Has anyone else noticed that WiFi drains the battery faster than LTE? Even when I have a good, working WiFi signal, my phone's battery drains much more quickly, when idle on my desk, than when I on LTE.
My battery dies twice as fast on WiFi vs Mobile Data. My phone also get overheated on WiFi.
---------- Post added at 05:47 PM ---------- Previous post was at 05:46 PM ----------
jlpotter76 said:
My battery dies twice as fast on WiFi vs Mobile Data. My phone also get overheated on WiFi.
Click to expand...
Click to collapse
Debating to switch this one out. I have already switch this phone out once.
hank863 said:
Has anyone else noticed that WiFi drains the battery faster than LTE? Even when I have a good, working WiFi signal, my phone's battery drains much more quickly, when idle on my desk, than when I on LTE.
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Are you sure that something isn't syncing over Wi-Fi like Google photos or something like that?
Easy fix, just change the setting.
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btothec said:
Are you sure that something isn't syncing over Wi-Fi like Google photos or something like that?
Click to expand...
Click to collapse
I have unlimited Data so I have it where I sync up photos/music and all others over wifi and mobile data.
jlpotter76 said:
I have unlimited Data so I have it where I sync up photos/music and all others over wifi and mobile data.
Click to expand...
Click to collapse
I have enabled those settings and this made no difference. LG G5 gets warm and the battery drains rapidly.
Sent from my VS987 using XDA-Developers mobile app
I ran into the same issue with my S7E during the first week I had it. Then a update was released and the WiFi issue went away. But yea, it was draining my battery and making my device get hot even if I was just browsing the Internet.
Maybe it's a problem with Marshmallow.
Sent from my SM-G935T using Tapatalk
Well i can't say for sure what drains my battery faster since i use wifi whenever i have access and lte when im out of wifi coverage and my battery life i would say is really good for my usage and the signal reception to the places i go
Sent from my LG-H820 using XDA-Developers mobile app
I do not have anything syncing over WiFi, at least not frequently. Also, changing the switch to mobile data setting does not help my problem. When on WiFi, the highest battery user is "Phone Idle." The issue has seemed to be less prominent over the past few days, but WiFi does still use more battery than LTE.
jlpotter76 said:
My battery dies twice as fast on WiFi vs Mobile Data. My phone also get overheated on WiFi.
---------- Post added at 05:47 PM ---------- Previous post was at 05:46 PM ----------
Debating to switch this one out. I have already switch this phone out once.
Click to expand...
Click to collapse
If your within your exchange period, I'd take advantage of that. I have no such issue with my G5 and my WiFi is always on.
So I went and switch my G5 out for a new one. Same thing with the WiFi overheating and draining the battery. I can't believe I am the only one having this issue on 3 devices.
Sent from my VS987 using XDA-Developers mobile app
Interestingly, it appears as though my WiFi battery drain issues are related to a particular network I connect to. For other networks, I don't seem to have the problem. I have no idea what the difference is.
Is it a 5ghz network by any chance?
On WIFI all day long and my battery is draining very slowly (1% per hour when idle) BUT i am not on a 5ghz wifi network.
I'm actually looking for a way to FORCE 5ghz on my wifi network for my LG G5... Did not notice any battery drain.
SPBoss said:
Is it a 5ghz network by any chance?
Click to expand...
Click to collapse
It is
Sent from my VS987 using XDA-Developers mobile app
At home I am on 5G and I don't have any abnormal battery drain. When not at home I am on LTE.
Anyway, the only drain problem I experience appears to be associated with use of Google (Now) and/or Chrome. Haven't narrowed it down yet. And with those it is on either LTE or Wifi. When I get the issue I have to force close the apps and reboot to get it to stop draining at a fast rate. At least that is what it seems like. Only had a couple occurrences since I don't use those apps too much.
karendar said:
I'm actually looking for a way to FORCE 5ghz on my wifi network for my LG G5... Did not notice any battery drain.
Click to expand...
Click to collapse
I don't see the problem there, when selecting a wifi ID, just select ID with 5ghz.
