Database Info

Phone gets heated up while calling

Hi there
my phone gets heat up whenever calling for more then 5 minutes
what could be the reason
i think problem with radio
please suggest

most phones heat up the longer you call.
do you mean it gets really hot at 5minutes or do you mean it starts heating up after the 5min mark and gets really hot at something like 30 or 45 mins?
If your phone is getting uncomfortably hot at 5mins, then something might be wrong. I'm not sure the radio is the problem. it would help if you tell us which radio you are using.
Please provide more information.

I've had this sort of thing happen a lot. You can feel the phone putting out heat 5 minutes into a call. This also happens while I'm using Wi-Fi to watch youtube. I'm using the current AT&T radio, 1.14.25.35

My fuze gets hot all the time. charging, wifi tethering, talking... it isnt the phone either, its the battery and that is the scary part.

I don't know. I noticed HUGE battery loss after every call or use of the net. I can only stop it if I shut off the radio and turn it back on, either by disabling it in the connection manager or by restarting the phone. It could very well be that there's a connection between the two problems.

I've only been having that issue with the latest stock ROM.

Try flashing a different radio, and make sure your "rillphone.dll" matches the radio! (Not having the 2 match, can cause serious battery drain!!)
Also, it is quit normal that the phone heats, it runs on a lithium battery and they just warm up if they charge and if they discharge. This is normal and it's nothing more than a chemical reaction in the battery...
You can try turning off '3G', then your phone will use the regular cellphone network, witch is less power consuming (less power drain = less heat in the battery).
Same for wifi, it drains your battery...

Ah. I didn't noticed that there was a rilphone already in my ROM. I tried installing over it, but I guess it didn't stick and that's why the radio was draining power. I tried today and after work I was at 85% where I'm normally down to about 50%.
Well, I still need to test the "quick heat up" during a call, but hopefully I won't be experiencing that anymore.

silversonic1 said:
I don't know. I noticed HUGE battery loss after every call or use of the net. I can only stop it if I shut off the radio and turn it back on, either by disabling it in the connection manager or by restarting the phone. It could very well be that there's a connection between the two problems.
Click to expand...
Click to collapse
Check if you're using TICST (Touch In-Call Screen Tweak.) If the version you're using is lower than 1.2.0, there was a bug that would keep the application running either after a call or after a 'net connection was established; thereby draining the phone battery quickly even with the screen off.

mlacomb said:
Check if you're using TICST (Touch In-Call Screen Tweak.) If the version you're using is lower than 1.2.0, there was a bug that would keep the application running either after a call or after a 'net connection was established; thereby draining the phone battery quickly even with the screen off.
Click to expand...
Click to collapse
Now that I think about it, I did flash NRG's Genesis Rom the same day. If his previous ROM (one of NRG's. I know. I need to update my sig) had that in there, than that would make much more sense that what I was thinking...
Oh. I tried using Wi-Fi for extended periods of time. The phone didn't get as hot now that all of this has been worked out and it took longer to warm up too. I don't make many calls, so I will need time to see if it fixed my problems with it heating up.

[Q] Anyone notice crazy battery drain when signal is spotty?

I'm currently out at a client site, but it's super bad reception here in the conference room they stuck us in. First of all, no 4G in colorado springs, so i disabled LTE, and hit CDMA in the network settings.
3G is near impossible inside, so i usually get 1X, and voice connection is next to impossible also.
So i noticed that from unplugging in the morning at 7:30am. at around 2pm, my battery was already down to 10%!
And i didn't even use it.
I did see from my battery usage, that Android system was ABOVE screen in power usage.
Anyone have the same issue?

I've had the same problem with EVERY phone ever, even non-smartphones have this problem. The lower the signal, the more the phone will scan for a good signal. If it has no service, it scans very frequently. If you're on a smartphone, it's even worse because then when the phone does get service, all the data apps attempt to use what little bandwidth you do have all at once. If you're in an area with poor coverage, put your phone into download mode or disable the data connection. Nothing short of putting a network extender or new tower will solve this.

Yes, but this is typical of most phones really. Searching for a signal, acquiring it, losing it, etc, uses a lot of battery. You just have to disable data. If there is wifi available, then use that, if not, just have to wait until you go outside. I have no reception in my building at work, if I leave data on, my battery is dead in a couple hours, on wifi I can go all day

Yes and my phone got very hot in my pocket at the time as well.

got_rice64 said:
I'm currently out at a client site, but it's super bad reception here in the conference room they stuck us in. First of all, no 4G in colorado springs, so i disabled LTE, and hit CDMA in the network settings.
3G is near impossible inside, so i usually get 1X, and voice connection is next to impossible also.
So i noticed that from unplugging in the morning at 7:30am. at around 2pm, my battery was already down to 10%!
And i didn't even use it.
I did see from my battery usage, that Android system was ABOVE screen in power usage.
Anyone have the same issue?
Click to expand...
Click to collapse
I have this issue at work. I get anwhere from 10-15% battery drain an hour. I have determined that it is NOT because of the data signal though becuase I can turn that off and still get about the same excessive drain. It appears to be because of the voice signal. It varies anywhere from -85dm to -115dbm and is constantly changing. When I get outside of work environment, everthing is fine again and battery usage returns to normal. My Droid X did not have this issue.

