LG G6 battery life test results are out: can a 3,300 mAh battery handle a 5.7" screen?

The LG G6 is an exciting phone: the first mainstream phone with a 'full-screen', 5.7-inch display, it's actually smaller than last year's 5.3-inch LG G5. This became possible because of the new, taller and narrower, 2:1 display, but including such a bigger display meant LG had one more battery challenge.

A phone's display is usually the number one source of battery drain, so that's why we were curious to see the LG G6 battery life. The G6 features a 3,300 mAh battery, a big increase from the 2,800 mAh cell on the G5. Increasing the battery capacity is a great move on LG's part: poor battery life was the G5's weakest point, and we went into our battery testing with high hopes that LG has improved this year around.

So how is the LG G6 battery life?

Unfortunately, it is nothing to write home about: the LG G6 scores a score of 6 hours and 20 minutes of battery life on our test, slightly better than the G5 and G4. What does that mean for you? We have been living with the phone for the past two weeks or so, and we have found that it gets us through a full day of use and even lasts a bit more, but we have not been pushing it to its limits. If you start playing more games and taking more pictures you might need to recharge before the end of the day, but if you use your phone moderately, you should not worry about getting through a day without a trip to the charger. 

Battery life (hours) Higher is better
LG G6 6h 9 min (Poor)
LG G5 5h 51 min (Poor)
LG G4 6h 6 min (Poor)
Apple iPhone 7 7h 46 min (Average)
Apple iPhone 7 Plus 9h 5 min (Good)
Samsung Galaxy S7 6h 37 min (Average)
Samsung Galaxy S7 edge 7h 18 min (Average)
LG V20 6h 23 min (Poor)
OnePlus 3T 5h 41 min (Poor)
Google Pixel 7h 45 min (Average)

In our benchmark comparison, you can, however, see that the LG G6 is outlasted by Apple's iPhone 7, the Samsung Galaxy S7 and the Google Pixel. The difference is not huge in some cases, but it is there. Interestingly, the LG G6 lasts almost as much as the earlier released LG V20.

Charging time (minutes) Lower is better
LG G6 97
LG G5 76
LG G4 127
Apple iPhone 7 141
Apple iPhone 7 Plus 197
Samsung Galaxy S7 88
Samsung Galaxy S7 edge 99
LG V20 86
OnePlus 3T 85
Google Pixel 119

The next thing we look when we measure battery performance is charge times: how much time it takes for the in-the-box wall charger to fully charge up the phone's battery. The LG G6 is quick to recharge, but it's not among the fastest: it takes 1 hour and 42 minutes for a full charge. This is slightly faster than the Google Pixel and much faster than the iPhone 7, but it's slower than the S7 and OnePlus 3T.


At the end of the day, we have the following LG G6 battery life testing TL;DR for you:

  • LG G6 battery benchmarks do not impress
  • In real-life, though, it has great stand-by
  • We get one day and even slightly more with average use
  • It is fast to charge, but not the fastest out there

Related phones

  • Display 5.7 inches
    2880 x 1440 pixels
  • Camera 13 MP (Dual camera)
    5 MP front
  • Hardware Qualcomm Snapdragon 821, 4GB RAM
  • Storage 32GB, microSDXC
  • Battery 3300 mAh
  • OS Android 8.0 Oreo
    LG UX UI




Posts: 657; Member since: Jun 28, 2014

The G6's battery average life will drop below the G5's within 18 months/ once the battery is old. The G5 will continue working per spec with a new $20 battery. The G5 wins.

41. Slytherin

Posts: 268; Member since: Mar 02, 2017

My Exynos S6 Edge+ 3000Mah Battery is Awesome! I've never really taken an in-depth look at it but it lasts me from early morning with light use till 6 in the evening, when it gets a solid 6 hours non stop of Snapchat, Instagram,YouTube, Google now, Flipboard. Quality!

40. TechieXP1969

Posts: 14967; Member since: Sep 25, 2013

Any test PA can do, that makes the iPhone look good, is what they will show. But lets go to THERE own test right here: http://www.phonearena.com/phones/benchmarks So PA loves to put phones that are less similar. To start, the iPhone Plus models don't even have a 3000+MAH battery to begin with, so them dropping the iPhone into the test is bogus. So lets see: According to their test the Note 5 and S6 edge+ both have 3000Mah batteries. The S6E+ last 9:29 according to PA and the Note 5 9:11. Since these phones both have 5.7" displays and have a battery in the 3000Mah range, why not have them on the list as a comparison? The S7 and S7 edge according to EVERY site on the internet except PA, all have much longer battery life vs the iPhone Plus models. The smaller iPhone doesnt even stand a chance against a phone that has a 60%+ larger battery. So in this case, you know PA's test is a lie. The base iPhone drops from 100% to 20% in just 2 hours of web browsing. Many videos have shown this. Here is the issue. The iPhone has about ha;f the hardware prowness of most Galaxy class smartphone. A phone with dual quads in PA's mind, should go through a battery quick than a phone with on dual cores. Yet this is not the case. Its sad that a site is bias, they are willing to lie. Or rig tests to make their favorite seem better.

51. ecmedic4

Posts: 520; Member since: May 02, 2013

The iPhone drops from 100% to 20% in 2 hrs? I love how you throw crap out there but never back it up with anything. If that was actually true, I am highly sure that iPhone users would have made a huge complaint about it and it would have been all over the net, yet I've never see anything about that happening. You are nothing more than a lying troll. You will throw anything out that ur lil mind can come up with to diss anything Apple while you praise samsung like they are god. You need some serious psychological help. Ive never seen someone troll and lie and hate on an inanimate object as much as you do.

