Question Asus zenfone 8 , I purchased a new Asus zenfone 8 dual SIM 2weeks ago . But the battery life is just shocking. Had anyone have any thoughts on this ?

[batjon]

So, having used a few days now it has suddenly got much better. I'm off charge since 7am and am writing at 4pm and I'm at 80%. Not massive usage - 1 hour screen time with a little Pokémon go in between which seems pretty decent to me. I've disabled 5g, have screen on auto refresh rate and running latest firmware. I do wonder if low signal strength causes disproportionate power drain, the office saw me down to 30% by mid day work virtually no usage at all.

I suspect it's the searching for signal. My office is the same (with an old phone. I'm now work from home) and it would rinse my battery with barely any signal.

 

[majorwedgy]

Lol, I'm getting about half what you guys are complaining about. Have to say, given the six is more efficient and the battery larger, the battery life is incredibly underwhelming compared to my p30.

 

[Taza99]

4h 20min to drain 50%, just disabled gps and set to durable

 

[dron39]

and set to durable

Set what? Do you mean battery mode?

 

[5tormChild]

Be sure to let your battery deplete completely from time to time, as the battery gauge seems to be misalligned a bit!

I've installed AccuBattery Pro on my ZenFone 8 just like on any of my Android devices, and when it had 2% left (which seems to be scary, isn't it?), I've decided to let it run completely out of juice, so I've started YouTube, and when the battery was on 1%, that 1% meant another 100+ minutes of video watching, and another 500mAh of battery, which wasn't present by default.

Now I have over 3.600mAh of battery in my ZF8 according to AccuBattery, but most probably it will take another few rounds to "format" the battery and recalibrate it.

Having the battery mode on "Durable" also can help to prolong battery life, of course.
So far so good, I love my ZF8, it's everything I wanted after carrying my SIM card in my Unihertz Jelly 2, and carrying my ROG Phone 3 with me to be able to use WhatsApp for a longer time...

 

[Kemez]

Damn! I thought I'd deplete the battery just to make sure. And i couldn't do it! I run yt with max resolution and 60fps AND stadia at the same time on split screen for over an hour and got from 20% to 2% on full brightness and everything turned on (sync, gps, wifi and mobile, high performance mode).

I am now the 19h since charge and 5h SOT. Actually i get the impression that the highest mode is more energy efficient than dynamic and durable. Also leaving all apps hanging in the background doesn't do much.

Definitely the battery can do the job. We just don't know how to set it up

 

[Harthouse]

Finally!!!

 

[majorwedgy]

What you do to get that run time

 

[Harthouse]

Sistem modes: Durable
Refresh rate: Auto
5G Network: Off
NFC: Off
Location: Off
Automatically sync app data: Off
AOD: Off
Adaptive brightness: On
Adaptive Battery: Off
Background management: Off
Double tap to wake: Off

I leave the battery to discharge to 1%. When charging the battery, I turn on Airplane mode. It always charging to 100%. Maybe this will mean something to someone?

Ane one important thing... I'm using 2 sim!

 

[Kemez]

From my experience the Durable mode doesn't give me more juice than Dynamic.
I confirm that disabling location improves the time.
I also have set 90Hz instead of Auto and I don't know which one is better. In the evening when it turns to durable it sets to 60 of course.
I have the rest of settings like you. I do have app sync on, however. Without that it makes no sense to have a smartphone.

 

[Harthouse]

Synchronization of data on the accounts I'm doing manually, from time to time.

 

[majorwedgy]

Well I can comfortably say that performance destroys the battery, in looking at c. Half a day using it. More I use the phone the more I wish I'd kept my p30. This just isn't a meaningful upgrade and in many cases a downgrade

 

[Harthouse]

No! It's not all in the battery! Can your battery hold the whole day without charging? The phone is compact in size, cute, great performance, solid camera. It has strong hardware, pretty good, fluid software. By the way, I tested the speed of the phone and according to Antutu Benchmark, my phone is in fifth place!

 

[Adaoh]

Personally I can get around 3.5 - 5 hours SOT with the battery limited to 80%. My usage is pretty light, youtube, a little bit of browsing, discord and Infinity for Reddit. Also I noticed that the phone seems to drain fast when it is looking for cell towers, as when I am at home it does not drain so fast, but when I am moving it drains faster.

 

[majorwedgy]

New update today, claims to impact thermals and consumption, here's hoping it makes a difference

 

[DeepAccursed]

Getting about 5 1/2 SOT with the new .115 update over 11 hours use. Just as average as the exynos S21 I returned prior to it.

Screen set to 90hz, dynamic performance, everything on except AOD.

 

[majorwedgy]

using accubattery looks like my battery capacity is only 3222 - may explain why my performance is so poor

 

[DeepAccursed]

Strangely my Google Pay has stopped working since last update. Says device is not 'secure'.

 

[majorwedgy]

given up on mine and am selling, going back to the p30 which is just an all round better device. Shame as this phone promised so much

 

[majorwedgy]

Got a p30 back, Jesus to say it is night and day I've used the p30 more than I used the zenfone and ended the day with 40% at the end of the day where I had to top up the zenfone. There is clearly something wrong with the design of the phone.