My router is/was configured with a shared SSID for 2.4 and 5 ghz... It always defaults to 2.4 instead of using 5 as a preferred connection. I had to separate my router SSID for it to work.
karendar said:
My router is/was configured with a shared SSID for 2.4 and 5 ghz... It always defaults to 2.4 instead of using 5 as a preferred connection. I had to separate my router SSID for it to work.
Click to expand...
Click to collapse
Many router will default to 2.4, as the signal is much strong, your only way is to forget the 2.4 for it to auto connect to 5ghz, but for a phone 2.4ghz is probably much better.
Related
everyone knows that using 3g as opposed to 4g when u have a choice saves a significant amount of battery life. but i read somewhere that it's possible to set your phone to use 4g ONLY as opposed to 4G + 3G if 4g isnt avil.
For people like me who live in LA, 4g is almost everywhere. That same article said that if you go with 4G only, the battery life used is almost similar to 3G only, since it's not constantly looking for both 3g/4g signals. can anyone confirm this?
i use an app called "LTE OnOff" And it 1 click takes you to a screen of options between:
1. 4g only
2. 4g & 3g (CDMA)
3. 3g (CDMA)
There's also *#*#4636#*#* for those who don't want to use an app to access the menu.
I just put mine in LTE mode with voice. I am gonna see how that is tomorrow.
I posted this app in a couple other threads. You will still incur the same battery drain with 4G+Voice as you do with 4G/3g.
oh wow okay, so then that option is pretty much useless... theres no real advantage to going 4g only i guess...
thanks for clearing that up, much appreciated.
on a side note, is a true that using launchers increases battery life roughly 20% or so?
im considering going with go launcher ex
I paid for ADW Launcher EX when I had my X2. I haven't taken the leap because I enjoy Sense right now. Someone else may be in your shoes though. Let us know in a couple days if you see a difference.
I have several times switched to 3G only on days when I was out all day in an effort to increase battery life. I saw NO improvement on 3G only. I still saw 1-2% lost per hour in standby.
spoikle said:
everyone knows that using 3g as opposed to 4g when u have a choice saves a significant amount of battery life. but i read somewhere that it's possible to set your phone to use 4g ONLY as opposed to 4G + 3G if 4g isnt avil.
For people like me who live in LA, 4g is almost everywhere. That same article said that if you go with 4G only, the battery life used is almost similar to 3G only, since it's not constantly looking for both 3g/4g signals. can anyone confirm this?
i use an app called "LTE OnOff" And it 1 click takes you to a screen of options between:
1. 4g only
2. 4g & 3g (CDMA)
3. 3g (CDMA)
Click to expand...
Click to collapse
I have that app but I have different options.
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I also have been using LTE onoff. All I use is LTE w/ voice. I gain about 4 hours of stand bye by using either LTE or CDMA compared to LTE/CDMA.
dpiddy14 said:
I also have been using LTE onoff. All I use is LTE w/ voice. I gain about 4 hours of stand bye by using either LTE or CDMA compared to LTE/CDMA.
Click to expand...
Click to collapse
I also have been using LTE onoff. All I use is LTE w/ voice. I gain about 4 hours of stand bye by using either LTE or CDMA compared to LTE/CDMA.
are you sure? because couple posts up, AtLemacks says:
I posted this app in a couple other threads. You will still incur the same battery drain with 4G+Voice as you do with 4G/3g.
You can always try the free version of juice defender, that may help.
Nope juice defender doesn't really seem to help either. As an experiment, I put my phone in airplane mode, off the charger, overnight one night while I slept. I STILL lost an average of 1-2% battery per hour.
It's weird though, the first 10%, from 100 down to 90%, will drain very slow. Once it gets past 90%, it drops rapidly, even in standby, regardless if I'm on 3G only or LTE/Voice or data off it doesn't matter.
I don't see the problem with leaving it on 3g/4g I only saw a battery drain problem when switching between both. being in a solid 4g area, I am amazed at standby time. It seems to almost not move. The phone will never standby completely lossless. 1-2% an hour? That is not bad at all. That is over 3 days. I've done 3g stuff, 4g stuff... Never noticed a difference. Big users... GPS. then netflix streaming. But those make sense because more is on, and netflix is full bore usage.
