I always wondered if the GPS ON consumes battery, i am not talking about when it actually searches for satellites and tracks your position, i mean when it's in idle mode.. doing nothing.
I've tested having the GPS disabled for a day and there was no diference in battery use that I could see.
GPS ON only means that app with GPS permissions will be able to use GPS. Setting itself doesn't do anything to GPS.
It only drains battery if app starts using GPS and in that case it's probably what you want.
Screatch said:
I always wondered if the GPS ON consumes battery, i am not talking about when it actually searches for satellites and tracks your position, i mean when it's in idle mode.. doing nothing.
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What the others said. I have mine on permenantly and I don't notice any extra drain. I keep it on for where's my droid - despite the fact it doesn't work indoors - where i'm sure it'll be 99% of the time.
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does leaving the gps on actually kill battery life more? I was under the impression that even if you leave gps on, its only used when an application uses and when it is finished, it turns off by itself. please correct me if i'm wrong.
kwazytazz said:
does leaving the gps on actually kill battery life more? I was under the impression that even if you leave gps on, its only used when an application uses and when it is finished, it turns off by itself. please correct me if i'm wrong.
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I leave GPS, Bluetooth and wifi on all the time and only loose about 1% battery per hour in standby.
I too would like to know this, it makes sense to me in theory.
Im going to say it doesn't kill battery unless you use it. Based on test ive done myself using "wireless networks" for location actually drains battery faster than just using gps. GPS only activates when its needed and turns off after a few secs; mobile networks is ALWAYS updating your location thus killing the battery faster. Ive done this test for years on many android devices and it was same results. Like i said, i may be crazy but thats my theory on it....
http://img845.imageshack.us/img845/1046/20110911195533.jpg
The GPS receiver remains in "standby" if you turn it on but aren't actively using an app that requires it. Assuming you are using an application that requires the GPS receiver to be on, most likely the screen is going to be on as well. Even in this "on" configuration, the display is going to be the battery drainer, not the GPS receiver. Standby just means that the last position fix is retained for faster sat lock the next time around. GPS standby is identical to GPS off in power requirement.
I never did understand why people disable GPS, Bluetooth, etc. You might get an extra 12 minutes out of a single charge by doing so. I'd rather have instant access to location-based search, Bluetooth headset use, and everything else that makes a smartphone, well, "smart."
kennypowders said:
Im going to say it doesn't kill battery unless you use it. Based on test ive done myself using "wireless networks" for location actually drains battery faster than just using gps. GPS only activates when its needed and turns off after a few secs; mobile networks is ALWAYS updating your location thus killing the battery faster. Ive done this test for years on many android devices and it was same results. Like i said, i may be crazy but thats my theory on it....
http://img845.imageshack.us/img845/1046/20110911195533.jpg
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i think you may be right, as if you just leave wireless/mobile networks on and not gps, when you use your google maps you dont get the gps icon on the top so you dont know when its actually on or off. whereas if you have only the GPS checked you will see it on when its being used and off when its not.
Dismissing things like sync and widget updates, etc., which option do you think ultimately saves more battery life? On the one hand you have wifi constantly locked on even if the phone is in deep sleep for hours. On the other hand, if you find that you use the phone quite a bit in spurts, wouldn't it seem that the wifi constantly turning on and connecting, then turning off during sleep, would actually use more power than just being constantly connected?
It might be a bad analogy but I liken it to when you turn a car off and then on as it uses more fuel compared to just letting it idle for a few minutes instead. Would this be the same with power consumption on our phone?
I've seen many articles that indicate Wi-Fi is much better on battery life then using 3g. So I've been running my like that for awhile. Not sure about the results though. Wi-Fi is now my second biggest battery drain, behind Display.
Mine is set to stay ON always. I get better battery life when using wifi.Some say the opposite, try both ways and see which works best for you.
