Battery Life

One of the things Qualcomm promised would come with Snapdragon 800 (8974) (and by extension the process improvement with 28nm HPM) was lower power consumption, especially versus Snapdragon 600 (8064). There are improvements throughout the overall Snapdragon 800 platform which help as well, newer PMIC (PM8941) and that newer modem block onboard as well, but overall platform power goes down in the lower performance states for Snapdragon 800. In addition the G2 has a few unique power saving features of its own, including display GRAM (Graphics RAM) which enables the equivalent of panel self refresh for the display. When the display is static, the G2 can run parts of the display subsystem and AP off and save power, which they purport increases the mixed use battery life case by 10 percent overall, and 26 percent compared to the actively refreshing display equivalent. In addition the G2 has a fairly sizable 3000 mAh 3.8V (11.4 watt-hour) battery which is stacked to get the most out of the rounded shape of the device, and utilizes LG's new SiO+ anode for increased energy density compared to the conventional graphite anode. 

Our battery life test is unchanged, we calibrate the display to exactly 200 nits and run it through a controlled workload consisting of a dozen or so popular pages and articles with pauses in between until the device dies. This is repeated on cellular and WiFi, in this case since we have an international model of the G2 that lacks the LTE bands used in the USA, that's 3G WCDMA on AT&T's Band 2 network. I've tested 3G battery life on devices concurrently for a while now in addition to LTE though, so we still have some meaningful comparisons. The most interesting comparisons are to the Optimus G (APQ8064) and HTC One (APQ8064T) previous generation.

AT Smartphone Bench 2013: Web Browsing Battery Life (3G/2G)

AT Smartphone Bench 2013: Web Browsing Battery Life (WiFi)

Cellular Talk Time

The LG G2 battery life is shockingly good through our tests, and in subjective use. The combination of larger battery, GRAM for panel self refresh, new HK-MG process, and changes to the architecture dramatically improve things for the G2 over the Optimus G. While running the two web browsing tests I suspected that the G2 might be my first phone call test to break 24 hours, while it doesn't break it it comes tantalizingly close at 23.5 hours. I'm very impressed with the G2 battery life.

Device Charge Time - 0 to 100 Percent

The G2 also charges very fast for its battery size. I've been profiling charging behavior and current for devices for a while now, since I strongly believe that battery life and charging speed are complementary problems. You should always opportunistically charge your smartphone, being able to draw as much while you have access to a power outlet is critical. The G2 can negotiate a 2A charge rate on my downstream charge port controller and charges very fast in that mode. Of course the PM8941 PMIC also includes some new features that Qualcomm has given QuickCharge 2.0 branding.

Display CPU Performance
POST A COMMENT

118 Comments

View All Comments

  • tuxRoller - Saturday, September 07, 2013 - link

    You are making a point which, given our data, is impossible to prove/disprove.
    They are saying, I think, that they don't believe MOST people care about having a removable sdcard. Given that iphones sell so well, I'd think that there are very large groups for which this is true (roughly a third of smartphone owners worldwide). Samsung offers removable storage, but so have the other manufacturers (like sony) yet it hasn't/isn't helping them.
    Reply
  • flyingpants1 - Saturday, September 07, 2013 - link

    The people who are generally knowledgeable about phones are the ones recommending Samsung Galaxy S3/S4 to their friends. Partially because of the extra features like removable/customizable battery and storage. These features always get a mention in reviews also. You're a fool if you think they're not a factor in Samsung's success.

    Right now in my S4 I have the capability to add a 64gb microsd card purely for movies and TV shows and crap like that. That would cost me $50, whereas an additional device like an iPod touch would cost me a lot more. I'd rather just turn my phone into my iPod, but I just CANNOT do that if I have to constantly worry about my onboard space.