Even then, I go through 30% in an hour of streaming.
Obviously you're never going to have no battery drain on a device that is powered on because it constantly requires power to keep data in the RAM (unless NVRAM is used). 1-2% drop isn't bad at all, that's probably the least you're going to achieve.
my Incredible on a 1500 mah battery (stock EVO battery), running a leaned stock group ROM and Chad's incredikernel would lose 1% every 2-3 hours in stand by. If I needed to stretch it I would turn data off and go 4 hours before dropping a percent. I don't understand why this phone drains so much in standby even with data off. With the phone on and doing stuff on 4g sure, I never expected the battery to last like my Inc, but 2% an hour in standby with data off sucks.
I would hope that w/ 4G+3G, the phone would really have the LTE radio on for data and the 1xRTT radio on for voice, and only fire-up the EV-DO radio if LTE drops out.
With LTE+Voice, the phone probably does the same basic thing, since Vzw doesn't have VoLTE yet. So LTE radio on and 1xRTT radio on. So the only difference between the two is probably if LTE drops out, instead of firing up the EV-DO radio, you got stuck with 1xRTT for data. So if you're in a strong LTE area, you probably won't notice a difference between the two.
Although this is just a huge guess on my part.
My old MT4G when in airplane mode (and no apps installed) ran over 24 hours and only dropped 1%
I did this as an experiment as I knew I was selling the phone to my cousin the next day. It dropped the 1% after I handed it to him and he was messing with it.
All the phone had was CM7 and a good (non cyanogen) under-volt kernel that defaulted to a governor that had a screen off profile built in. It had been factory reset as well. A good ROM and kernel really helps, this just goes to show you where the real power drains are.
What this tells me is that these phones have the potential to have great standby time but for the radio and account syncing. (and any poorly written apps that cause the phone to enter an awake state too much) That is one reason that I am excited about the new S4 chips that have all the radios built in. That should help power consumption from the radio in general and even more when the phone is idle an not transmitting.
Can anyone enlighten me as to how svnet kernel wakelock drains my battery.
Lost 20% overnight, BBS shows 90% phone awake during that period mostly due to svnet.
I have JD ultimate set up, so shouldnt be running sync all night long tbh
eC1990ho said:
Can anyone enlighten me as to how svnet kernel wakelock drains my battery.
Lost 20% overnight, BBS shows 90% phone awake during that period mostly due to svnet.
I have JD ultimate set up, so shouldnt be running sync all night long tbh
Click to expand...
Click to collapse
JD uses more battery than it saves, it could be causing something to try to sync, but as its unable to it keeps the phone awake.
Try posting the dump or SS's of the BBS screen.
svnet means something is downloading, or trying to.
Try disabling JD.
That's a shame, I've bought the premium version of JD.
It should put the phone to sleep it between wifi syncs
eC1990ho said:
That's a shame, I've bought the premium version of JD.
It should put the phone to sleep it between wifi syncs
Click to expand...
Click to collapse
What is should do and what it does are worlds apart, it sounds great but mostly it causes worse battery drains.
Lots of apps are not great, and when they try to sync, they will keep bloody well trying until they manage to, mindless of the battery drain.
And with the standard sleep policy on wifi, wifi will turn itself on and off when needed, also the new wifi chipsets are not like the old ones, there idle drain is almost non existent.
Just try to keep the phone in deep sleep as much as you can (Good to see you using betterbatterstats) and you will be fine.
I will disable JD this night and compare,
Too bad I can't get a refund for JD anymore, such a shame
eC1990ho said:
I will disable JD this night and compare,
Too bad I can't get a refund for JD anymore, such a shame
Click to expand...
Click to collapse
Market refund window sucks, shame its not still 24h, you could always email them and ask for a refund and it doesn't do what it says it does, depends if they have a longer money back policy, I know some devs do.
But your best bet is to wait and see first.
I only lost about 1-2% over a 10h night so its doable.
eC1990ho said:
I will disable JD this night and compare,
Too bad I can't get a refund for JD anymore, such a shame
Click to expand...
Click to collapse
Its well posted that JD can cause battery drain though some users find it works .