36. L0n3n1nja

Posts: 1617; Member since: Jul 12, 2016

Lame title article implies 3300mah is small for a 5.7 inch screen. The Note 5 with a 5.7 inch screen and 3000mah battery destroys the G6 is battery life according to your charts, it lasts over 9 hours.

39. TechieXP1969

Posts: 14967; Member since: Sep 25, 2013

That's why its not in this article, because it totally shames the iPhone.

35. TechieXP1969

Posts: 14967; Member since: Sep 25, 2013

I think it would have been great to have the Note 5 in this list. It has a 3000Mah battery and is also 5.7".

38. L0n3n1nja

Posts: 1617; Member since: Jul 12, 2016

You can add any phone you want to the chart/list. Even the Note 4 has much better battery life, same size screen and smaller battery.

30. Sprissy

Posts: 193; Member since: Feb 11, 2012

Exactly why I didn't buy a G6...got the V20 instead because of the removable battery. LG doesn't seem to optimize their batteries very well, an average battery life in a flagship phone is unacceptable unless it is user replaceable....that's only my opinion but I am not always near a place to charge so swapping a battery is a better option for me!

27. PryvateiDz

Posts: 447; Member since: Jul 31, 2011

6 hours and 20 minutes SOT (screen on time)? If so, when was that anywhere near bad? Most smartphones are lucky to get over 4 hours of SOT.

28. joeytaylor

Posts: 957; Member since: Feb 28, 2015

I don't think that is SOT

34. PryvateiDz

Posts: 447; Member since: Jul 31, 2011

Thanks for the heads up. I'm hearing mixed reports about the LG G6's battery life.

47. marorun

Posts: 5029; Member since: Mar 30, 2015

Been testing it since 1 week. I get about 6 hours of SOT compared to 4.5 hours on my LG G5. Identical usage on both. So its a good improvement.

26. Einstein333

Posts: 146; Member since: May 22, 2012

That's exactly why I never buy lg phones !

25. Martin_Cooper

Posts: 1774; Member since: Jul 30, 2013

I came from 6S to S7E and 6S was pathetically bad. S7E lasts 2 days, 6S wouldnt last half day. PA battery tests are a joke.

24. Moose

Posts: 418; Member since: Jan 05, 2015

Not sure about PA's battery tests in general, but GSMArena's battery life list also puts the G6 only a bit ahead of the G5 and G4, totally unacceptable. Quick charge is no substitute. It is the principle of the thing more than the impracticality or otherwise of having to plug it in more often. By that I mean, in 2017, we should have longer battery life and if some phones, like most of those offered by Xiaomi and some of Samsung's can achieve a full 2 days of battery life then there is no excuse for barely managing one day.

22. monoke

Posts: 1212; Member since: Mar 14, 2015

Glad to see the mighty z3 is still the battery life to thinness champ. Looking at the bright side of not upgrading yet. Lol.

16. markobarko

Posts: 176; Member since: Oct 09, 2016

Pa is pure joke living on the lonely iplanet. For true battery tests please visit someone else.

14. ebilcake

Posts: 1234; Member since: Jul 16, 2016

This phone is a year too late, this would have been a good competitor to the Galaxy S7/Edge.

46. marorun

Posts: 5029; Member since: Mar 30, 2015

Its would have trash the S7 and edge on all aspect... would be a galaxy killer 1 year ago :) Now its an adequate contender. I holded S8/S8+ and the G6 and the G6 feel much better in hand its feel more solid too. S8 and S8+ i was afraid to drop it.

48. ebilcake

Posts: 1234; Member since: Jul 16, 2016

You holded S8? what is this? English from a 10 year old.


Posts: 234; Member since: Sep 24, 2015


9. tango_charlie

Posts: 347; Member since: Nov 16, 2011

The 3300mAh battery is way too small. Period.

37. L0n3n1nja

Posts: 1617; Member since: Jul 12, 2016

Larger than the battery in any phone I've owned, and I get over 24 hours usage, I don't want to own a bulky brick because some people have their screen on all day.

8. fyah_king unregistered

I have both G4 and G5. The battery life in the G5 is better. Ya'll need to do something with your battery testing methods.

15. ebilcake

Posts: 1234; Member since: Jul 16, 2016

Results are fairly consistent when looking at the Android devices with Snapdragon 820/821. Not sure if results from Samsung devices are even fair, the aggressive throttling under load makes them irrelevant imo.

7. sachouba

Posts: 267; Member since: Jun 08, 2014

"can a 3,300 mAh battery handle a 5.7" screen?" What's sure is that your rubbish benchmark will not enlighten us on this matter.

6. Clars123

Posts: 1082; Member since: Mar 16, 2015

ohhhhhh..did not see that coming. Then again these are the guys who said the iPhone 7 lasts longer than the S7 and Htc10

5. manojmcn

Posts: 634; Member since: Jul 16, 2015

Lol.. if your tests and real life stats are contradictory, then fix your tests first before publishing it. I remember the test results from this mag for S7/S7 Edge was way off the mark compared to real life usage and tests by other tech sites.

12. WingMan unregistered

Most new phones have great standby battery life. PA seems to test only screen-on time. Most of the improvements to the OS and chips nowadays are to improve standby time.

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