Develop Bugs

Battery Life

I have a widget that shows me how much I have left and when I unplug it after a full charge, I have 6 hours left.
Ridiculous.
This is on auto brightness, wifi, twitter/facebook/mail updating every 15 minutes.
whenever I take my phone out the house I have to bring a charger...
bloody ridiculous.

couple of points.
1) When you leave the house, don't leave your wi-fi on! I find wi-fi to be the biggest battery drain out of everything ( expect gps)
2) I use a brightness widget, therefore when your in doors you can have it on low, then when your out doors have it on high, i assume this will use less battery then auto brightness
3) why do you need facebook updating every 15 minutes?? Do you honestly look at your phone that much when your out? change the settings so it updates every 15 when your on wi-fi at home, and every hour for when your not.

Wifi isn't an issue. I leave it on 24/7 as well as bluetooth and still can get 36 hours out od a charge. Its hooked up to wifi 20hrs a day as well.

Phil750123 said:
2) I use a brightness widget, therefore when your in doors you can have it on low, then when your out doors have it on high, i assume this will use less battery then auto brightness
3) why do you need facebook updating every 15 minutes?? Do you honestly look at your phone that much when your out? change the settings so it updates every 15 when your on wi-fi at home, and every hour for when your not.
Click to expand...
Click to collapse
thanks!
1) whats the name of this widget? sounds good
2) is there a setting for that? cant find it

I have a widget that shows me how much I have left and when I unplug it after a full charge, I have 6 hours left.
Ridiculous.
This is on auto brightness, wifi, twitter/facebook/mail updating every 15 minutes.
whenever I take my phone out the house I have to bring a charger...
bloody ridiculous.
Click to expand...
Click to collapse
1. Battery and other constantly updating widgets are one of the causes for battery drain. Get rid of it.
2. Battery widgets try to get an estimate of your typical use. They are mostly wrong in my opinion
3. I can get 6 hours of battery, yes, but only if glue the phone to my hand and use it constantly for that time
4. there are tons of battery threads around, use those suggestions (mid brightness, no live wallpaper, turn airplane on when you know coverage will be unavailable for long, etc)
5. Battery gets better in 10 days.
6. Most people can get at the very least one day of heavy usage. If you really need to hammer the battery get a spare one, they are cheap. Oh, and realize you are lucky because you CAN have a spare battery !
7. If you are using an automatic task killer, get rid of it.

callummc said:
thanks!
1) whats the name of this widget? sounds good
2) is there a setting for that? cant find it
Click to expand...
Click to collapse
1) go to the market and search brightness level, or brightness widget, there are a number of these. The best i find is brightness level by curvefish, it lets you pick a percentage and keep at that .
2) Cant remeber actually where the settings are but there is a way. But i prefer to use another widget, autosync on/off, this allows you to update every 15 when on wi-fi, but when you want to save battery, turn auto sync off and it doesnt sync ,

I suggest you use switchpro widget. its like the power control widget but with more options to turn on/off things.

I typically charged my Nokia N97 every other day or so, even though I used it frequently, and needless to say the HTC Desire doesn't have the same stamina. I was quite frustrated by it, and I started thinking of ways to save power. I came up with 19 tips, and I have actually noticed quite a difference by following them
19 Tips to Keep the HTC Desire Running a Little Longer

Nice post thanks.ill give this a go. But I have a question to do with the positioning using data or gps. I believe your stating that you should turn data off for this purpose, and let the gps do it? however my phone was set to opposite. when I changed as you were suggesting and I clicked allow gps, I had a message come up saying to turn off to conserve battery? But your saying to turn on? And have data off? Also how do you get into htc facebook settings,i cant even find it!

dingdong3000 said:
I suggest you use switchpro widget. its like the power control widget but with more options to turn on/off things.
Click to expand...
Click to collapse
yep i also use this widget
also use a free juice defender or paid ultimate juice that keeps turning on and off your 3g every now and then depending on how you schedule it, my phone with snowstorm weather widget updating every 80 minutes + 30s of 3g every 5 minutes to update mail etc and average usage lasts about 36 hours which is good enough for me

I leave my WI-FI on at home and suffer hardly any drain.
At work like today leave my Mobile network on down to 47% with just twitter usage!
Pathetic is the mobile signals drain.

