topic Strange battery drain from Android system in ZenFone 7

Strange battery drain from Android system

Synoxia — Tue, 17 Aug 2021 14:41:38 GMT

Please tell us some basic information before asking for help:
Model Name: Zf7 pro
Firmware Version: latest 30.41.69.89
Rooted or not: not
Frequency of Occurrence: always
APP Name & APP Version (If your issue relates to the app): Android system
In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.
Now im all stock/default settings with only mobile data Always Active disabled in developer settings
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Re: Strange battery drain from Android system

topolov — Wed, 18 Aug 2021 06:09:15 GMT

I suggest you to clean temp files and reboot, this helped me

Re: Strange battery drain from Android system

Synoxia — Wed, 18 Aug 2021 10:20:22 GMT

topolov
I suggest you to clean temp files and reboot, this helped me

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Hi, thank you for the answer, do you mean cache?

Re: Strange battery drain from Android system

topolov — Wed, 18 Aug 2021 11:44:58 GMT

Synoxia
https://zentalk.asus.com/en/discussion/comment/181883#Comment_181883
Hi, thank you for the answer, do you mean cache?

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Yes, I mean to clean cash

Re: Strange battery drain from Android system

Synoxia — Thu, 19 Aug 2021 14:43:48 GMT

topolov
https://zentalk.asus.com/en/discussion/comment/181953#Comment_181953
Yes, I mean to clean cash

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Seems useless, android system Is still the "top performer"

Re: Strange battery drain from Android system

CVonC — Fri, 20 Aug 2021 02:54:37 GMT

My battery stats, Android System is usually at the top below screen. This was the case for A10 too.

Re: Strange battery drain from Android system

topolov — Fri, 20 Aug 2021 08:32:53 GMT

I have the same issue, but I think this is not really issue, because battery is fine.
I downloaded docker, installed BetteryHistorian there, checked my bugreports and found that there is no issue actually.
S Health is always in memory and it initiates insane amount of wakelocks, but in statistics I can see this app consumes just like 1% of battery which is not true.
I believe this is problem with native android battery stats, not issues with Asus implementation. I had a lot of phones and native statistics always sucks.
I have a work profile with a lot of applications there and I can't see them in that window, like they not exist. Other software like samsung, don't even support work profile, I can't receive push notifications etc.
So my opinion if idle and screen time is ok, then forget this battery stats.

Re: Strange battery drain from Android system

Synoxia — Sun, 22 Aug 2021 14:01:05 GMT

I can barely get 5 hours of SOT with the phone

Re: Strange battery drain from Android system

Roystoys — Mon, 23 Aug 2021 08:43:31 GMT

Synoxia
I can barely get 5 hours of SOT with the phone

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LoL only how Many.?

Re: Strange battery drain from Android system

topolov — Mon, 23 Aug 2021 18:21:22 GMT

Synoxia
I can barely get 5 hours of SOT with the phone

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I have 5-8 hours, BUT
I have 238 apps installed in personal profile
I have 34 apps installed in Work profile
This includes a dozen of messengers, which can't be hibernate in order not to miss notification. And Outlook, which wakes my phone up each 5-15 minutes during business day.
Maybe this is not the best result, I don't know. But with my previous phone Oppo Reno I had 2.5-4 hours of active screen time with battery 3700 Mah. Number of installed apps was almost the same. Scenario (work+personal profile) was the same.
So this parameter, SOT, depends on use scenario. Please show me kinda "flagship" phone with better active screen time.

Re: Strange battery drain from Android system

CVonC — Tue, 24 Aug 2021 12:45:34 GMT

100% down to 10%. No photos or calls during this period though and always on wifi.

Re: Strange battery drain from Android system

Synoxia — Tue, 24 Aug 2021 12:49:43 GMT

topolov
https://zentalk.asus.com/en/discussion/comment/182571#Comment_182571
I have 5-8 hours, BUT
I have 238 apps installed in personal profile
I have 34 apps installed in Work profile
This includes a dozen of messengers, which can't be hibernate in order not to miss notification. And Outlook, which wakes my phone up each 5-15 minutes during business day.
Maybe this is not the best result, I don't know. But with my previous phone Oppo Reno I had 2.5-4 hours of active screen time with battery 3700 Mah. Number of installed apps was almost the same. Scenario (work+personal profile) was the same.
So this parameter, SOT, depends on use scenario. Please show me kinda "flagship" phone with better active screen time.

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here you can see plenty of them that outperform zf7 with less battery capacity or with higher refresh screen without troubles
Anandtech.com/show/16016/the-asus-zenfone-7-pro-review/5
Usage scenario includes Clash of Clans, taking pics and messaging... Wifi or 4g. With my old f2 pro i could play all day Even at beach and still come home with 20-30%... with zf7 i have to Walk with Powerbanks... I start the day with 89% scheduled charge and i yet have to move to pool, so i have to charge again.
I Always charge before It reaches 30-40, sometimes at 20% (mostly with 10/18w, charge)

Re: Strange battery drain from Android system

Synoxia — Tue, 24 Aug 2021 12:59:09 GMT

CVonC
100% down to 10%. No photos or calls during this period though and always on wifi.

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Wi-Fi only uh? You too have a lot of android system consumption

Re: Strange battery drain from Android system

CVonC — Tue, 24 Aug 2021 13:02:44 GMT

Synoxia
https://zentalk.asus.com/en/discussion/comment/182986#Comment_182986
Wi-Fi only uh? You too have a lot of android system consumption

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Yeah that's always been the case with my usage ever since I got the phone. Even on Android 10. If you want I'll turn wifi off for the next cycle?

Re: Strange battery drain from Android system

Synoxia — Tue, 24 Aug 2021 13:23:58 GMT

CVonC
https://zentalk.asus.com/en/discussion/comment/182990#Comment_182990
Yeah that's always been the case with my usage ever since I got the phone. Even on Android 10. If you want I'll turn wifi off for the next cycle?

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Yes, thank you.

Re: Strange battery drain from Android system

CVonC — Fri, 27 Aug 2021 13:32:16 GMT

Synoxia
https://zentalk.asus.com/en/discussion/comment/182992#Comment_182992
Yes, thank you.

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Okay so this is with wifi off. No calls and one photo. It lasted another 35 mins before it shut itself down. Interestingly Android System usage is less.

Re: Strange battery drain from Android system

Synoxia — Sat, 28 Aug 2021 22:19:07 GMT

The strange graph is me costantly replugging the phone. How Android system is more Power hungry than Clash of Clans Is out of my mind.

Re: Strange battery drain from Android system

topolov — Tue, 07 Sep 2021 07:22:38 GMT

Do you have "HyperFusion" enabled?

Re: Strange battery drain from Android system

Synoxia — Fri, 10 Sep 2021 01:25:44 GMT

topolov
Do you have "HyperFusion" enabled?

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No, i've disabled that and dual band wi fi. Someone said they are big battery hog

Re: Strange battery drain from Android system

Synoxia — Mon, 20 Sep 2021 16:13:25 GMT

topolov
Do you have "HyperFusion" enabled?

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Coulndt find a way to dm you, lol.
tDOTme/zenfone7chat