02-20-2014 07:52 AM
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  1. Riverrunner88's Avatar
    For what it's worth, I've had mine for 6 days. I unplug from the charger at 0530 and plug back in at 2200 with 25 to 30% left. It will certainly go all day for my use. I'm not a power user by any means... 20 or 30 mins on the phone, wifi when at home, 3 email accounts (2 are push), some social media (FB and twitter), about an hour of music play, taking a few photo's, and internet stuff. LTE signal is 1 to 2 bars....sometimes I see 3G so I'm guessing my LTE reception isn't that great.
    06-03-2013 12:46 PM
  2. jleebiker's Avatar
    Hmm, so I just read that actually keeping your WiFi on all the time, even when not in a spot with a connection and also keeping the WiFi radio on when the cell is in standby actually increases battery life.

    Anybody have any knowledge about this. I have my phone to shut off WiFi when the screen goes off, which I thought saved battery, but actually uses more because then the cellular network is then continuously searching and draining it.

    Maybe a reason some peoples battery isn't as good..?
    Can you cite a source? I can't imagine how having a component running would inspire LESS power consumption. Sounds like it may be anecdotal based on a new user's observations on an un-calibrated battery?
    06-03-2013 02:13 PM
  3. hopmedic's Avatar
    Actually, there were studies done (I don't have a link handy) and that's why they added the constant-on wifi with the Portico update. Prior to Portico, if the phone screen wasn't on, the wifi was off. It was found that using wifi used less power than cellular (how this doesn't make sense is a mystery to me), so they made it so that when the phone goes to sleep the wifi will stay on.

    How it matters when out and about I don't know. I leave my wifi, BT, and NFC on all the time, and don't worry about it. I have a wireless charger at my desk so I frequently leave the phone lay on it, and if I worry about it in the car (where I listen to podcasts frequently on my hour-long commute, streaming with BT), I plug in (but can't wait for the Nokia Wireless Car Charger). Admittedly, I'm charging a lot more often than most people, but that's partly because I'm at my desk all day, partly because I have a long commute, and partly because I'm battery-level OCD. I don't judge the phone for that, though - that's MY defect.
    06-03-2013 02:37 PM
  4. Serious Tone's Avatar
    06-03-2013 02:55 PM
  5. jleebiker's Avatar
    I can easily see were WiFi component could, in theory, use LESS power. Let's say you're in a marginal area for cell signal. The cell adapter is constantly going to be working to adjust power up and down to get the best signal possible. If your WiFi is a typical home WiFi router, you will have good to excellent signal and it won't be modulating to try and get a good signal.

    I'm just saying that, all things equal, if you were to run a test, and compared power consumption with the WiFi components ON vs WiFi components OFF, I can't imagine having them ON would consume LESS power.
    06-03-2013 03:11 PM
  6. Serious Tone's Avatar
    Not necessarily saving power just because WiFi is on, but having it on so that it can connect to a network should you be near one and get off the cellular network asap.
    06-03-2013 03:16 PM
  7. jleebiker's Avatar
    Hmm, so I just read that actually keeping your WiFi on all the time, even when not in a spot with a connection and also keeping the WiFi radio on when the cell is in standby actually increases battery life.
    So you're NOT saying it actually increases battery life correct?
    06-03-2013 04:15 PM
  8. jleebiker's Avatar
    Actually, there were studies done (I don't have a link handy) and that's why they added the constant-on wifi with the Portico update. Prior to Portico, if the phone screen wasn't on, the wifi was off. It was found that using wifi used less power than cellular (how this doesn't make sense is a mystery to me), so they made it so that when the phone goes to sleep the wifi will stay on.

    How it matters when out and about I don't know. I leave my wifi, BT, and NFC on all the time, and don't worry about it. I have a wireless charger at my desk so I frequently leave the phone lay on it, and if I worry about it in the car (where I listen to podcasts frequently on my hour-long commute, streaming with BT), I plug in (but can't wait for the Nokia Wireless Car Charger). Admittedly, I'm charging a lot more often than most people, but that's partly because I'm at my desk all day, partly because I have a long commute, and partly because I'm battery-level OCD. I don't judge the phone for that, though - that's MY defect.

    I see alot of similarities in how you charge your phone Hop and myself. I have a wireless charger on my desk at work, but usually only put it there when it NEEDS a charge. I tyically leave it off the charger since I am still paranoid about the "memory affect". I know my phone isn't supposed to get the memory effect, but I'm still paranoid about it.
    I charge mine up in the car as well since I have an hour commute each way. It is nice though NOT to have to charge it if I don't want to. I now have options and am not tied to a charger. I think I will be doing more "lving" with the phone than always stressing over it's charge levels.
    06-03-2013 04:34 PM
  9. jleebiker's Avatar
    Woah! That was my 500th post! Woah!!!
    06-03-2013 04:35 PM
  10. Serious Tone's Avatar
    So you're NOT saying it actually increases battery life correct?
    I might have worded mine wrong, especially since I hate typing from touch screens, but I am saying it DOES increase battery life. Basically by cutting the cell network off from draining it as it would.

