifically.
wow dude, why would you buy a Fold if you're gonna use that tiny screen most of the time?
 
Oct 20, 2021
139
25
If your battery is draining fast, reboot your phone. Something in the system seems to start to drain it at times, as it can't be found on the app list in the battery use section. Like today, I noticed that it was already down to 67% way earlier than it should be, so I rebooted it, and hours later, it was only at 50% as usual (with use, obviously).
 

whatwhatster

Senior Member
Oct 1, 2013
68
21
My battery got better generally, I always do 2 days with it and a combo use i
Outer/inner screen. I never use battery saving.

Screenshot_20220223-193744_GSam Battery Monitor Pro.jpg
 

Nastrahl

Senior Member
There is a learning phase for the Z Fold 3 to learn how you use it. Once the battery monitor AI has learned your usage pattern, the battery life should get much better
Plot twist : it does not.

I do have to charge it twice a day. I never understood how do the users do to have 2 days of battery or 8h+ of SOT with actually using it with a few apps and just not leaving idling in an black screen with every sensors off and apps uninstalled.
 

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  • 1
    I'm a heavy user and the phone battery lasts good enough for me. However, one of my apps lately they updated it and it is killing the battery for no reason, like it is in the background except for a few minutes a day, and using as much as 40% battery. I can't delete it because it is for a medical device I need all day, so they just need to fix the app fast (I've talked to them already, and the app also crashes often). So, if your battery is draining, check the battery section of the settings to find out which app it is.
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    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.
    4
    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.