General Battery life and optimization

[Kemez]

During intensive initial days I get 4-5 SOT and 12h use time. This is with mid heavy usage.

My battery starts today attached:
- over 7h music streaming partially on Chromecast partially bt
- over 1h YouTube (45min in browser)
- 40min Teams video call
- over 30min photos and videos in two camera apps
- 1h of Opera browsing
- Gmail, messenger, maps and all other apps in constant synchronization
- last.fm and pebble running in background

From the list you can clearly see that the only stand behavior is connected to AOD which was over 1%/h so I have disabled it.

 

[michelinoO]

Hello

As I understand in my daily use, mixed WiFi - 4g, you can reach 5h.30min ost. Maybe is necessary some adjustments on 4g/5g modem, it sucks a little bit of battery WiFi is the best, the graph is linear.

Attached my mixed 4g/WiFi experience, during today. I forgot kill YouTube, I did 2hr screen total. As you can see in WiFi the graph is linear (untill the middle), while on 4g (2nd half), the curve began to drop more steeply.

 

[Kemez]

Starting to learn how to use this phone.

 

[Kemez]

No complains at all. Can't kill the battery in one day. Most of the screen time is at evenings at lower brightness but I do work so it's my natural usage.

 

[Kemez]

After disabling always on screen, 5G, Google tracking and backup I easily get over 6h SOT and less than 40% battery drain during 24h.

Battery is very good and there's no doubt about it.

 

[babbe]

I get about 3.5h SOT for 80% battery, no 5g, no AOS, dynamic mode, screen 90hz, no gaming, no apps with heavy drain

 

[Shazadz]

I lost 3% over 9 hours last night while the phone was on my bedside table,this was the first night,i think the phone is deep sleeping properly?i have restricted quite alot of apps from running in background

Screenshot_20210609-123443716.jpg


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[johnson880319]

7.5+ hours of SOT is possible. Here I reach 7 hours and 13 minutes of SOT from 90% to 8%. Ultra durable mode, no 5G, no mobile data always active in developer options, all WiFi, and Facebook services disabled. Brightness is set to auto.

 

[aikattx]

To those who's looking for compact phone, superb performance, 120hz display, great speaker, and good battery life, go on with Zenfone 8. Here's my SOT on my Zenfone 8 with force 90hz enabled. Cheers

 

[Kemez]

It looks like the last update improves the battery life quite a bit. Only free hours so no hard claims but the impression is heavy.

 

[aikattx]

It looks like the last update improves the battery life quite a bit. Only free hours so no hard claims but the impression is heavy.

Can you specified which “last update” you talking about?

 

[Kemez]

Can you specified which “last update” you talking about?

The one I got today: 30.11.51.67
I have updated the phone at 70% and got brilliant times afterwards. Over 5:15h SOT and 15h since charged with 20% still left.

 

[aikattx]

The one I got today: 30.11.51.67
I have updated the phone at 70% and got brilliant times afterwards. Over 5:15h SOT and 15h since charged with 20% still left.

I can confirm this. Updated to the latest firmware and boom battery was improved !

 

[avatar_ro]

I can confirm this. Updated to the latest firmware and boom battery was improved !

Could you please tell me how is the standby drain? Is it more than 1%/h during the night sleep?

 

[Kemez]

Could you please tell me how is the standby drain? Is it more than 1%/h during the night sleep?

I get between 1,3 - 1,8 percent during night in deep sleep. Confirmed by AccuBattery.

 

[avatar_ro]

I get between 1,3 - 1,8 percent during night in deep sleep. Confirmed by AccuBattery.

thank you for the reply, but could you be more specific? the drain you mentioned is per hour or per entire night?

 

[Kemez]

It's per hour.
You can get probably less when switching off connection of data. I am leaving the phone fully ready as I have used it during the day - just put in ultra durable mode.

 

[Hollyca]

Jusr for info, after watching a teardown video I realized he battery is actually 3835mah not 4000 !