There's plenty of people reporting a higher than expected battery drain on the Zenfone 8, and while we just have to assume the cost of using an 888 snapdragon, there seems to be an issue with the system itself, causing a high idle battery drain.
The phone just never gets into deep doze, no matter how much times it spends turned off. This causes maybe twice the battery drain what it should use while doing nothing.
I'm confident in this being an issue with ZenUI itself, since no amount of wakelocks from apps would cause a literal 0 seconds of deep doze, plus I see no wakelocks or strange behaviour from any apps in either the system battery information or GSam Battery Monitor (an app that's always worked well for me in this regard).
I'm uploading to snapshots from GSam, one from the Zenfone that I just took after leaving the phone alone for 2 and a half hours, and one from my old s10e for comparison. As you can see, the Zenfone just doens't ever enter deep doze, leading, as of this moment, to a 0.7% per hour battery drain while doing nothing, a drain that's easily twice as high as it should be with a 4000 mah battery (for reference the s10e drains about 0.4-0.5% per hour with an older 3000 mah battery)
If we could get a way of fixing this, it'd go a long way to stretch the battery use of the phone.
The phone just never gets into deep doze, no matter how much times it spends turned off. This causes maybe twice the battery drain what it should use while doing nothing.
I'm confident in this being an issue with ZenUI itself, since no amount of wakelocks from apps would cause a literal 0 seconds of deep doze, plus I see no wakelocks or strange behaviour from any apps in either the system battery information or GSam Battery Monitor (an app that's always worked well for me in this regard).
I'm uploading to snapshots from GSam, one from the Zenfone that I just took after leaving the phone alone for 2 and a half hours, and one from my old s10e for comparison. As you can see, the Zenfone just doens't ever enter deep doze, leading, as of this moment, to a 0.7% per hour battery drain while doing nothing, a drain that's easily twice as high as it should be with a 4000 mah battery (for reference the s10e drains about 0.4-0.5% per hour with an older 3000 mah battery)
If we could get a way of fixing this, it'd go a long way to stretch the battery use of the phone.
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
Thanks for the reply. I was waiting a bit more to try and let the phone stabilize some more, but yeah I'll provide some screenshots.
I'm using no AOD, 1 SIM, and 5G is turned off (I'm most of the time on moderate to good 4G reception). I use the "pick up to wake the screen" feature (which doens't seem to cause any drain) and finger scanner.
From what I've been able to tell, today being another example, I think that playing music over bluetooth may be a particularly big power hog, as high as upwards of 7% per hour. It stands to reason this particular use of mine is a very specific cause for my low-sih battery performance. I'll check what's the usage with wired earphones.
Shot of the system is in spanish, but I think it's pretty self explanatory.
I'm using no AOD, 1 SIM, and 5G is turned off (I'm most of the time on moderate to good 4G reception). I use the "pick up to wake the screen" feature (which doens't seem to cause any drain) and finger scanner.
From what I've been able to tell, today being another example, I think that playing music over bluetooth may be a particularly big power hog, as high as upwards of 7% per hour. It stands to reason this particular use of mine is a very specific cause for my low-sih battery performance. I'll check what's the usage with wired earphones.
Shot of the system is in spanish, but I think it's pretty self explanatory.
About after few hours,i have aod off,use face unlock as well as fingerprint
MolitroIf you would be able to - try to restart your device before going to sleep (and not do anything with it), and try to check the idle drain (wihtout having used the device after a restart) over night?Thanks for the reply. I was waiting a bit more to try and let the phone stabilize some more, but yeah I'll provide some screenshots.
I'm using no AOD, 1 SIM, and 5G is turned off (I'm most of the time on moderate to good 4G reception). I use the "pick up to wake the screen" feature (which doens't seem to cause any drain) and finger scanner.
From what I've been able to tell, today being another example, I think that playing music over bluetooth may be a particularly big power hog, as high as upwards of 7% per hour. It stands to reason this particular use of mine is a very specific cause for my low-sih battery performance. I'll check what's the usage with wired earphones.
Shot of the system is in spanish, but I think it's pretty self explanatory.
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This may help us narrow down if it is system generic (as in "always") or usage pattern related. I'm suspecting it is usage pattern in some ways, which we need to narrow down more.
Thank you!
