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hey everyone, i'm wondering:
when i'm not home i have mobile data turned on. i stopped switching between 2g and 3g to save bat-life, because i felt it to be too much of a hassle...
i only turn on wifi if i want to download/update apps or mess with the dropbox.
but i want to keep my defy online to receive emails and stuff.
so, what drains the battery faster? wifi or mobile data?
i could imagine that the mobile data drains the battery less, because regarding reception and stuff, this "part" of the phone is turned on in any case...
anyway, does someone know an answer to my question?
thanks in advance.
reinsen
I took this from android-hilfe.de:
GSM/EDGE Standby 11,6 mW
UMTS Standby 18,3 mW
WLAN Standby 7,8 mW
EGDE Download 853 mW
UMTS Download 1349 mW
WLAN Download 1158 mW
seems it depends on 3G time and most of all change 3G/2G
regards
thanks mate, looks like from now on ill be switching to wifi whenever there is a known network
I think thats the best solution. btw great german forum, works perfectly with the devs here
But from my observation, in standby mode, wifi (with network) consumes twice the battery of 2g (edge). In my case, wifi consumes 1% battery every hour, while 2g consumes 1% battery every 2 hours.
elnovio said:
I took this from android-hilfe.de:
EGDE Download 853 mW
UMTS Download 1349 mW
WLAN Download 1158 mW
Click to expand...
Click to collapse
In these download wattages, it is worthwhile to consider that an EDGE or UMTS download of a given file will typically take far longer than the WLAN download. This means that the download will consume more joules from the battery.
I See my wifi has used 30% of my battery but ive been on 3G all day, does it drain the battery searching for networks?
It does use some power when searching for networks. There is probably an APP or settings that you can change to set the Freq of checks maybe. Or you can just turn of the Wifi radio when you know your not going to use it.
DroidHam said:
I See my wifi has used 30% of my battery but ive been on 3G all day, does it drain the battery searching for networks?
Click to expand...
Click to collapse
Yes it uses a lot of power if its regularly searching for networks. Especially if you're moving around and seeing dozens of WiFi spots. Just turn off WiFi when not in use, simple as that.
A lot of custom ROMs have less aggressive Wifi seeking intervals. You can usually set it manually with ease too. Lots of apps out there if you don't want to do it manually.
All that was said is true, but still I find that 30% usage for Wifi just for searching nearby networks is a little too much...
Although I haven't got anything to compare with, I always turn wifi off if I'm not using it during long periods.
Regards
I turn wifi off when it is not needed and battery life goes from one to two days.
Sent from my Galaxy Nexus using XDA App
I've been using Tasker to turn wifi on at home/work and off when I'm elsewhere. It's using cell towers to determine location, so hopefully it won't impact the battery much.
I leave wifi on 24/7, today it has used 2% of the 60% battery i've used.
I travel through london so I assume it is constantly finding new wifi signals.
Sent from Mobile..
Y5 Battery Saver .. on the market, free. Turns on/off Wifi based on known networks and cells in the area of the AP.
str355 said:
I leave wifi on 24/7, today it has used 2% of the 60% battery i've used.
I travel through london so I assume it is constantly finding new wifi signals.
Sent from Mobile..
Click to expand...
Click to collapse
I leave wifi on all the time as well, and I also only have used 2% of the 70-80% battery I used up already.
Try going into wifi settings, then advanced wifi settings, then turn off the new wifi network available notification option.
This increased my battery life slightly.
Sent from my Galaxy Nexus using XDA App
Y5 - Battery Saver helps out tremendously! I barely ever use more than 2% when home all day...although that may be a bug but I started a thread for that already.
eddie_gordo said:
All that was said is true, but still I find that 30% usage for Wifi just for searching nearby networks is a little too much...
Regards
Click to expand...
Click to collapse
That 30% displayed can be deceptive since it's based on the amount of battery discharged and not entire battery capacity.
Well wifi, when on is looking to connect to known networks. If the signal is weak it will disconnect and connect to another network near by if there is that has better signal. This process does use some battery. The biggest drain will occur when you are actively using wifi, that is when you download or upload. So the best way to save battery, is to close wifi when not needed. If however you want wifi you can set it to never sleep. This way even if the screen goes off wifi will be connected and your device wont use the 3G which is way more power hungry.
Hi,
I know battery drains faster if I have bad connection in my area. When I go in my battery option, I know the 'yellow' connection (see attached image) means i have bad connection and my battery drains faster because of that. My question is if I turn wifi calling on and turn off the data, which one will drain the battery faster? wifi calling or the 'yellow' bad connection?