Sent from my SAMSUNG-SGH-I777 using XDA App
I have the policy set to sleep when off. Even when I do use my phone regularly, I find that at times its going to help you save more battery life without having wifi constantly scanning for access points.
Red5 said:
I have the policy set to sleep when off. Even when I do use my phone regularly, I find that at times its going to help you save more battery life without having wifi constantly scanning for access points.
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Just up the scan interval.
Standby drain of our wifi chip is VERY low, less than 1/10 that of the original GalaxyS series if power_profile.xml is correct - and it's FAR more power efficient to transfer data over wifi than cell radio on our phones for a variety of reasons.
what are others thoughts on some of the pros and cons of this update? i'm thinking it will actually save battery to have wifi 'always on' in standby mode rather than repeatedly switching between a on/off state which uses more energy.
It will definitely eat more battery if it's always on under the lockscreen...
Also there is an option to deactivate notifications when new wifi hotspots are around.. if you are about battery life you should deactivate this..
Ikkari said:
It will definitely eat more battery if it's always on under the lockscreen...
Also there is an option to deactivate notifications when new wifi hotspots are around.. if you are about battery life you should deactivate this..
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I keep my Wifi always on because it consumes the least battery (vs 3G, LTE, etc).
If I don't play games on my Lumia 920 the battery can last 3 days.
This update is freezing my phone Dunno why but I have tested it. I occasionally get a freeze now and then, but when the keep wifi is on, it is like every couple of hrs... Will test it more though.
Ikkari said:
It will definitely eat more battery if it's always on under the lockscreen...
Also there is an option to deactivate notifications when new wifi hotspots are around.. if you are about battery life you should deactivate this..
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Wrong unless your phone is using 5-year old wifi chip.
Correct me if I am wrong, but is the wifi on this phone an on demand type system? From what I see on mine, the wifi unless being used for an actual update or downloading other content goes to sleep when the lock screen is on. It then wakes up if there is an update pushed to it or if something else needs it or of course if you unlock the phone. At least that is the way it appears that mine works.
Also your radio service are going to use much more power than the wifi will as they are higher power transmitters and receivers. There is a reason wifi only works within a few hundred feet and radio works for several miles that is due to the power difference. Of course with more power you get more battery consumption.
In the case of conserving the battery you are better off to use wifi when possible, leave it on and let the phone control it.
In my experience keeping Wifi on permanently lead to a remarkable decrease in battery life. That will depend on where you are though. If I have it sitting at home where it has Wifi connectivity it's likely that I would see better battery life because all actual transfers will happen via Wifi. At work though it can't connect to the Wifi network (private phone, work network) and so I have 3G running anyway while the phone keeps looking for Wifi networks to connect to.
The problem boils down to the fact that while you can switch off Wifi completely because everything can still work using 3G you can't switch off the phone part completely because only data is done over Wifi but you still need the mobile connection to receive calls/SMS.
I would suggest to anyone to simply try out what works better for them. For me it worked best to let Wifi deactivate automatically as it had been the default in WP since WP7 came out.
foxbat121 said:
Wrong unless your phone is using 5-year old wifi chip.
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Maybe Wifi is using less power when you are downloading something and need a lot of data... But when your phone is idle... Constant on Wifi is using far more battery power than 3G that checks for email or weather every 1-2 hours...
Simple enough...if you are consistently in an area with a WiFi signal, leave WiFi "always on"...it will consume less battery. If you're in an area without WiFi signal then turn it off, as searching for a signal will help run your battery down.
Sent from my LG-E970 using Tapatalk 2
Ikkari said:
Maybe Wifi is using less power when you are downloading something and need a lot of data... But when your phone is idle... Constant on Wifi is using far more battery power than 3G that checks for email or weather every 1-2 hours...
