01-16-2017 10:56 AM
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  1. Jeremiah Bonds's Avatar
    I'm just curious.

    When I was with Sprint 4 years ago, WiFi used to extend my battery life, by a lot. Ever since I switch TMobile, it seems like when I use WiFi, my battery drains faster, maybe the T-Mobile network is just pretty good in my area?
    01-02-2017 06:10 PM
  2. RaRa85's Avatar
    Wi-Fi does wonders and I'm on T-Mobile as well. This was from today. In the house all day on Wi-Fi.
    Jeremiah Bonds likes this.
    01-02-2017 06:13 PM
  3. Jeremiah Bonds's Avatar
    Wi-Fi does wonders and I'm on T-Mobile as well. This was from today. In the house all day on Wi-Fi.https://uploads.tapatalk-cdn.com/2017...ae1f21eeca.jpg
    I saw your post, and thought about it... Because for the last three years, I've had the LG G2, LG G4, LG V10 and now the V20, and it seems my battery is always better without wifi... I don't get it. Haha.
    01-02-2017 06:15 PM
  4. Almeuit's Avatar
    Wi-Fi does wonders and I'm on T-Mobile as well. This was from today. In the house all day on Wi-Fi.https://uploads.tapatalk-cdn.com/2017...ae1f21eeca.jpg
    Hard to tell much about the battery from just screen on time.
    Ntchwaidumela likes this.
    01-02-2017 06:15 PM
  5. RaRa85's Avatar
    Hard to tell much about the battery from just screen on time.
    Screen brightness at 37%. No gaming. Light browsing between PhoneArena, the Verge and Instagram through the browser not the app. Watched a few YouTube videos. Back and forth between Tapatalk forums and Flickr app. Looking through my photos. In and out of NFL Mobile and ESPN apps. But the phone has been on and in use for 5 hours with 30% left without any kind of intentional battery saving methods. I can't complain.
    01-02-2017 06:21 PM
  6. Morty2264's Avatar
    Hmm, I don't think WiFi affects my battery in a negative way.
    Ntchwaidumela likes this.
    01-02-2017 06:29 PM
  7. Almeuit's Avatar
    Screen brightness at 37%. No gaming. Light browsing between PhoneArena, the Verge and Instagram through the browser not the app. Watched a few YouTube videos. Back and forth between Tapatalk forums and Flickr app. Looking through my photos. In and out of NFL Mobile and ESPN apps. But the phone has been on and in use for 5 hours with 30% left without any kind of intentional battery saving methods. I can't complain.
    Easier to just snap the pic of the screen before the screen on time .
    Ntchwaidumela likes this.
    01-02-2017 06:51 PM
  8. Jeremiah Bonds's Avatar
    I guess no one has worse battery when on WiFi, but me?
    01-03-2017 11:16 AM
  9. Ryano89's Avatar
    I guess no one has worse battery when on WiFi, but me?
    I experience the same thing. For me it was the same way on a Note5 running Android Marshmallow
    Jeremiah Bonds likes this.
    01-03-2017 03:48 PM
  10. natehoy's Avatar
    I guess no one has worse battery when on WiFi, but me?
    WiFi is usually more power-efficient because you are transmitting requests and acknowledgments (usually) at lower power and for less time to transfer the same amount of data, so you are using less power overall. WiFi access points are short-range and you are transmitting to them in the 30-milliWatt range. Cell is longer range and you are usually transmitting closer to the 250mW range to punch a signal through unless the tower is really close. There are other power draws involved than transmission, but basically WiFi will be ~8 times less "hungry" than cell data - all other things being equal (both being at the same number of bars, etc).

    However, all other things are rarely equal. If you are on weak WiFi, you might be getting 1mbps and losing packets intermittently which requires a re-send, so effectively you may be getting half that. So you are transmitting at the full 30mW asking for retries all the time to get an effective throughput of 500kbps.

    If at the same time you are on strong LTE (so your phone is transmitting a much weaker signal to reach the tower, so it might only need to transmit at 100mW) and it can provide you with 20mbps of reliable speed, then you are effectively receiving data up to 40 times faster than a weak WiFi signal at a cost of about three times the effective power consumed.