Worth reading all the battery faq posts to learn better battery habits .
jje
Agreed, but one can never be sure without trying
So basicly you think the wakelock is caused by JD trying to open connection to sync but never closing them, thus not putting the phone in deep sleep?
eC1990ho said:
Agreed, but one can never be sure without trying
So basicly you think the wakelock is caused by JD trying to open connection to sync but never closing them, thus not putting the phone in deep sleep?
Click to expand...
Click to collapse
App tries to sync, JD has network turned off, app still wants to sync, keeps the phone awake trying to sync without a network connection.
Also having a huge problem with the kernel wake lock.. Lost 75% in 10 hours, with very little actual usage. Could it have to do with Toggle2g? Please help! Thanks
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torchedlh said:
Also having a huge problem with the kernel wake lock.. Lost 75% in 10 hours, with very little actual usage. Could it have to do with Toggle2g? Please help! Thanks
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Click to collapse
"wlan_rx_wake" is killing you. That's the WiFi drain bug. For me, Entropy figured out that part of the reason was due to my uVerse router spamming me with a multitude of ARP requests and thus my router was waking up my phone constantly when it should've been in deep sleep.
This happened when I was on UCKK6. I've since done a data wipe/factory reset and gone back to a UCKH7 baseband since UCKH7 seems to have teh filters working and the phone doesn't seem to respond to the uVerse router's spam.
Are you on UCKK6? If so, you might want to wipe and revert back to UCKH7.
Or if you have a uVerse router and want to keep UCKK6 (for whatever reason) - someone else here posted how to put a router behind the uVerse router. This way uVerse still handles all the IPTV stuff but the actuall wireless duties can be conducted by the 2ndary router which won't spam your phone to death.
If you search for it, you should be able to find the instructions on how to put the second router behind the uVerse router...again, assuming this is the issue you have.
Good luck.
I have unlimited data on vzw. Wodering what people have seen as less battery drain.WiFi vs 3g and WiFi vs LTE?
Sent from my VS985 4G
WiFi is the least drain
rp201 said:
I have unlimited data on vzw. Wodering what people have seen as less battery drain.WiFi vs 3g and WiFi vs LTE?
Sent from my VS985 4G
Click to expand...
Click to collapse
I never turn Wifi on. I have unlimited data and get more than a day out of the battery.
So I'm in a spot where 4g and 3g is spotty and weak. WiFi is spotty weak...disable data altogether?
Sent from my VS985 4G
rp201 said:
So I'm in a spot where 4g and 3g is spotty and weak. WiFi is spotty weak...disable data altogether?
Sent from my VS985 4G
Click to expand...
Click to collapse
I have just created a profile in Tasker where if I'm on a wifi, it automatically turns off mobile data. Once I turn off or lose the WiFi connection, it turns mobile data back on. I used almost zero battery last night for the first time since I've owned this phone. I might experiment with turning wifi off when I leave the house with another Tasker profile, too, so wifi doesn't pull juice searching for signals and hotspots. Here's to hoping this helps extend battery life; all signs so far are that it's working.
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Those two flat lines are my phone sitting idle last night with mobile data off.
Doesn't it already disable mobile data when WiFi runs on
rp201 said:
I have unlimited data on vzw. Wodering what people have seen as less battery drain.WiFi vs 3g and WiFi vs LTE?
Sent from my VS985 4G
Click to expand...
Click to collapse
rp201 said:
So I'm in a spot where 4g and 3g is spotty and weak. WiFi is spotty weak...disable data altogether?
Sent from my VS985 4G
Click to expand...
Click to collapse
If you are in an area with weak signal, you will kill the battery faster.
The radio will ramp to maximum output and that burn battery.
Phone batteries last longer in strong signal areas.
If you are in a bad area, turn off radios to preserve battery.
Chilidog said:
Doesn't it already disable mobile data when WiFi runs on
Click to expand...
