[LG V20 Guides, News, & Discussion] One Twelve:
Can't hurt to try. It stemmed an inexplicable 30% overnight drop once when the average is 6% over 12h. My drain has since become more erratic but the first month this thing behaved very well. making it to four days and beyond just sitting there was very feasible, these days its more like two. So my drain rate doubled for some reason.

With android i'd say a restart at the beginning of the week is good practice. And a factory reset every six months is like spring cleaning. With the router flashing community the recommended upgrade procedure is a factory reset before the firmware upgrade followed by a second after the os is updated. You can be sure that is what i'll be doing when oreo arrives.

Another thing you could try is going into settings - storage and giving the apps cache a clean

I use an app called

3c battery monitor

, what i like about it is the

history screen

. How much the discharge/hr is and what the battery temp is. All this will tell you is if there is a problem and when but not where it is. My usual discarge is 0.4% - 0.6% per hour but there are times it will spike to 6%/hr r even 12% stay there for an hour or two and then drop again. Have nt figured out why but that's why my averaged standby got halved

Not total, down to 80%. Total would be 1500 cycles. Course a lot of this is down to use and more abuse. Do you abuse your phone ? i don't think so.

I had a Note 10 that averaged 10+ hours SOT when new, i used that thing every day and it gave up close to its 4th birthday. Battery was still giving me 7+ hours by then. What killed it wasn't battery but the internal storage chip. Seems these flash memories come with a fixed number of write cycles and the rate of decay increases if you pass below 50% free storage. To keep things snappy and perhaps to prolong life its best that total storage used not to dip below 50% total capacity.

22 isn't warm for battery temperature and rather normal resting temps for the V20. Warm is when it approaches and crosses body temperature think 40 and above. Mine wont get there even on fast charge, 33 is the highest i've seen it. Course the screen is off and its not being used. But i find the 820 battery temps is still a good five degrees lower than the 808 on the G4

Right 6% then is quite high as is 19% when screen is on. How high is your screen brightness in % ?

is the secondary screen on, that's an additional 1%/h drain if it is

it's worth a try but you will need a PC or second device with adb installed, that isn't very difficult to do. adb is necessary to enable partial wakelocks on bbs without root. I don't get root on my 990ds variant so this is as far as i can play.

When i tried it it pointed to radio wake locks, i'm still trying to figure it out. But with N , phone idle or android system taking up top spot in battery usage on the HTC 10 and one plus 3 its coming down to a bad nougat driver for the broadcom chip used. Prevents the phone from sleeping. This means only an update will fix it, ie Oreo, fingers crossed

Thing is the problem was not there for at least a month or two when i got the V20 which was only last Nov. A bad driver would have been bad from day 1