Thanks.
Anyone else getting this after the update? Cell standby is absolutely killing my battery when WiFi is on. Turning it off, I'm (kind of) back to normal. I've done a factory reset, forgotten my WiFi then cleared the cache, and it's still the same. My phone was running perfectly fine before, now I regret installing the update.
I am not. I have better battery when on Wi-Fi.
Samsung Galaxy s6 Battery Drain
i have the same problem with my galaxy s6, since I made the update the cell standby is killing my battery, i use lte all the day because of that..
Battery life has been abysmal for me since the update as well. Samsung needs to fix this ****.
Sent from my SM-G925T using Tapatalk
cvsolidx17 said:
Battery life has been abysmal for me since the update as well. Samsung needs to fix this ****.
Sent from my SM-G925T using Tapatalk
Click to expand...
Click to collapse
Turn wifi on, let it connect, then go forget your connection. Reboot into recovery, wipe cache, then reboot your phone. It has worked for me so far. Cell Standby still shows up on the list but I'm only losing about 2% battery/hour with moderate texting.
It is an issue with WiFi! I have tried all the fixes found in a google search for "S6 Edge Cell Standby Battery Drain". Here is what I found from my testing:
Day 1: All day with WiFi on, with good cell coverage. Had to charge twice throughout the day, and Cell Standby was at about 40% each time I put it on the charger. Charged overnight to 100%
Day 2: All day with WiFi off, same location as Day 1. Battery never drained past 30% with the same amount of use. Cell Standby at the bottom of my list at 1%. Charged overnight to 100%
Day 3: All Day with WiFi on, using WiFi calling. (VoLTE turned off) Same result as Day 1. Had to charge multiple times throughout day and Cell Standby at 40%.
VoLTE turned off, cleared cache, factory reset. Tmobile device running 5.1.1
I think the issue here pertains to what apps are installed and not necessarily running actively.
I you have any or several social networking apps ( Fb, Skype, instagram, twitter ) you don't even have to use them because they are always busy in the background unless you setup auto stop.
I have no social networking apps installed or active so my system runs very lean, have seen cell standby but never higher than 2% or 3%.
I have ran my WiFi all day while at home and connected to a network and have gotten a full day with 20% to 10% left on the battery.
Now results would be different if you travel and aren't connected to a network.
I'm in a metropolitan area with great lte 4g signal and don't use WiFi that often and just using 4g I have gotten great battery life to the tune of 30+ hours with battery to spare.
Do some app inventory.
Pp.
Synyster06Gates said:
Turn wifi on, let it connect, then go forget your connection. Reboot into recovery, wipe cache, then reboot your phone. It has worked for me so far. Cell Standby still shows up on the list but I'm only losing about 2% battery/hour with moderate texting.
Click to expand...
Click to collapse
This has worked for me so far. I'll use the day to test whether or not it's a successful workaround solution. Thank you :good:
Synyster06Gates said:
Turn wifi on, let it connect, then go forget your connection. Reboot into recovery, wipe cache, then reboot your phone. It has worked for me so far. Cell Standby still shows up on the list but I'm only losing about 2% battery/hour with moderate texting.
Click to expand...
Click to collapse
I tried this, unfortunately didn't work for me. Battery drain is making me hate this phone with each passing day.
My issue is NOT app related.
I Factory reset, then ran two days of testing.
After factory reset, I also cleared cache again.
No social media apps configured.
Turned on phone from reset and setup google account only.
No apps installed, aside from factory apps.
My tests are with VoLTE turned off and WiFi calling turned off.
*Day 1 - WiFi off completely*
100% charge at 0700, used it all day at work and home. Cell Standby used 1% total and I ended the day at 2300 with over 50% battery remaining.
*Day2 - WiFi on all day*
100% charge at 0700, used it all day at work and home. Cell Standby used 43% total and my battery died at about 1530.
T-Mobile support stated it was a known issue, Samsung could not "troubleshoot" it properly and just wants me to ship it in for "repair". They did suggest taking my device to a "Samsung Experience Shop" in my local Best Buy. I did and they factory reset the phone. They also informed me that this is an issue with the S6 Edge, and that the factory reset is not going to resolve my issue.