Click to collapse
I don't think that it does. I've never had virtually flat battery use lines at night in any of the past 2 + weeks. There's always a steady drop and I can now attribute that to mobile data doing "something". It says it's disconnected when you're on WiFi; however, the 4G symbol is still highlighted. When I use tasker, it greys out. For some reason, I believe it's still maintaining a slight connection to the network for location or some other unknown reason. I could be wrong, buy my perception now is that this is working. I'll know better in the next few days.
battery sucks on both
Jank4AU said:
I don't think that it does. I've never had virtually flat battery use lines at night in any of the past 2 + weeks. There's always a steady drop and I can now attribute that to mobile data doing "something". It says it's disconnected when you're on WiFi; however, the 4G symbol is still highlighted. When I use tasker, it greys out. For some reason, I believe it's still maintaining a slight connection to the network for location or some other unknown reason. I could be wrong, buy my perception now is that this is working. I'll know better in the next few days.
Click to expand...
Click to collapse
this is something that has bugged me since I got this phone, my last phone was a Droid Razr Maxx and when I used the Motorola Smart Actions to disable data the 3G/4G icon would completely disappear from the status bar, but when I toggle data off with the pull down menu on the G3 I can still see it switch between 3G and 4G icons and even with both DATA and WIFI off the 11c update was still downloading and I had to keep killing it till I was able to root, so it's like it disables apps access to the data but doesn't actually power the radio down all the way.
Another thing was when I had mobile data off on my Razr and someone sent a Picture message (regular text and calls came thru fine) I would get a text with a download button on it where I would need to turn data on then download it, but on this phone it just comes straight thru.
daniel644 said:
this is something that has bugged me since I got this phone, my last phone was a Droid Razr Maxx and when I used the Motorola Smart Actions to disable data the 3G/4G icon would completely disappear from the status bar, but when I toggle data off with the pull down menu on the G3 I can still see it switch between 3G and 4G icons and even with both DATA and WIFI off the 11c update was still downloading and I had to keep killing it till I was able to root, so it's like it disables apps access to the data but doesn't actually power the radio down all the way.
Another thing was when I had mobile data off on my Razr and someone sent a Picture message (regular text and calls came thru fine) I would get a text with a download button on it where I would need to turn data on then download it, but on this phone it just comes straight thru.
Click to expand...
Click to collapse
use "green power" from the market, works like a champ, problem solved!
Hey guys .
I have an S6 Edge SM G925F
I leave my mobile network set to WCDMA/GSM (auto connect) .
Signal constantly changes from H to H+
Would this be reason I'm getting bad battery drain while device is idle ?
And if I have a 4G connection with 1 bar signal would that use less battery than the constant changing H, H + signal ?
I'm on 5.1.1
Am not rooted.
Sent from my SM-G925F using Tapatalk
Harshaanl said:
Hey guys .
I have an S6 Edge SM G925F
I leave my mobile network set to WCDMA/GSM (auto connect) .
Signal constantly changes from H to H+
Would this be reason I'm getting bad battery drain while device is idle ?
And if I have a 4G connection with 1 bar signal would that use less battery than the constant changing H, H + signal ?
I'm on 5.1.1
Am not rooted.
Sent from my SM-G925F using Tapatalk
Click to expand...
Click to collapse
Can post a screen shot of your battery usage? IF the Cell Standby percentage is high than you would need to uncheck some settings under 'Data Usage'. I have a G925A so the settings are a little bit different. The things you should uncheck would 'Calling over Wifi only' and change it to 'Perferred Cellular Nework'. Hopefully it helps.
jaytarang92 said:
Can post a screen shot of your battery usage? IF the Cell Standby percentage is high than you would need to uncheck some settings under 'Data Usage'. I have a G925A so the settings are a little bit different. The things you should uncheck would 'Calling over Wifi only' and change it to 'Perferred Cellular Nework'. Hopefully it helps.
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Will also monitor today and see .
All those settings are turned off.
Sent from my SM-G925F using Tapatalk
Nothing to worry
Harshaanl said:
Hey guys .
I have an S6 Edge SM G925F
I leave my mobile network set to WCDMA/GSM (auto connect) .
Signal constantly changes from H to H+
Would this be reason I'm getting bad battery drain while device is idle ?
And if I have a 4G connection with 1 bar signal would that use less battery than the constant changing H, H + signal ?
I'm on 5.1.1
Am not rooted.