    Plus, of course, you may have apps that are trying to sync only when connected to WiFi. Google Photos, for example - if you have that set to only sync when it is on WiFi, it doesn't matter how good your WiFi is - there are data-intensive activities going on only when WiFi is connected and they are gonna draw a lot of power to get 'er done. As soon as you turn off WiFi, those apps shut down and your battery holds up better because your phone is simply doing less work.
    01-04-2017 02:33 PM
  11. Ntchwaidumela's Avatar
    I guess no one has worse battery when on WiFi, but me?
    Are you sure it's on wifi the entire time? And that it didn't switch itself over to the network? I ask because I've come home from work and my phone was still on the network and didn't switch over to wifi automatically. I manually switched it. In that case, the battery use over the network might have been a little more, even though my network reception at home is 4-5 bars all the time.
    01-04-2017 02:49 PM
  12. Jeremiah Bonds's Avatar
    yeah I'm pretty sure. I can see a drop in battery life as opposed to when I'm on my network.. Maybe the wifi at my office doesn't bode well with my phones?
    01-04-2017 03:25 PM
  13. B. Diddy's Avatar
    I haven't done a rigidly controlled study, but I also have noticed that battery seems to run down a bit faster on my Nexus 6P when wi-fi is turned on. I'm on T-Mobile, and get decent signal at home.
    Jeremiah Bonds likes this.
    01-04-2017 04:55 PM
  14. recDNA's Avatar
    yeah I'm pretty sure. I can see a drop in battery life as opposed to when I'm on my network.. Maybe the wifi at my office doesn't bode well with my phones?
    Last night my wifi was off, in fact it was off all day, I went from 100 percent at bedtime to 98 percent when I got up but batter use said 1 percent of battery was used by wifi! I double checked. Wifi is off. Weird.
    Jeremiah Bonds likes this.
    01-06-2017 12:19 PM
  15. B. Diddy's Avatar
    Last night my wifi was off, in fact it was off all day, I went from 100 percent at bedtime to 98 percent when I got up but batter use said 1 percent of battery was used by wifi! I double checked. Wifi is off. Weird.
    Is wi-fi scanning turned on? That can be found in different locations depending on the phone On my Nexus 6P, it's in Settings>Location, then Menu>Scanning>Wi-Fi Scanning. On the Note5, it's in Settings>Privacy>Location>Improve Accuracy​. Not sure where it is on the V20.
    TNCattleDog likes this.
    01-07-2017 12:35 AM
  16. recDNA's Avatar
    Is wi-fi scanning turned on? That can be found in different locations depending on the phone On my Nexus 6P, it's in Settings>Location, then Menu>Scanning>Wi-Fi Scanning. On the Note5, it's in Settings>Privacy>Location>Improve Accuracy​. Not sure where it is on the V20.
    Yes it is on. Perhaps. that explains it. Good catch. What do you think of using Qualcom lZat to improve location and save power. I use location every day in navigation​ so it isn't worth shutting it off just to turn scanning back on.
    01-07-2017 12:42 AM
  17. B. Diddy's Avatar
    I've found that GPS without wi-fi scanning works just fine for precise location, so if you don't mind having Location set to High Accuracy all the time, you probably won't notice any difference in precision with wi-fi scanning off. Sorry, I don't know much about iZat -- here's an article, in case you want to know more: What is the Qualcomm iZat in Android's Location Settings
    01-07-2017 12:50 AM
  18. Brent Michael's Avatar
    I just turned both WiFi scanning and Bluetooth scanning in location settings so that should help some. I always, well almost always, turn WiFi off when I'm not at home. I just hate it constantly searching for crap. I used to use the smart settings for it but it was so unreliable that I stopped.
    01-09-2017 02:32 AM
  19. TNCattleDog's Avatar
    I use IFTT to manage my WiFi and it seems to make a difference turning it off when I'm not connected at work and at home. I also use "high accuracy" for location, but I have not turned off wifi and bluetooth scanning...which I will try today.

    Part of my reasoning for turning it off when not at home or work, is that I don't want it to try to connect to all the open wifi networks along the way while I am driving...including the many hotspots in peoples cars that are set to open/available.

    Funny thing is depending on which side of my office I am on, (poor wifi and good wifi) it does make a difference in my battery life.

    That said, I am in a good 4G LTE area so I can usually finish out a busy day with about 3.5+ SOT and 15 hours of use with about 30% battery remaining.

    David
    01-09-2017 06:48 AM
  20. caveman84's Avatar
    Is creating tons of threads a thing nowadays?
    01-10-2017 01:06 AM
  21. anon(782252)'s Avatar
    Is creating tons of threads a thing nowadays?
    It's so easy even a caveman can do it.
    TNCattleDog, RaRa85 and pegleg96 like this.
    01-10-2017 01:17 AM
  22. B. Diddy's Avatar
    Is creating tons of threads a thing nowadays?
    What are you referring to?
    01-10-2017 02:33 AM
  23. recDNA's Avatar
    Is wi-fi scanning turned on? That can be found in different locations depending on the phone On my Nexus 6P, it's in Settings>Location, then Menu>Scanning>Wi-Fi Scanning. On the Note5, it's in Settings>Privacy>Location>Improve Accuracy​. Not sure where it is on the V20.
    If I shut off wifi does the setting keep wifi on during sleep eat battery life?
    01-14-2017 11:27 AM
  24. Matty's Avatar
    Without a doubt utilizing Wi-Fi instead of your cellular connection extends your battery life a lot. Especially if you have low signal strength where you live. Love using it.

    A droid a day, keep the apple away.
    01-14-2017 12:17 PM
  25. recDNA's Avatar
    Without a doubt utilizing Wi-Fi instead of your cellular connection extends your battery life a lot. Especially if you have low signal strength where you live. Love using it.

    A droid a day, keep the apple away.
    Not in my experience. In fact battery shows wifi using battery even when phone is sleeping and wifi is turned off! I get 3 or 4 bars of LTE at home and I have udp so I usually shut off wifi at night. With wifi off it annoys me to see it uses battery.

    My wifi signal may not be great where I leave my phone overnight. Router is at other end of house on a different floor. I also only use the fast wifi channel (5 GHz) which doesn't have as much range as the slower.
    01-14-2017 12:28 PM
48 12

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