MapleDouglas said:
I typically charged my Nokia N97 every other day or so, even though I used it frequently, and needless to say the HTC Desire doesn't have the same stamina. I was quite frustrated by it, and I started thinking of ways to save power. I came up with 19 tips, and I have actually noticed quite a difference by following them
19 Tips to Keep the HTC Desire Running a Little Longer
Click to expand...
Click to collapse
Ok, ive had another read of this and am now just even more confused! Are you saying to have gps turned off via settings and location aswell as data, or just having gps on? Are you saying that having gps selected via settings for the purpose of locating services uses les batty than via using data? Either way, it appeatss that the power control widget controls the gps the same as via settings. Right now ive deselected gps and the data location.

Dunbad said:
Ok, ive had another read of this and am now just even more confused! Are you saying to have gps turned off via settings and location aswell as data, or just having gps on? Are you saying that having gps selected via settings for the purpose of locating services uses les batty than via using data? Either way, it appeatss that the power control widget controls the gps the same as via settings. Right now ive deselected gps and the data location.
Click to expand...
Click to collapse
I believe this is what I'm saying:
"To let your device learn your location via wireless network triangulation requires less battery than by using the GPS for this purpose. However, using both methods simultaneously is probably not a good idea from a battery point of view. The GPS can handle this task by itself, although it will get a fix on your location a little bit slower. Also, wireless network positioning will be used to collect anonymous Google location data, which will drain the battery further. You can change this option from Settings > Location > Use wireless networks. "
In other words, to only use wireless network positioning will supposedly use less battery than by only using the GPS, but using both methods will naturally use the most juice

For me...
- Turn GPS On when I needed.
- Turn WiFi On when I needed
- Turn Bluetooth On when I needed
- Use 2G Network for standard internet, we use 3G if we want more speed such us watch video

jauhari said:
For me...
- Turn GPS On when I needed.
- Turn WiFi On when I needed
- Turn Bluetooth On when I needed
- Use 2G Network for standard internet, we use 3G if we want more speed such us watch video
Click to expand...
Click to collapse
I can get get good days heavy usage (except games) from mine, I haven't tried the 2G thing yet.
Apparently it is the connectivity thing that kills the battery, but turning off 3G, doesn't that take all the fun out of it???
If you just use it as a phone then I reckon you can get a couple of days out of it, or so I've read...

[Q] Increase battery life (Leedroid)

Hi there,
I am on the newest Leedroid Rom and his 2.0.4 Kernel
flashed the recommended Radio, but yet my battery runs out 60% in 8 hours of stand by. Had Wifi on and launcherpro, switchpro etc... nothing really special.
Any Tips for increasing my batterys life?
Thank you!

I gather the 2.0.4. kernel has issues and a new kernel will be made available as soon as Lee gets to it. In the mean time you could use 2.0.3..
Sent from my Desire HD using XDA App

sparking93 said:
Hi there,
I am on the newest Leedroid Rom and his 2.0.4 Kernel
flashed the recommended Radio, but yet my battery runs out 60% in 8 hours of stand by. Had Wifi on and launcherpro, switchpro etc... nothing really special.
Any Tips for increasing my batterys life?
Thank you!
Click to expand...
Click to collapse
if your using wifi, a good idea would be to change your wifi sleep policy, you can set it so when your device is on stanby, the wifi will switch off and the device connects to your mobile network, when you unlock your screen, the device connects to your wifi again

thanks for your replies =)
i think i'll wait for tonight kernel update, but anyways
how do some guys make their battery last for 3 days? that would be just like dreaming =D