    All flagship phones going forward should be 32gb+.
    Reply
  • rocketbuddha - Monday, September 09, 2013 - link

    Dude!
    a) How many HTC phones have you owned?
    b) Do you know how many software updates HTC does for its "premium" phones in its life cycle?
    c) Have you seen the quality of the software releases for 1-2 yr old phones? Battery life/random restarts etc....
    Reply
  • Arbie - Monday, September 09, 2013 - link

    I agree with BabelHuber. No micro/SD = no sale. Talk all you want about how "most of us are streaming from the cloud" or "internal memory is lots faster" - but that means nothing to me. I *DO* want to watch and listen to media and I *DO* want to move it on and off the device quickly. Like when I grab the thing for a trip. Micro/SD lets me do this and works GREAT. You stream; I'll snap.

    Micro/SD is worth $$ to me. Conversely, I'm not going to spend $$$$ on a device like this without it. As Babel says: why take the phone with less options? It simply does not make sense.
    Reply
  • hughlle - Monday, September 09, 2013 - link

    Yet people happily take the iphone with less options time and time again. apple market their harware properly, and the lack of options becomes irrelevant.

    The lack of an SD card will certainly cause a loss of sales from a certain market, but it is a minimal loss of sales in the grand scheme of things. Rather like imagining the loss of sales from people who won't buy this phone because it's not available in pink. It's a non-event.

    As has been said, the majority of people care about total space, not removable storage. you can not put an accurate number on the ratio, but to try and argue it is otherwise is silly. The majority want to be able to take photos, record videos, dowload music and shows, not root around in their handbag or pocket or draw for the correct SD card that has their scrubs episodes on it. Average joe wants simplicity. they want to be able to press the screen and access their content. Not start swapping cards in and out.
    Reply
  • Impulses - Saturday, September 07, 2013 - link

    Yes, the power of branding is incredible. The words Samsung and Galaxy are pounded into the social consciousness to the point that they're now synonymous with Android (like Moto/VZW's Droid campaign early on). It's a very very strong effect. Reply
  • Impulses - Saturday, September 07, 2013 - link

    I don't think sporting removable media and batteries is even amongst the top three reasons why Samsung outsells everyone... I think to imply so seems a bit near sighted. Samsung started dominating long before most manufacturers moved to sealed batteries etc, you can trace their upward track pretty closely to how much more they invested in branding with each successive generation (much to the carrier's chagrin, if it were up to them we'd still have five different Galaxy variations every year).

    Personally I could care less for removable media and batteries, but I do appreciate and applaud the fact that Samsung still offers that choice... I think it's one of the advantages of the Android ecosystem. I don't think the majority of the market cares about this tho.
    Reply
  • Spunjji - Monday, September 09, 2013 - link

    As someone who'd be moving from a Note 2 with 16GB internal and 64GB Micro SD, I think I'd actually appreciate the smaller unified space. It'd be a bit more of a pinch, but the fact is that after several re-formats and changes of software I'm getting sick to the back teeth of different builds treating my SD card differently (no exFAT support in CM10 is a real killer) and having to re-create links from my in-built storage to the external for apps like Google Play Music.

    The fact is that external removable storage is a pig to set up and maintain. It could work so much better than it does, but Google don't want to maintain it and I think the point where it's worth letting go has now arrived.
    Reply
  • [-Stash-] - Tuesday, September 10, 2013 - link

    No exFAT in CM10 is a pain, I'll agree, but since you root your phone anyway, just bung this on, it means you can even read/write to NTFS formatted storage (SD Cards, USB HDDs):
    https://play.google.com/store/apps/details?id=eu.c...
    Reply
  • bill5 - Saturday, September 07, 2013 - link

    This seemingly would be the phone to get if I needed one right now. Nice battery life.

    However my upgrade isnt for almost a year, like a lot of people I suspect, I upgraded right when SGS3 came out.

    That means I wont be due for another upgrade til SGS5 hits, and I'm guessing it will trump this phone, naturally. Such is the life of everybody trying to fight samsung...
    Reply

Log in

Don't have an account? Sign up now