    Read that link I posted, it explains better.
    06-03-2013 04:58 PM
  11. jleebiker's Avatar
    I read the link. I think I'm just going to keep my WiFi on all the time and not worry about it. My battery life is OUTSTANDING and I see no reason to mess with it. ;-)
    06-03-2013 05:15 PM
  12. Serious Tone's Avatar
    Same here. Except mine has been good at best, so far.
    06-03-2013 05:37 PM
  13. carajean's Avatar
    So today for some reason. I took my phone off charge at 4:12am because the full battery notification woke me. I went back to sleep. Woke up at 6:30 my battery is down to 25%. 😠

    This is new and up until today my battery has been great.
    06-04-2013 06:25 AM
  14. carajean's Avatar
    Ok so I went back and read the updated thread since the I first posted. It seems that it is recommended to keep wifi on? I did not have wifi on when my battery drained super fast. I dont have wifi at work so I am so use to keeping it off thinking it will drain battery just searching. Also there is a issue with having wifi on when it is unable to connect with spotify.
    06-04-2013 07:12 AM
  15. Serious Tone's Avatar
    Now that's the kind of battery life I was expecting!

    wp_ss_20130604_0001.jpg
    jleebiker likes this.
    06-04-2013 08:14 AM
  16. hopmedic's Avatar
    I see alot of similarities in how you charge your phone Hop and myself. I have a wireless charger on my desk at work, but usually only put it there when it NEEDS a charge. I tyically leave it off the charger since I am still paranoid about the "memory affect". I know my phone isn't supposed to get the memory effect, but I'm still paranoid about it.
    I charge mine up in the car as well since I have an hour commute each way. It is nice though NOT to have to charge it if I don't want to. I now have options and am not tied to a charger. I think I will be doing more "lving" with the phone than always stressing over it's charge levels.
    I leave mine sit on the desk if I'm at my desk, since the vibrator doesn't vibrate enough for me to feel it in my belt case. It would be nice if someone would invent a belt case with its own vibrator, since phone vibrators seem to be getting weaker (or my sensory nerves are getting less sensitive with the years ). Anyway, since I have it sitting on the desk, why not on the charger, right?

    I have a shelf on my desk that I made using 2x4s on edge for the stand, and 1X6s for the shelf, to raise my monitors up, so my chiropractor would be happy. I keep meaning to take it home so I can route out the bottom and put the charger underneath. That'll make the shelf look even cleaner, while still charging my phone.

    Ok so I went back and read the updated thread since the I first posted. It seems that it is recommended to keep wifi on? I did not have wifi on when my battery drained super fast. I dont have wifi at work so I am so use to keeping it off thinking it will drain battery just searching. Also there is a issue with having wifi on when it is unable to connect with spotify.
    If you're in an area where you can connect to wifi, it is recommended to leave wifi on as it uses less power than cellular data, so yes, this will give you longer battery life.

    As for when you're away from wifi, I'm not sure how it works. Of course, having it on will use more power, but how much is the question? Does it stay searching? I doubt that. Does it poll now and then? This would be my guess. I leave mine on all the time, even with no wifi at work, but as noted above, I'm charging more than the average person, so I really can't tell you how much of a difference it makes to leave wifi on. But like I said, if you're in a place where you can use wifi, you'll definitely get better battery life by leaving wifi on.
    06-04-2013 08:25 AM
  17. boxa72's Avatar
    I'm a little worried.. I just got a new 928 a day ago.. first thing out of the box, I ran it til the battery was goners. Then I charged it to 100% for its very 1st charge.. took about 2hrs give or take, don't recall exactly.. Unplugged it, then I spent some time loading apps over WiFi. I put on about 8 apps and got lazy so I stopped. The battery claimed 92% full at that time so I went to sleep.
    I woke up the next morning and the phone was off. I thought, hmm.. crash maybe, lol? No way is the battery completely sapped?! Yep, sure enough the battery was zero. I couldn't even turn on the phone. I had slept at about 1130p (batt @92%), woke up around 630a.. battery 0%. Who knows what time last night it actually went dead.

    So see how I'm worried.. granted, I don't know what happened, but it worries me that the batt went kaput in about ~7 hours of standby..