Sent from my SM-G925F using Tapatalk
Click to expand...
Click to collapse
This is normal behavior to save battery.
The device reverts to H when no significant data is going in or out because maintaining H+ connection unnecessarily can cause battery drain. The phone is able to do this rapidly as data goes on and off rapidly. I believe H is the normal always-on connection and the H+ is the extra speed that's only active when there is actual data transfer. This behavior is called Fast Dormancy and exists in maybe all smartphones. There are ways you can switch off Fast Dormancy using secret codes and some believe this improves battery life. I don't know because I never bothered with it. There are countless articles on this, I'm sure you'll find more information on this easily.
As for the 4G issue. Holding a 4G connection when reception is low also causes battery drain which is why the device reverts to 3G/H/H+ instead. When reception is low, whether 3G/H/H+/4G, the phone has to deliver more power to the antenna to hold a connection.
I have a 4G plan, but because 4G reception is not as widespread and strong as GSM, I have turned off 4G on my phone to save battery.
Aslan01 said:
This is normal behavior to save battery.
The device reverts to H when no significant data is going in or out because maintaining H+ connection unnecessarily can cause battery drain. The phone is able to do this rapidly as data goes on and off rapidly. I believe H is the normal always-on connection and the H+ is the extra speed that's only active when there is actual data transfer. This behavior is called Fast Dormancy and exists in maybe all smartphones. There are ways you can switch off Fast Dormancy using secret codes and some believe this improves battery life. I don't know because I never bothered with it. There are countless articles on this, I'm sure you'll find more information on this easily.
As for the 4G issue. Holding a 4G connection when reception is low also causes battery drain which is why the device reverts to 3G/H/H+ instead. When reception is low, whether 3G/H/H+/4G, the phone has to deliver more power to the antenna to hold a connection.
I have a 4G plan, but because 4G reception is not as widespread and strong as GSM, I have turned off 4G on my phone to save battery.
Click to expand...
Click to collapse
Thank you for your feedback.
I'm pretty sure that viber is the main cause of my standby battery drain.
I disabled it and whoopy yesterday I got insanely good battery.
Seems like it's really using my cpu during standby.
Thanks for the info.
Am also going to try to find the secret codes to disable H/H+ and see if that helps .
Sent from my SM-G925F using Tapatalk
There is no such secret code. The only way is with SU permissions.
Aslan01 said:
This is normal behavior to save battery.
The device reverts to H when no significant data is going in or out because maintaining H+ connection unnecessarily can cause battery drain. The phone is able to do this rapidly as data goes on and off rapidly. I believe H is the normal always-on connection and the H+ is the extra speed that's only active when there is actual data transfer. This behavior is called Fast Dormancy and exists in maybe all smartphones. There are ways you can switch off Fast Dormancy using secret codes and some believe this improves battery life. I don't know because I never bothered with it. There are countless articles on this, I'm sure you'll find more information on this easily.
As for the 4G issue. Holding a 4G connection when reception is low also causes battery drain which is why the device reverts to 3G/H/H+ instead. When reception is low, whether 3G/H/H+/4G, the phone has to deliver more power to the antenna to hold a connection.
I have a 4G plan, but because 4G reception is not as widespread and strong as GSM, I have turned off 4G on my phone to save battery.
Click to expand...
Click to collapse
Is there any way to always keep it H+ instead of switching? My voip calls are dropped and internet gets stuck because of this switching. Even when using internet actively, it goes to H and ruins everything on my K3 Note.
Hi Guys!
Following Question. I got myself a new Galaxy Tab S3 and realized somehow, that i got a massiv Battery Drain. For examlple today after i finished charging i didnt used it for couple of hours and leaved it idle and locked. After 2 or maybe 3 hours i saw that the battery lost abt 6 or 7 percent. Does anyone saw some similar problem? I already tried wiping the cache.
What should i do in that case?
Turn off WiFi while sleeping...
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Set location to Battery Saver
Itchiee said:
Turn off WiFi while sleeping...
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This
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kmeleon77 said:
This
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Does the Wifi usually drains that much??