T-Mobile Support Chat:
You :
First Name:
Last Name:
Account Holder Name:
T-Mobile Number: XXXXXXXXXX
Account PIN or SSN: XXXX
Business/Government Account: No
Prepaid Account: No
Reason for Chat: Phones & Devices
What can we help with: Galaxy S6 Edge, "Cell Standby" is draining my battery FAST, if I have WiFi turned on. I have factory reset device, cleared cache, turned off VoLTE, tried with and without WiFi calling turned on, it is ONLY an Issue if I am connected to a WiFi network. Doesn't matter if it's 2.4Ghz or 5Ghz.
T-Mobile : Hi!
T-Mobile : I'm sorry to know if Cell Standby is draining your battery fast when connected to WiFi. I'd be very happy to help you out!
T-Mobile : Is this for line XXXX?
You : yes
T-Mobile : All right, I'm checking on a few things. One moment please.
You : thanks
T-Mobile : You're welcome. May I have your phone's software version please? Here's how to check:
You : 5.1.1
T-Mobile : From the Home screen, tap the Apps icon.
Tap Settings.
Scroll down to 'System,' and then tap About device.
Read the baseband version on the phone.
You : I am on the most recent firmware, based on the T-Mobile support site
T-Mobile : Great! Please bear with me.
You : Baseband is G925TUVU2COF6
T-Mobile : I appreciate that, one moment please.
T-Mobile : Thanks for waiting. I checked on this further and see that this a known issue that Samsung is aware of and is hoping to get fixed by next update.
You : any timeline for this issue resolution? I don't want to use up all my data, just so that my phone will stay powered on for an entire day
You : If I turn off WiFi, my battery performs normally, and can get through about 2 days without charging ... If WiFi is turned on, I can't even get through an entire day
T-Mobile : My apologies but there is no timeline as we speak yet. One recommendation I see here is to turn off Smart Network Switching in your WiFi settings. Here's how:
T-Mobile : From the home screen, tap the Apps icon.
Tap Settings.
Tap Wi-Fi.
Tap MORE.
Tap Smart network switch.
Tap Off.
You : That is turned off
T-Mobile : Oh, I see. I apologize but we'll need to wait until the next update from Samsung. You may contact them directly at (888) 987-HELP (4357).
You : I have ... they stated I needed to send my device in for repair.
T-Mobile : Oh, we are unable to replace the phone since the issue is software related. This all started after the 5.0.1 update.
T-Mobile : This should be addressed by next software release.
You : it started the day I took the phone out of the box, 3 weeks or so ago. Got an update to 5.1.1 in the 2nd week, but the issue remains
T-Mobile : I understand where you are coming from. WiFi bug fix should be included in next software update. We are still standing by for more information from Samsung as to approximate of the release.
You : thank you
T-Mobile : You're welcome! Your patience and understanding is truly appreciated. Anything I may have missed for you today?
PanchoPlanet said:
I'm in a metropolitan area with great lte 4g signal and don't use WiFi that often and just using 4g I have gotten great battery life to the tune of 30+ hours with battery to spare.
Pp.
Click to expand...
Click to collapse
I too have great 4G signal here, and if I leave WiFi off, I also get great battery life. The issue is when WiFi is ON. No matter what, I MUST have access to a charger if I use WiFi at all throughout my day.
jnp1974 said:
I too have great 4G signal here, and if I leave WiFi off, I also get great battery life. The issue is when WiFi is ON. No matter what, I MUST have access to a charger if I use WiFi at all throughout my day.
Click to expand...
Click to collapse
That makes sense, especially if the wifi radio is scanning all the time looking for networks to connect to.
We should have the option to "turn off" wifi scanning and turn on when needed.
Pp.
Synyster06Gates said:
Anyone else getting this after the update? Cell standby is absolutely killing my battery when WiFi is on. Turning it off, I'm (kind of) back to normal. I've done a factory reset, forgotten my WiFi then cleared the cache, and it's still the same. My phone was running perfectly fine before, now I regret installing the update.
Click to expand...
Click to collapse
I had that problem since 5.01 nothing new here.
Sent from my SM-G925T using Tapatalk
Although not ideal, turning off wifi fixes the issue for me.
Any news on this issue? My phone immediately start to lag and drain out the battery when I connect it to a wifi. On cellular it works fine though. This should not be a hard one to straighten out!
Synyster06Gates said:
Anyone else getting this after the update? Cell standby is absolutely killing my battery when WiFi is on. Turning it off, I'm (kind of) back to normal. I've done a factory reset, forgotten my WiFi then cleared the cache, and it's still the same. My phone was running perfectly fine before, now I regret installing the update.
Click to expand...
Click to collapse
ok i have same problem. and only 1 way for fix it is turn off LTE. go to mobile networks >>> network mode >>> choice "WCDMA only"(4G only). it will be fine. For sure.
this problem is because software android 5.0 from GG. if can please go to SS website and report. let them fix it.