    I'm hoping a few more charge cycles opens up the battery, and that last night was a fluke, but we shall see..
    Who told you to run the battery flat when you 1st got it?? Li ion batteries don't have a "memory" like Cadmium but they can get confused about how much juice they can take on or rather the sensor in the battery gets confused. If you run the battery flat the sensor thinks that zero is full. You should NEVER run the battery to the point of switching off!!! My advice would be to get a battery discharging app, discharge it all the way from full to say 5% and your battery should be recalibrated. You should discharge your battery every now and then to get the most life out of the battery. Because the discharge gets done at a steady rate, the batteries sensor is better able to determine when its full or empty or anywhere in between. I was told this by a rep from Energizer and it apparently holds true for any rechargeable battery.


    Sent from my {Lumia 820} using Board Express
    deadwrong03 likes this.
    06-04-2013 08:28 AM
  18. jleebiker's Avatar
    Probably the authoratative source:
    How to Prolong Lithium-based Batteries - Battery University
    (This is a long article and full of charts and graphs, but can be summarized by this one paragraph...
    "Similar to a mechanical device that wears out faster with heavy use, so also does the depth of discharge (DoD) determine the cycle count. The shorter the discharge (low DoD), the longer the battery will last. If at all possible, avoid full discharges and charge the battery more often between uses. Partial discharge on Li-ion is fine; there is no memory and the battery does not need periodic full discharge cycles to prolong life, other than to calibrate the fuel gauge on a smart battery once in a while. Read more about Battery Calibration.)
    06-04-2013 01:52 PM
  19. jleebiker's Avatar
    I fell asleep last night and forgot to put he 928 on its charger. Wifi, Cellular, BT, GPS all on all night. I made sure that I backed out of all apps so that when I hit the back button, no apps came up. I have 7 email accounts all set to notify as soon as I get an email. FB and Twitter apps installed. I only have a few apps allowed to run as a Background Task.

    Only lost 2% over the course of 5+ hours sleeping.
    06-04-2013 03:17 PM
  20. WizeGuyDezignz's Avatar
    I'm happy to see all of the responses in this thread!! How do I go about to try and get this thread stickied??
    06-04-2013 04:09 PM
  21. hopmedic's Avatar
    I'm happy to see all of the responses in this thread!! How do I go about to try and get this thread stickied??
    I've asked that question before, myself, only to not find the answer. Someone please post an answer.
    06-04-2013 09:02 PM
  22. boxa72's Avatar
    I fell asleep last night and forgot to put he 928 on its charger. Wifi, Cellular, BT, GPS all on all night. I made sure that I backed out of all apps so that when I hit the back button, no apps came up. I have 7 email accounts all set to notify as soon as I get an email. FB and Twitter apps installed. I only have a few apps allowed to run as a Background Task.

    Only lost 2% over the course of 5+ hours sleeping.
    yeah it's mainly tha screen that chews juice but in sleep mode they will last heaps
    06-05-2013 04:31 AM
  23. Eric4Smith's Avatar
    Can I ask what any one's charging and discharging rate is just so I can have some reference to mind?
    06-05-2013 08:54 AM
  24. jleebiker's Avatar
    Can I ask what any one's charging and discharging rate is just so I can have some reference to mind?
    Using the app Battery Status, it reports that my average discharge rate is about 7% and my charge rate is about 42%.
    06-06-2013 10:36 PM
  25. psiu_glen's Avatar
    I think the vibe on phones is getting weaker, I can definitely miss my Trophy buzzing at times (especially for email/text etc).

    Just bring in a drill and a paddle bit for your desk. Co-workers should love the rain of splinters.

    I leave wifi on and bluetooth on when using it (still stuck on my Trophy). I don't miss the fun daily games on Android of hitting toggles and tweaking constantly to get a few more minutes out of my phone.

    I leave mine sit on the desk if I'm at my desk, since the vibrator doesn't vibrate enough for me to feel it in my belt case. It would be nice if someone would invent a belt case with its own vibrator, since phone vibrators seem to be getting weaker (or my sensory nerves are getting less sensitive with the years ). Anyway, since I have it sitting on the desk, why not on the charger, right?

    I have a shelf on my desk that I made using 2x4s on edge for the stand, and 1X6s for the shelf, to raise my monitors up, so my chiropractor would be happy. I keep meaning to take it home so I can route out the bottom and put the charger underneath. That'll make the shelf look even cleaner, while still charging my phone.


    If you're in an area where you can connect to wifi, it is recommended to leave wifi on as it uses less power than cellular data, so yes, this will give you longer battery life.

    As for when you're away from wifi, I'm not sure how it works. Of course, having it on will use more power, but how much is the question? Does it stay searching? I doubt that. Does it poll now and then? This would be my guess. I leave mine on all the time, even with no wifi at work, but as noted above, I'm charging more than the average person, so I really can't tell you how much of a difference it makes to leave wifi on. But like I said, if you're in a place where you can use wifi, you'll definitely get better battery life by leaving wifi on.
    06-07-2013 10:38 AM
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