[LG G6 Questions and Answers] Gam3r 4 Life:
Update: Just wanted to provide an update to this. I ran some very basic tests on both phones at the same time such as browsing, checking emails, a little gaming, etc. And what I noticed was that the G6 actually performed slightly better than the OP5 for normal use, and of course this is more important than a constant video playback test. And based on what others posted below it makes complete sense now why the OP5 seemed to be better in this. (Assuming the numbers were even accurate). But in normal day to day use I am seeing the G6 having excellent battery life. Anyway just wanted to update this so it doesnt cause someone to think I am saying the G6's battery is bad. Original post below.

Hello XDA. I just got a T-Mobile LG G6 and LOVE IT, except for one issue. Battery life. AOD is off, and always has been. My other phone Ive been using before this is a Oneplus 5. Ive been trying to decide which phone is going to be my permanent phone and love the G6 over the OP5 in almost every way except for battery life. I ran some basic tests just to get an idea of how they compare. Now I know that the G6 has a 2K LCD display and the OP5 has a 1080p Amoled. But I didnt think there would be that much of a difference since a lot of people said that the difference as far as battery life wouldnt be that much.

So I went into the tests expecting the OP5 to a bit better. But I didnt expect the results I got. The short result is that the OP5 had 20% more battery after running the below Netflix test for 2 hours. I ran the test again the next day, this time for 5 hours and the OP5 had 55% more battery left than the G6. The average percentage loss for the G6 running Netflix was 10% every 30 minutes, while the OP5 only loss an average of 3.25% every 30 minutes. When checking the battery usage to see what is draining the battery the most it is definitely the screen. On the G6 it accounted for 34% of the total loss, and on the OP5 it was only 13% of the loss. So maybe the 2K vs 1080p screen is the culprit after all. Like I said I expected it to be a factor, just not a 21% difference in the total usage between the G6 and OP5.

I also know that my OP5 is running 7.1.1 and the G6 7.0, but as far as I know the main difference between the 2 versions is Doze, and I have Doze off on the OP5 due to a Gmail sync issue. And I also know that a simple Netflix test doesnt really represent what kind of battery life I can expect from normal day to day use. Anyway basically what I want to know is does this seem normal, and when the G6 gets 7.1, or 7.1.1 will that improve the battery life enough to hopefully be better than this?

Like I said I REALLY like the G6 in every way, except the battery life. And Im not giving up on it. So if there is some hope that the battery life will improve that will definitely make me lean more towards keeping the G6 over the OP5. Anyway thanks for any input. Below is some more details on the test results I got. And Ive attached a screenshot of the battery usage with it at 11%, down 8% since the Netflix test ended.

LG G6 vs Oneplus 5 (2nd Netflix drain test)

Netflix Streaming Test at 100% Brightness, no other apps running. No Sim card in either. Both had same settings toggles on also:

LG G6:

Started at 100%

After 30 mins 92% Lost 8

After 60 mins 83% Lost 17

After 90 mins 72% Lost 28

After 2 Hours 61% Lost 39

After 2:30 mins 52% Lost 48

After 4 Hours at 40% Lost 60%

After 5 Hours at 19% Lost 81% (55% more drain than OP5)

Average of 10% loss every 30 minutes (About 6% more loss per minute)

Oneplus 5:

Started at 100%

After 30 mins 97% Lost 3

After 60 mins 94% Lost 6

After 90 mins 90% Lost 10

After 2 Hours 87% Lost 13

After 2:30 mins 84% Lost 16

After 4 Hours at 80% Lost 20%

After 5 Hours at 74% Lost 26% (55% less drain than G6)

Average of 3.25% Lost every 30 minutes (About 6% less loss per minute)