I am using my new G7 Play with a Mint Mobile SIM (T-Mobile MVNO). I am seeing much worse battery performance than my G4 Play on T-Mobile prepaid SIM, even though its battery is several years old now. I tested the Mint SIM for half a day in the old phone, before I punched it down from micro to nano SIM size. I didn't notice any significantly different battery consumption during that time, but I didn't try to carefully test for an entire discharge cycle.
I have tried to configure them the same way, with the same basic apps and battery optimization settings. For reference, the G4 Play can last 5+ days with my light usage patterns. The G7 Play seems like it cannot even last for 1.5 days. The battery ran down over 25% overnight. In the same time period, my G4 Play only showed a 2% drop.
This is with WiFi on and in range for most of the hours in the day (at work or at home). Signed into GMail, Hangouts, and Slack. Location toggled off. Bluetooth toggled off. And OSMAnd+ installed from f-droid. One difference is that I am still using the default Moto launcher on the G7 Play. I replaced it with Nova Launcher on the G4 Play in order to get rid of the annoying Google search/assistant widget that was not removable in the Nougat update. Both have Moto Display and Moto Actions active, but all the gesture/camera actions are turned off. It just has the notification peeking and active display when you bump or pick up the locked phone.
I have disabled Google Music, Movies, News, and Drive to try to match the config on the G4 Play. I also am not logged in with Chrome nor Photos but those apps are not disabled. I am still searching the Android 9 settings menus, but I don't see any more things I can adjust for efficiency. The battery usage details does not seem to tell me why it is going down so fast.
I am not sure what else to try, except to blindly experiment with disabling other built-in apps/services. There seem to be many more in the G7 Play than on the G4 Play, but I don't want to accidentally cripple the phone. Another possible difference is the G7 Play is using the 5 GHz WiFi channels instead of only the 2 GHz channels. But would that explain such a difference in power draw?
Same problem here, single sim G7 play on t mobile. Tried running in safe mode for a few hours and the drain is the same. The issue seems to be running wifi and cellular radio at the same time. Wifi signal is strong, on 5 GHz. Running only on cellular reduces the drain significantly, even with my crappy -112 dbm signal. I am guessing this is some sort of bug - on a related note, if I turn on airplane mode, and then turn on wifi, the cellular radio also turns on, and cannot be turned off via *#*#4636#*#* diagnostics screen.
Current build is PPY29.105-36
Strange. I put my phone in airplane mode and then turned WiFi back on. It indicated that cellular data was off and showed no phone network status. I then turned on WiFi calling and it showed that I was on T-Mobile WiFi Calling in the lock screen status. I left it idle like this for 20 hours and the battery discharged from 100% to 93%. Today, I will try the opposite, turning off airplane mode and WiFi and using just the cellular network.
Before this test, I did play store updates, rebooted, and then fully charged the phone. There were updates to Phone and Google apps right before I rebooted. My Phone app is at version 31.0.241960258 and my Google app is at version 9.51.10.21.arm. My phone is on US Retail channel and build PPY29.105-36.
Did your cellular radio stay off the whole time? Mine will toggle back on right before my eyes. My google app is at version 9.51.8.21.arm, phone app is the same as yours.
It stays off. I'm only looking at the toggles in the pull-down status menu at the top of the phone screen. I also have bluetooth and location toggled off. Maybe you should try changing some of the location/background scanning options? I turned off those sorts of things when I first got the phone.
Yesterday, I rebooted, recharged, and tested the phone for about 8 hours w/o WiFi, but with phone and data service on. It used a lot more power than WiFi-only from the previous day. It was projecting about 2 days left when I interrupted the test.
Then, I toggled off cellular data service. For the next 9 hours, the power consumption graph flattened out a bit. It's down to 85% now bit it is projecting 3 days left instead of 2.
Ok, figured out the cellular radio turning back on, it was having wifi calling enabled, which doesn't seem to make sense, but I digress.
So you turned on wifi calling, and the power draw was still low? Can you check your cellular radio status with the wifi radio and wifi calling on with the *#*#4636#*#* diagnostics screen?
If I remember, I rebooted with wifi calling off, put it into airplane mode, turned wifi back on, then thought to enable wifi calling. It definitely did not show the cell antenna signal icon in status, and showed "T-Mobile WiFi Calling" in the lock screen. I tested it by calling the number from another phone, and it did ring.