sparking93 said:
thanks for your replies =)
i think i'll wait for tonight kernel update, but anyways
how do some guys make their battery last for 3 days? that would be just like dreaming =D
Click to expand...
Click to collapse
Setting it to 2G is a good start as well, tbh if you dont use data heavily whilst outside you are more likely to download data on wifi anyway.
Twitter, email and facebook updates if you use them are fairly minimal on data/battery and use even less if you turn down the frequency checking.
The only real data hog when walking around is maps data and if you preload the location maps for your country you dont need that either.
Also install current widget, put the widget on the home screen and charge your device to 100% and leave it plugged in, then wait and keep an eye on the current widget. It will slowly drop down to 0 amp as the battery fully charges. Once that happens reboot into clockwork and delete the battery stats.

I see under my task killer (yeh i dont use it anymore) that 2 diff map programs always load. Do i need these? are they resource/battery hogs?

Huge battery drain overnight (all off) with JB 4.3

Almost 15% of battery drain overnight in 9 hours, with 3G, WIFI and SYNC off, only 2G active.
Yesterday I had 20% of battery drain.
Can please someone help by having a look at the better battery Stats screenshots?
thanks

thegios said:
Almost 15% of battery drain overnight in 9 hours, with 3G, WIFI and SYNC off, only 2G active.
Yesterday I had 20% of battery drain.
Can please someone help by having a look at the better battery Stats screenshots?
thanks
Click to expand...
Click to collapse
I don't know if you're Maguro or Toro, but you need to have a data connection or this phone will chug battery. This phone is notorious for chugging through battery when looking for a data connection.

1st time I ever read this...
I have Maguro
left it with wifi and 3g on tonite and list 22%

no one else?

Might be helpful if you name your ROM, kernel and carrier. I have a Maguro with JellyBeer and the newest Golden Kernel of today (with some Trickster mod changes) and only getting like max 5% drain a night.
Edit;
I see it in your sig, so stock 4.3 ROM? I am on 4.2.2 so can't really compare it. Are you in a bad connection zone there? Any unnecesary apps running?

armini0 said:
Might be helpful if you name your ROM, kernel and carrier. I have a Maguro with JellyBeer and the newest Golden Kernel of today (with some Trickster mod changes) and only getting like max 5% drain a night.
Edit;
I see it in your sig, so stock 4.3 ROM? I am on 4.2.2 so can't really compare it. Are you in a bad connection zone there? Any unnecesary apps running?
Click to expand...
Click to collapse
yes, stock 4.3, very good 2G signal, no apps running in background (well I have facebook, but not messenger, and all google apps, of which i use only gmail, gmap and gcalendar, g+ is not connected, still at night sync is off).
if you have a look at the three screenshot on my first post, you will see the servioces causing wakelocks

If you look, the 1 and 2 screenshot didn't influence a lot on battery.. It looks high, but if you pay attention, it's draining 0.9%..1% so, not the beest battery life, but "normal". If you pay attention now on "deepsleep" screenshot, you will see that it drained most of the battery during the night.. So, my conclusion? Maybe some problematic gapps , trying to connect to some server to sync even with sync off, try another gapps. Second option : flash another kernel, it could be caused by kernel keeping the phone awake even when it's trying to deepsleep
Edit : almost forgot.. You could try to connect to wifi, and leave the phone for some hours with sync enabled.. It would sync what the phone tries to sync and fails during the night.. Sounds crazy, but solved my problem once!
Sent from my Galaxy Nexus using xda premium

with wifi on it drained 22% in 7 hours

besides... I not sure how u r reading the screenshot but the one for "other" simply says that of the total monitored time of 9h 14m 54s the phone was in deep sleep for the 96.2% of the time

[Q] Rapid Battery Life depletion during sleep

Hey XDA friends. I got the Verizon HTC One a few weeks ago and battery life started out fantastic. When I put away to go to sleep it only lost 7% all night with GPS on and wifi on and all that and I was astonished. However as time went on I found those results kept getting worse and worse until I was draining 30% in a night. I went and uninstalled battery guru and now I only drain 12% a night. Some nights however I still lose 20% in a night with sleep mode on. How do I check what keeps waking my phone up and draining my battery. I'm afraid this will affect my phone's battery in the long run. I will start disabling GPS at night but I wish I still had that 7% in a night. How do I check what is messing with my phone???