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Again, simply not true unless you are using a 5-year old phone. Even if you are in an area that has no wifi connection, the extra drain caused by searching for Wi-Fi networks is minimum in a modern OS and modern chipset. I have left all my android phones (the ones that offer Wi-Fi always on feature for a few years now) wifi on all the time. Never have felt much difference vs if I turn wifi off. It annoys me that WP didn't offer this capability for so long.
foxbat121 said:
Again, simply not true unless you are using a 5-year old phone. Even if you are in an area that has no wifi connection, the extra drain caused by searching for Wi-Fi networks is minimum in a modern OS and modern chipset. I have left all my android phones (the ones that offer Wi-Fi always on feature for a few years now) wifi on all the time. Never have felt much difference vs if I turn wifi off. It annoys me that WP didn't offer this capability for so long.
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I tested a lot of phones Android and WP, my experience is that wifi always on is a battery killer... And I'm talking about state of the art hardware... It's just my 2 cent's but i keep it off...
When I don't charge overnight and wifi is always on my battery drops about 40%
with only 3G on about 8-10%
Foxbat: you can leave it any way you want to do it. I'm not saying Microsoft should remove the feature. But in my experience keeping Wifi on kills the battery faster. I tested it for my use case with always on and with Auto and in the end: Auto it was for me.
The best advice you can give to people is: try it out yourself and you will see what works best for you.
A picture or two says it all. See the attached files for my two testing: one with wifi always on for 24-hour and one with Wi-Fi in auto mode for 24-hour:
The right picture shows 0.0%/hour under current discharge rate... pretty impressive
Ikkari said:
The right picture shows 0.0%/hour under current discharge rate... pretty impressive
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The keyword is 'Current' -- means at that moment. You can derive the same thing from the left in various sections. The key here is that I don't see any discernible difference. Certainly not a battery killer in any sense as you claimed.
If you look at the first 12-hour period of both chart (when the phone is mostly sleep and not used), the result is almost identical. FYI, there are three push emails connected all the time: Hotmail, GMail and Corporate Exchange Email.
Yes the keyword 'Current' -- means at that moment... so your phone is not discharging although your screen is on... Very accurate app...
Ikkari said:
Yes the keyword 'Current' -- means at that moment... so your phone is not discharging although your screen is on... Very accurate app...
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So, what you saying is that if you have the screen on, you will see your battery percentage drop immediately? You should return your phone if that is the case.
Battery app get its information from the phone OS reporting. If the OS reported the same battery percentage over a short period of time, the discharge rate won't be anything other than zero. That's limitation of the platform, not app.
Instead of criticize the app which is not the point of the post, why don't you post your findings where leave Wi-Fi always on kills your battery?
it' % per hour... and your phone is using currently using 0,0% per hour so if you leave it like that it will run for ever... so where is the mistake?
Ikkari said:
it' % per hour... and your phone is using currently using 0,0% per hour so if you leave it like that it will run for ever... so where is the mistake?
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% per hour is a unit of measurement. It doesn't mean you have to take one hour to measure it in order to claim its rate. That will be average rate on that hour, not current rate which is meant to see what your current usage pattern is. It can't be used to predict your battery life. If you notice that when you take your phone off the charger, it will stay on 100% for quite some time before it starts to drop. Does that mean your phone battery can last forever? Think about it before post these ridiculous statements.
Foxbat - you are trying to tell us how our devices should behave while we are telling you how they actually behave in the real world out there. You can repeat your 5 years story as often as you want to but it clearly doesn't live up to the factual reality we experience every day and I guess after trying it out with different ROMs on the 920 and leaving all other settings the same I know the effect it had pretty well.
Nice to know though that you are having a different experience with different devices.
I have read the other battery problem posts and haven't seen that anyone has reported similar problem to mine...
Typically I have a full day of use with my Gear S (BT on; wifi, mobile and gps off) and come home with about 45-60% battery.
However, about once a week I have had it suddenly chime with the low battery alert after only 2-3 hours, same settings!
What is going on? Notifications from Google Now are kind-of excessive (once an hour), but don't have any special apps installed except Watch Styler and Zooper wearable widgets. Anyone else with random poor battery performance?
groovekids said:
I have read the other battery problem posts and haven't seen that anyone has reported similar problem to mine...