Today, I have continued using the phone with cell modem on for calls and wifi on for internet (but cellular data toggled off and wifi calling still disabled since before last reboot). It is now down to 79% power after 25 hours of operation and predicting 4 more days at this rate. This is more like I expected originally, and not so far off from my old G4 Play.
I am pretty confused by the terrible behavior in the beginning. It may have something to do with booting up with WiFi calling enabled. Or it might be some other strange state that cleared after a few reboots?
If I remember, I'll try to put it back in the wifi-only mode next time I am back on my home network to check that status screen you mentioned. But, I am nearly sure it is going to indicate cellular modem OFF and wifi ON using 5 GHz band.
The phone info screen behind that dial code shows this regardless of whether I am in airplane mode or not: Voice Service: In Service; Mobile radio power: on; VoLTE Provisioned: on; Video Calling Provisioned: on; Wifi Calling Provisioned: on. Because of the differences in other fields and in power usage, I don't believe the indicator about radio power means anything here. The Settings->Phone Info->SIM status screen says "Mobile network state: Disconnected" and "Service status: Voice In Service/Data In Service" when I am in airplane mode w/ wifi calling active.
From the 4636 code phone info screen, these fields change:
- Airplane mode w/ wifi calling active: Signal Strength: -1 dBm 99 asu; Data Service: Disconnected; Voice Network Type: Unknown; Data Network Type: IWLAN.
- Cell on w/ wifi calling active: Signal Strength: -112 dBm 28 asu; Data Service: Disconnected; Voice Network Type: LTE; Data Network Type: IWLAN.
- Cell on w/ wifi calling disabled but wifi on: Signal Strength: -113 dBm 27 asu; Data Service: Disconnected; Voice Network Type: LTE; Data Network Type: LTE.
- Cell on w/ data on and wifi off: Signal Strengh: -110 dBm 24 asu; Data Service: Connected; Voice Network Type: LTE; Data Network Type: LTE.
And the IMS status screen further down under the three-dot menu changes:
- Airplane mode w/ wifi calling active: Voice over LTE: Unavailable; Voice over WiFi: Available.
- Cell on w/ wifi calling active: same as previous.
- Cell on w/ wifi calling disabled but wifi on: Voice over LTE: Available; Voice over WiFi: Unavailable.
- Cell on w/ data on and wifi off: same as previous.
It's only in the 4th config that I actually see "LTE" on the network signal icon in the phone status bar on the home screen.
I should also note that I set the wifi calling settings to wifi preferred/wifi for both choices.
Thanks for all of the troubleshooting info.
I guess this shoots down my simply both radios on theory. You still get bad drain when wifi and cell data are both on?
I gave it about 18 hours to find out. But no, it now seems to have little effect to turn on cell data and wifi together. The phone is continuing to have a pretty good standby power drain with WiFi, cell voice, and cell data turned on.
I'm down to 52% battery and it has been 3 days it was last charged. The power graph shows nearly the same slope over the last couple days whether I turned cell functions on or off. Where there were dips, I think it may be partly that I took the phone away from WiFi, so it started actually using LTE data, and also that I had the screen on some around those times to look at settings and respond to some texts etc.
I'll keep playing with it for a while, but I am also running out of ideas. What's frustrating is that the battery consumption info listed just cellular standby as the originall high power use, not some other app or OS function that would be easier to explain as software-caused.
Just about the only settings I have left to re-test are WiFi calling (with cell modem on), Bluetooth, and Location. I suspect that the location was on constantly in the first day because I wasn't used to the Pie status bar. In my G4P running Nougat, the location icon would be visible in the status bar whenever it is on. But on the G7P, it doesn't seem to indicate anything unless you open the drawer and look at its toggle state.
I worked my way all the way back to having everything toggled on... cell voice, cell data, wifi, wifi calling, and location. It dropped from 100% to 96% in 12 hours overnight, and estimates 10 days remaining. This is far different than the 20-25% drop I saw in the first days.
The only explanations I can think of for this whole experience so far:
1. The power use was due to application behaviour, but the usage details screens were not assigning blame correctly.
2. The battery charge estimates themselves were wildly incorrect in the first days.
3. The phone is configured to waste power out of the box, and has to "learn" to conserve power when idle.
So, the phone seems to do quite well now. I just hope it doesn't decide to switch back to its high consumption mode when I am depending on its battery to endure like it is right now...
lightuser said:
2. The battery charge estimates themselves were wildly incorrect in the first days.
Click to expand...
Click to collapse
We know that would be an issue for sure, but the question is whether that's the only issue. I'm hoping it is.