nscian12 said:
Hey XDA friends. I got the Verizon HTC One a few weeks ago and battery life started out fantastic. When I put away to go to sleep it only lost 7% all night with GPS on and wifi on and all that and I was astonished. However as time went on I found those results kept getting worse and worse until I was draining 30% in a night. I went and uninstalled battery guru and now I only drain 12% a night. Some nights however I still lose 20% in a night with sleep mode on. How do I check what keeps waking my phone up and draining my battery. I'm afraid this will affect my phone's battery in the long run. I will start disabling GPS at night but I wish I still had that 7% in a night. How do I check what is messing with my phone???
Click to expand...
Click to collapse
go to settings/power/usage. this will tell you which app is using the most of you battery. also you should never have gps on while youre sleeping. you might also want to turn off auto-sync and then re-enable it after you wake up. you can create a widget to do just that. if you need help with that, just let me know.

Turn data Wi-Fi and gps off lol.... You are asleep
Sent from my HTC6435LVW using xda app-developers app

nscian12 said:
Hey XDA friends. I got the Verizon HTC One a few weeks ago and battery life started out fantastic. When I put away to go to sleep it only lost 7% all night with GPS on and wifi on and all that and I was astonished. However as time went on I found those results kept getting worse and worse until I was draining 30% in a night. I went and uninstalled battery guru and now I only drain 12% a night. Some nights however I still lose 20% in a night with sleep mode on. How do I check what keeps waking my phone up and draining my battery. I'm afraid this will affect my phone's battery in the long run. I will start disabling GPS at night but I wish I still had that 7% in a night. How do I check what is messing with my phone???
Click to expand...
Click to collapse
Do you use blinkfeed, that will kill your battery pretty fast. Even if you don't think you are using it, go check and see if it's syncing anything in the settings. I thought mine was turned off, but then I logged into facebook (turned sync off in facebook), later I found that blinkfeed was syncing it anyway w/out my knowledge.

dspcap said:
Do you use blinkfeed, that will kill your battery pretty fast. Even if you don't think you are using it, go check and see if it's syncing anything in the settings. I thought mine was turned off, but then I logged into facebook (turned sync off in facebook), later I found that blinkfeed was syncing it anyway w/out my knowledge.
Click to expand...
Click to collapse
you cant turn blinkfeed off...

.kronos. said:
you cant turn blinkfeed off...
Click to expand...
Click to collapse
You can go into settings and make sure everything is unchecked. Mine had several checked by default and it was draining battery.
Sent from my HTC6500LVW using Tapatalk 4

Update: Battery only drained 10% last night with GPS off, Blinkfeed never updates on its own and all social networks are checked off (I don't like my social networks on Blinkfeed) other than that though everything seems to be in check. If anyone else has anyway to improve that 10% let me know (by the way the 10% was drained during 9 hours of constant sleep I went from 77 to 67)

nscian12 said:
Update: Battery only drained 10% last night with GPS off, Blinkfeed never updates on its own and all social networks are checked off (I don't like my social networks on Blinkfeed) other than that though everything seems to be in check. If anyone else has anyway to improve that 10% let me know (by the way the 10% was drained during 9 hours of constant sleep I went from 77 to 67)
Click to expand...
Click to collapse
airplane mode...
Really, 1% per hour on standby with cellular radios on is pretty acceptable. Depending on signal strength, the radio could be pulling that just to maintain a connection to the tower.

