Hi,
I'm wondering some things to optimize my battery life, but couldn't find any answers so far:
1) When Wifi and APN both are ON, Wifi will get priority. But the APN-setting is actually still on. Will it drain the battery, or should I always turn APN off when Wifi has been connected?
2) I have set Ultimate Juice (or Juice Defender) to turn on APN every 10 minutes during 1 minute to check for updates. But when I turn off APN, Juice Defender can't turn APN on himself to check for updates. That means that I have to remain APN ON. Doesn't that drain the battery, or is Juice Defender turning APN off on his own way?
3) I noticed that when the screen is off in standby, Android will turn off Wifi and APN. People are saying you should turn off APN and Wifi when not in use, but since Android turns both off while screen is off/standby mode, what's the use of turning both off manually? I think you could even turn them on all the time since they will get turned off when the screen goes black.
4) e.g. You're in a situation without any internet access. Apps like the Friends Stream, or Mail want to check for updates every 5 minutes. the consequence is they can't update because there's no internet connection. Does that action always drain the battery some more?
wtf no one??
under the wi fi advanced settings.. you can set wifi to never sleep... this should mean that your not using the apn connection...
I think apps try to update and if they do not succeed, it will be cancelled. I doubt the apps will continously check for updates until they get a fix. Same with Weatherbug. I sometimes see Weatherbug last updated hours ago, even when I have had internet access for the past hour (I have set it to update every hour). That was when I had unchecked 'enable always on mobile data'.
There are options available for wifi under advanced menu to set it to always stay on, or shutdown after 15 mins of sleep.
There is also an option available to always have data connection on. This will keep data connection alive even if phone is set to sleep.
Do you mean "mobile data connection" everytime you call it "APN"?
There's WiFi and that; two ways to access the net which pull power. WiFi can be disabled quickly and easily through the widget. So can the mobile data network: http://yfrog.com/0ymobilewidgetp
Leaving it to 2G when you don't need 3G or when 3G reception is bad saves much power. I'll need to do more experimentation before I can answer your other qs with assurance.
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- Sent via my HTC Desire -
I'm getting high battery drain from Google Services both on my phone (rooted 4.0.2) and Xoom (rooted 4.0.3). It only seems to occur on Wi-Fi, where every time I turn my screen on, the status bar icons have turned to grey.
When this happens I see frequent wake ups in battery usage and Google Services at over 20%.
I've had this problem for a while now but it seems to be dependent on the Wi-Fi network I'm on. I get it constantly on a Netgear DGN1000 from Virgin, but not on either of the other routers I've tried on TalkTalk broadband at home.
Could this be a broadband or router problem?
Sent from my Galaxy Nexus using xda premium
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
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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.
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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.
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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.
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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.
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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.
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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.
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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.
After updating to 5.1.1 it was working flawlessly for couple of Weekes and all of sudden my battery was draining and found out that my wifi is running on the background even though I have switch off the wifi, location, gps, and wifi advance setting for searching location with WiFi being off.
Ever since that whenever I switch on the wifi and switch off it is still running in the background until I reboot my device.
Is there anyway to fix this?
Sent from my SAMSUNG-SM-N910A using XDA Free mobile app
Hello guys. I suppose I'm not alone in this. My phone losses over 20% every night when connected to wifi network. I tested with wifi off and mobile data (4g) on, and it losses only 4%. Drain is not caused by any apps on my phone, and my wakelocks are ok(tested by GSam Battery Monitor and Wakelok detector). Phone does go into Dose mode overnight. After long period of testing and searching internet I did full wipe data/cache and install stock rom from oneplus site, and install just a few apps from playstore. It was disappointing when wifi drain continued after all I did. Also, when I turn on airplane mode, phone losses 2% overnight, so my conclusion is that wifi causes drain. If you guys have some advice for me, it would be helpful. Thank you!
Same issue here. I have tried everything (clean installs... Formatting data... Multiple roms and firmwares etc)
This is with scanning off and location off. It's Oreo related for sure as the issue dissappears when I flash Nougat
Xcal15 said:
Same issue here. I have tried everything (clean installs... Formatting data... Multiple roms and firmwares etc)
This is with scanning off and location off. It's Oreo related for sure as the issue dissappears when I flash Nougat
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I hope there will be software update soon to handle this problem.
Hi
I have the Same issue on my Huawei p20 lite with Android 8.0. I think it's definitely the software
I noticed that the Wifi drain only appears if there are many wifi networks around.
At home we have 3 networks around and my phone doesnt lose any battery over night.
At my girlfriends place there are like 25 networks around and my phone loses >20% overnight.
Realy strange.
Maybe it has something to do with wifi scanning in the background?
gamer850 said:
I noticed that the Wifi drain only appears if there are many wifi networks around.
At home we have 3 networks around and my phone doesnt lose any battery over night.
At my girlfriends place there are like 25 networks around and my phone loses >20% overnight.
Realy strange.
Maybe it has something to do with wifi scanning in the background?
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Click to collapse
Nah.. Think it's the wifi configuration on the router. When I switched ISPs, I was given a new router and the drain disappeared.
There have always been 4 wifi networks that show up on my devices.