Typically I have a full day of use with my Gear S (BT on; wifi, mobile and gps off) and come home with about 45-60% battery.
However, about once a week I have had it suddenly chime with the low battery alert after only 2-3 hours, same settings!
What is going on? Notifications from Google Now are kind-of excessive (once an hour), but don't have any special apps installed except Watch Styler and Zooper wearable widgets. Anyone else with random poor battery performance?
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Mine has better battery life on some days than others. I haven't had it that long but all of my settings remain the same, but its definitely not as drastic of a difference.
Hmmm, wish it was that way for me. I'm sure one of apps is hanging in the background after being triggered or opened, though not sure which one or what else it could be. :-/
Same Problem
When I am work, my battery dies in less than 8 hours even with VERY little use. When I am away from work (weekends, etc.), my battery will go all day with phone calls and texts and even GPS usage. I'm wondering if it's related to the Wi-Fi or cell signal I get in my office. I have Wi-Fi turned off on the watch but it made no difference. Something must be "active" to cause it to drain that fast! Less than 8 hours with very minimal use.....WTF??????
toddkageals said:
When I am work, my battery dies in less than 8 hours even with VERY little use. When I am away from work (weekends, etc.), my battery will go all day with phone calls and texts and even GPS usage. I'm wondering if it's related to the Wi-Fi or cell signal I get in my office. I have Wi-Fi turned off on the watch but it made no difference. Something must be "active" to cause it to drain that fast! Less than 8 hours with very minimal use.....WTF??????
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Is your mobile network on the watch set to auto or always On? Maybe you can try turning it off and see if it helps save battery life..
I agree with the post about turning your cellular data off as the watch will constantly try to get information and if it is a weak signal it causes battery drain.
Well ever since i switched the cellular data to edge my battery consumption it reduced to almost blue tooth levels...about 3-4 % per hour [emoji2] i can can have it remotely connected all day with out any problems.
Sent from my iPad using Tapatalk
groovekids said:
I have read the other battery problem posts and haven't seen that anyone has reported similar problem to mine...
Typically I have a full day of use with my Gear S (BT on; wifi, mobile and gps off) and come home with about 45-60% battery.
However, about once a week I have had it suddenly chime with the low battery alert after only 2-3 hours, same settings!
What is going on? Notifications from Google Now are kind-of excessive (once an hour), but don't have any special apps installed except Watch Styler and Zooper wearable widgets. Anyone else with random poor battery performance?
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Click to collapse
I've notice that some clock styles are huge battery drainers and mobile data on, eats up your battery like crazy, also motion. BATTERY IS THE ONLY BIG DISAPPOINTMENT THIS WATCH HAS
For me the trick was to never turn my watch off! I now put it in airplane mode overnight and deselect in the morning. I'm still not sure what causes my problem, but powering up the watch would result in about 20% battery loss per hour. I think it is a software loop running in the background after the watch engages in system update check. Now I get through the day with about 50% battery remaining and can use motions and even always-on.
New LG V10 here. I got the European model 960a. Everything was fine at first, then I started getting a massive battery drain. Looking at the stats, it says that my GPS is pretty much always on (even though the icon doesn't show) and that doesn't make any sense. I even removed my weather/clock widget and there's no change.
I could turn off the GPS completely, but I shouldn't have to do that. I have the exact same configuration on every other one of my Android phones and they don't have this issue, even with the weather widget in place. Is there something on this phone that pegs the GPS constantly that I'm not aware of? It's hard to pin down without root.
Turn on battery saving mode for location. That should do it.
tempurastyle said:
Turn on battery saving mode for location. That should do it.
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It probably does, but should I have to? What if I want to use my GPS to navigate somewhere? Then it's an extra step each time and no other phone I have does this. There has to be an app or process causing this.
Sent from my LG-H960 using Tapatalk