Thanks everyone!
With GPS off, Sleep mode on, and NO BATTERY HELPER APPS (Battery guru was diminishing my battery life) I got a record breaking (for me) 4% loss in battery life during my 8 hour night's sleep, not bad if I do say so myself, after that my battery has been a lot better. I wish Verizon would give us HTC's battery saving software back but let's not ask too much of Verizon or they might give us timely updates.

nscian12 said:
With GPS off, Sleep mode on, and NO BATTERY HELPER APPS (Battery guru was diminishing my battery life) I got a record breaking (for me) 4% loss in battery life during my 8 hour night's sleep, not bad if I do say so myself, after that my battery has been a lot better. I wish Verizon would give us HTC's battery saving software back but let's not ask too much of Verizon or they might give us timely updates.
Click to expand...
Click to collapse
Glad to hear this!!
those battery saving apps are so pointless IMHO, it's just another app and if coded incorrectly will do exactly what it did to you, destroy your battery that is working fine. very happy you can now enjoy your phone the way was designed to be!

andybones said:
Glad to hear this!!
those battery saving apps are so pointless IMHO, it's just another app and if coded incorrectly will do exactly what it did to you, destroy your battery that is working fine. very happy you can now enjoy your phone the way was designed to be!
Click to expand...
Click to collapse
Thanks! unfortunately I don't root my phones but for now the One does what I need it to perfectly and seamlessly

nscian12 said:
Update: Battery only drained 10% last night with GPS off, Blinkfeed never updates on its own and all social networks are checked off (I don't like my social networks on Blinkfeed) other than that though everything seems to be in check. If anyone else has anyway to improve that 10% let me know (by the way the 10% was drained during 9 hours of constant sleep I went from 77 to 67)
Click to expand...
Click to collapse
Hey..I had the same problem so...first download wakelock detector from play store..after installing jus use your phone like as usual..after 4 to 5 hrs or right before you charge your phone, open the wakelock app and check what's waking up your phone during sleep..for everyone it seems the battery is drained by Google services ..the main culprit being the location services.. so switch off the location services in settings..and also in Google maps, go into setting and then into Google location settings and make sure location reporting and location history are disabled, make sure they are unchecked.. that's it..restart the phone..fully charge it and test it out ..and DON'T use any battery saving apps ..and also uninstall wakelocker app after your battery life is back to normal..I'm an average user and I unplug around 9 in da morning and when I come home around 6, I still have 65% left..I don use facebook .. heard even facebook app is major battery drainer....you jus have to tweak and play with settings till you find your desired battery life expectancy cos everyone uses their phone differently..and we all have different apps so the main thing is to find out what's eating the phone battery most...I'm just pleased with my decision in picking HTC ONE over galaxy S4

similar problem here....google services is killing my battery (relatively). location is part of it, but google hangouts is also going crazy (watchdog alerts me to excessive usage....over 50%, but hangouts was at 100%)
i was spoiled on my g-nex, where i left wifi, bluetooth, and GPS on 24/7 and could easily go 24 hours. now i'm lucky to get 12 (with about 1 hour of screen on time).
I'm hoping things will sort out, device is only about a week old, but google optimized location usage (iirc) such that it isn't supposed to constantly ping and kill battery. we shall see, i guess.

I'm not sure what the problem could be but I'm just gonna say that yesterday I got around 18 hours of battery life with over 5 hours screen on time which I consider awesome battery life.
I'm stock, so it's definitely possible to get good battery life.

10 percent overnight? Thats not that great but not horrible. My dna is running carbon (android 4.3) I use tasker to turn off autosync and data/wifi and put it on silent at whatever set time I make it. My phone drains about 5 percent max overnight, usually a lot less.

anilpalepu said:
Hey..I had the same problem so...first download wakelock detector from play store..after installing jus use your phone like as usual..after 4 to 5 hrs or right before you charge your phone, open the wakelock app and check what's waking up your phone during sleep..for everyone it seems the battery is drained by Google services ..the main culprit being the location services.. so switch off the location services in settings..and also in Google maps, go into setting and then into Google location settings and make sure location reporting and location history are disabled, make sure they are unchecked.. that's it..restart the phone..fully charge it and test it out ..and DON'T use any battery saving apps ..and also uninstall wakelocker app after your battery life is back to normal..I'm an average user and I unplug around 9 in da morning and when I come home around 6, I still have 65% left..I don use facebook .. heard even facebook app is major battery drainer....you jus have to tweak and play with settings till you find your desired battery life expectancy cos everyone uses their phone differently..and we all have different apps so the main thing is to find out what's eating the phone battery most...I'm just pleased with my decision in picking HTC ONE over galaxy S4
Click to expand...
Click to collapse
you can turn off updates in facebook and its not bad, but yeah if you have autoupdate on, it can kill the battery.
as far as the OP, I don't get why you don't charge you phone while you are sleeping. Seems like the perfect time.