For some reason it does on this tablet. Tried freezing apps, greenify, and naptime with same issue
crash822 said:
For some reason it does on this tablet. Tried freezing apps, greenify, and naptime with same issue
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I'm having serious issues with battery life, tried with all those apps, rooted. The battery life on this thing is a disaster
jonathonalexander said:
I'm having serious issues with battery life, tried with all those apps, rooted. The battery life on this thing is a disaster
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Battery life is great as far as SOT, stupid tablet just doesn't enter sleep unless you turn off wifi. Hopefully a future update will come out that fixes this or we'll see some custom roms that have this issue resolved.
crash822 said:
Battery life is great as far as SOT, stupid tablet just doesn't enter sleep unless you turn off wifi. Hopefully a future update will come out that fixes this or we'll see some custom roms that have this issue resolved.
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But in actual use, I could be annotating a PDF file with the pen and it seems to drop really fast while the screen is on!
jonathonalexander said:
But in actual use, I could be annotating a PDF file with the pen and it seems to drop really fast while the screen is on!
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Odd. I use my tablet for media consumption and I have to charge my tablet every week & a half. I usually have it streaming videos around 75 minutes 5 to 6 days a week, so the really quick rough math is around 8 or so hours of SOT.
jonathonalexander said:
But in actual use, I could be annotating a PDF file with the pen and it seems to drop really fast while the screen is on!
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For me too when i use my tablet for writing, but i guess it's the digitizer
I experience large battery drain by wifi in sleep as well. After two/three days of idle tablet won't even power up until I plug it into the charger. Turning wifi off before putting tablet to sleep helps, but's really annoying. One would expect Samsung would fix this ASAP.
I take my earlier comment back, aqdc still has the wifi drain bug, very annoying. Also, the new ipad pro makes this look like a joke. We need an 8895 in this tab not useless qualcomm chips.
Latest AQF3 still has the bug, I guess it's time to give up on this tablet and just use my S8+ for everything. Samsung support thread in case in anyone wants to vent:
https://forum.xda-developers.com/galaxy-tab-s3/how-to/wifi-power-drain-bug-please-report-to-t3624872
---------- Post added at 08:25 AM ---------- Previous post was at 08:25 AM ----------
Latest AQF3 still has the bug, I guess it's time to give up on this tablet and just use my S8+ for everything. Samsung support thread in case in anyone wants to vent:
https://forum.xda-developers.com/galaxy-tab-s3/how-to/wifi-power-drain-bug-please-report-to-t3624872
Tried to find the root cause using wakelock detector and greenify, didn't yield much. The problem is likely at the system firmware/wifi driver level. I suggest all folks start returning their S3s , teach Samsung a lesson.
AQF5 build came out today for Korea, trying that now. The way they are increasing the build numbers, hopefully they are actually fixing something. Interestingly this had a modem file too though the SM-T820 is wifi only.
http://updato.com/firmware-archive-s...3AFA163EE8F90B
No dice still with AQF5 KOO firmware today, I officially give up. Likely a hw issue , only reason they have not addressed it across 6 firmware updates. Too bad since the tablet is very decent otherwise. Unlikely this will ever get fixed at this point since this is not a Note 7 type headline grabber. Time to find an used S2 to replace the one I sold or wait on something else.My S3 is going back tomorrow.
SOLUTION for SAMSUNG S3 TAB
go to SETTINGS - CONNECTIONS - in the right top corner click on ADVANCED. click on to "KEEP WIFI ON DURING SLEEP" and select NEVER.
I was pulling my hair out as my tablet was running out of battery unless I manually switched off wifi. Hope this helps.
jonathonalexander said:
But in actual use, I could be annotating a PDF file with the pen and it seems to drop really fast while the screen is on!
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kemoyin said:
For me too when i use my tablet for writing, but i guess it's the digitizer
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Oled display`s use a huge amount of power when showing white/light screens, oled is best for video(supposedly use less power than lcd)
Buy an lcd display tablet if you do a lot of writing/drawing.
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John.
+Turn on airplane mode
I noticed that Cell standby take from battery even if you don't have sim card
++ Go to developer options and turn on do not keep activities
+++ Advanced WLAN Settings >> Keep WLAN on during sleep >> never