Turning GPS off shouldn't affect your battery life. If you're not using your phone, the phone isn't going to use the GPS for anything. So it shouldn't be using your battery. The culprit is usually an app that is wakelocking your phone. So you need to find which app it is that constantly wakes your phone from deep sleep. Turning off autosync would help a bit if you are really paranoid. The big thing that hurts our battery when the screen is off, is the LTE radio, but most people are connected to WiFi when they sleep so it's not a big deal.
Just an FYI, turning off GPS has been ineffective since 2.2 Froyo. When Gingerbread 2.3 was released like 2+ years ago, it allowed for the GPS to only be used when an app called for it to be used. Otherwise GPS will not do anything unless you pull up an app that calls it to do something.

Wifi Battery Drain

Hi guys
I have a LTE Note II and have had this battery drain on standby where wifi will absolutely destroy my battery. This has been going on for months and months and I'm just not sure if Samsung are ever going to resolve this and it is quite the pain in the arse.
I've done many tweaks to my phone, and all location services are off. Also, I've set it as a static IP, but nothing seems to help. I think this is related to the wlan_rx_wake wakelock? I get the impression my phone is responding to the wifi and getting woken up constantly.
Does anyone else experience this and do you have any suggestions?
P.S. please don't mention my apps causing it. It definitely is not. I know my way around Android and also, my Nexus 4 with the same setup (but location + google now turned ON) absolutely annihilates my Note II battery life on standby. This is clearly a Samsung problem that they have ignored for the best part of a whole year, and it seems to be related to wifi.
Any help would be greatly appreciated.
Thanks

Do u have some figures about this battery drain to be able to compare with my phone?
It could be a bad modem/connection. What is your configuration?

Primokorn said:
Do u have some figures about this battery drain to be able to compare with my phone?
It could be a bad modem/connection. What is your configuration?
Click to expand...
Click to collapse
No exact figures but I have been observing it for months now and it hasn't been the case with any other phone I use. With wifi on, it'll drain around 20% overnight. With Wifi off, it'll drain 5 or so %. With Wifi on on every other phone I own/owned, it will barely drain at all overnight.

Type *#0011#
Check wifi setting
Sent from my GT-N7100 using xda app-developers app

This is what I got when I entered that it

After *#0011# go to menu and select wifi in order to see if power safe mode is on.

Yeah it is on
Is that bad?
Sent from my Nexus 4 using Tapatalk 4

That's not bad, it improves battery usage. I don't recognize your problem. Does the phone go into deep sleep with wifi on? Which rom do you use?

Hielko said:
That's not bad, it improves battery usage. I don't recognize your problem. Does the phone go into deep sleep with wifi on? Which rom do you use?
Click to expand...
Click to collapse
Stock ROM. And yeah, but it is constantly being woken up.

Sorry for the bump, but this hasn't changed.
I'm not sure if this is to do with just the N7105, but it is something that just won't go away. I'm now finding I lose between 20 and 30% overnight (around 7 hours) with wifi on, or about 10% with data on. With these both turned off but the phone radio still being on, it only drops about 2% in the same time. This was tested with bluetooth/gps and sync turned off.
I don't really have the time to write up everything that I have tried, but suffice to say I have tweaked the phone a lot over the past few months trying to sort this out, but nothing works.
Here is a quick summary of the stuff I have done.
Firstly, I have to run a stock rom and kernel because there is an app I need that will not work on custom roms/kernels. It also doesn't work on root but I have found a procedure to toggle unroot/root when need be and it works fine. Therefore I'm stuck on 4.1.2 as I want to be rooted but I cannot use any custom rom or kernels.
I have tried factory wiping the phone/installing later versions of 4.1.2, etc etc and the same problems still exists with a freshly wiped phone and no apps installed. This problem also doesn't happen with my Nexus 4 or any other phone I have owned with the same setup, so I am very certain it is not due to a misbehaving app.
I have frozen a lot of bloat with titanium backup, I have hibernated a hell of a lot of stuff with greenify (including system app where there are no perceivable negative consequences)
I have added a few tweaks to the build.prop such as to disable fast dormancy and a few other supposed power saving ones which are meant to help with the msm_hsic wakelock.
There are many other things such as setting a static IP, and also tweaking with my router based on some advise I found on these forums. Nothing much has helped.
Location services and google now are off, and I'm not using the Samsung bloatware apps.
I use betterbatterystats and the partial wakelocks are fine. Very low infact.
However, IMO it is two "kernal wakelocks" which are causing me the problem.
wlan_rx_wake - in regards to the wifi
mdm_hsic_pm0 - in regards to the data
These are by no means outrageously high. My estimation is perhaps 10 mins wake up time and around 2000 "expire time" (whatever that means) every 3 hours or so. However, these two are always the highest kernel wakelock depending on if i'm using wifi (wlan_rx_wake) or data (mdm_hsic_pm0). My phone is also not being kept awake too long too in general.. at a guess around 3 hours awake time for every 2 hours screen on time for every 15-20 hours.
I can't remember if these kernel wakelocks were super duper high in the past, and the fixes I tried actually lowered them, but I still notice this massive Idle drain when on data or wifi (just over 1% per hour - or 2-3% per hour respectively).
In regards to the Wifi.. I suspect that packets are being sent from my router which are constantly waking up my phone. Unfortunately, I haven't been able to solve this problem with any of the router-side fixes I've tried.
This leads me to suspect that the wifi and data radio of the N7105 is power hungry, or I've had a faulty unit since day one. I keep hearing about this stellar battery life for this phone but, for me, the best I've ever got is around 20 hours. This may sound good but the problem is it is 20 hours with 6 hours screen on time, or 20 hours with 2 hours screen on time. This doesn't seem to make a difference where I should be getting two days when I only have 2 hours screen on time.
Any help would be greatly appreciated, and any experiances of others with the N7105 may help find out if it indeed is more power hungry. I'd also like to add that my network does not support 4G yet so this is all on 3G and NOT LTE.
Thank you, and sorry for such a long post.

fade2black101 said:
Hi guys
I have a LTE Note II and have had this battery drain on standby where wifi will absolutely destroy my battery. This has been going on for months and months and I'm just not sure if Samsung are ever going to resolve this and it is quite the pain in the arse.
I've done many tweaks to my phone, and all location services are off. Also, I've set it as a static IP, but nothing seems to help. I think this is related to the wlan_rx_wake wakelock? I get the impression my phone is responding to the wifi and getting woken up constantly.
Does anyone else experience this and do you have any suggestions?
P.S. please don't mention my apps causing it. It definitely is not. I know my way around Android and also, my Nexus 4 with the same setup (but location + google now turned ON) absolutely annihilates my Note II battery life on standby. This is clearly a Samsung problem that they have ignored for the best part of a whole year, and it seems to be related to wifi.
Any help would be greatly appreciated.
Thanks
Click to expand...
Click to collapse
I ain't expert...
but, I would suggest like this :
Go to wifi, press menu and then Advanced (advanced setting of the wifi).
uncheck/untick "Scanning always available"
"Keep wifi on during sleep" = set to Never.
uncheck / untick "auto network switch btwen wifi network and mobile networks"
all these helps me to minimize the usage of wifi during night times (when I sleep). Anyway, device also need to have a deepsleep
Hope can help you as well.
Sent from the corner of this rounded earth.