-115db? How do you have signal at that rating? lol. Phone gets to about 1 bar when it reaches 101 for me.

I have the same issue in my office. I just barely get voice/text service. My solution is to turn off mobile data and plug my phone in to balance out the battery drain from the weak signal. I know it is bad to have my phone plugged in all of the time but it is better to be able to have sms and not have a dead phone when I am done at work.
Sent from my SCH-I510 using XDA Premium App

Samsuck said:
-115db? How do you have signal at that rating? lol. Phone gets to about 1 bar when it reaches 101 for me.
Click to expand...
Click to collapse
Yeah. Tell me about it. I am using Mobile Signal Widget to measure this. When It gets that bad, a little android face appears in the widget and it is crying.

YES! easily drains 10-15% an hour at a local pub that has 1 bar of signal.

It makes perfect sense... Your phone is fighting hard for that signal.
Sent from my Droid Charge running GummyFroyo 1.9.1

I drive 50+ miles to get to work and I always notice it drains a lot during my commute even when not used. I figured it was because of all the cell site swaps and searches bc I'm sure there's some spotty areas.
Sent from my SCH-I510 using XDA Premium App

Same experience. Dropped to 5% in 9 hours yesterday when I forgot to turn off data while at work. Today, I'm still at 75% after 9 hours with data off.
Juice defender solved this on my fascinate. It turned data on only once every 30 minutes. But, I can't get it to turn my data back on with this phone.
I really wish data signal aggressiveness was managed better by the operating system. It could be a real boon to the average battery life. Perhaps a smart developer could come up with some sort of "conservative" governor for 3g/4g connections. Rather than increasing power draw, it could just "sleep" until a stronger signal is detected... Imnuts? Is this even possible or just a pipedream?
Sent from my SCH-I510 using XDA App

I can't reach my dad on his cell phone while at the pentagon for obvious reasons. He has to turn his phone off during the day or it'll die in a few short hours, as a previous poster mentioned searching for a signal is a huge battery drain.

Strange. I did not have this problem with my OG Doid or Droid X in the same environment. Maybe the Moto phones simply have a better radio than the Charge.

Yeah for some reason, the samsung radio are junk. I have my Droid Charge (personal) and an Lg phone (business) and the lg blows the sammy out of the water. Now i am in 3g fringe (forget about 4g), and the sammy loses data all together while my lg still has the signal. I hate when i am trying to search for something on the charge and it says connection failed or network unavailable retry. Even when i call verizon, they all have me do a reset and stuff, and nothing works. The best answer i get is that iam in a 3g fringe area. When i tell them that my lg works and still has signal, all i get is silence or hmmmmmm. Gota love it. Yes they exchanged the phone with a new one and it still does the same thing. Forget about battery life. I actually carry 3 batteries with me and on a good day i only use 2 but usually it is 3. Before anyone says use wifi, unfortunatly we do not have free wifi where i work. anyway that should not be the answer to this problem. We are paying for a service that i can barely use.
end rant.
91point6 said:
Strange. I did not have this problem with my OG Doid or Droid X in the same environment. Maybe the Moto phones simply have a better radio than the Charge.
Click to expand...
Click to collapse

galaxyuser88 said:
Yeah for some reason, the samsung radio are junk. I have my Droid Charge (personal) and an Lg phone (business) and the lg blows the sammy out of the water. Now i am in 3g fringe (forget about 4g), and the sammy loses data all together while my lg still has the signal. I hate when i am trying to search for something on the charge and it says connection failed or network unavailable retry. Even when i call verizon, they all have me do a reset and stuff, and nothing works. The best answer i get is that iam in a 3g fringe area. When i tell them that my lg works and still has signal, all i get is silence or hmmmmmm. Gota love it. Yes they exchanged the phone with a new one and it still does the same thing. Forget about battery life. I actually carry 3 batteries with me and on a good day i only use 2 but usually it is 3. Before anyone says use wifi, unfortunatly we do not have free wifi where i work. anyway that should not be the answer to this problem. We are paying for a service that i can barely use.
end rant.
Click to expand...
Click to collapse
I went through the whole VZW customer service thing both on the phone and in person. They weren't much help but they gave me a brand new phone and it does the same thing. Then there were a lot of suggstions on different forums suggesting apps killers, turning data off, turing on 3g only data, rooting, trying different ROMs, battery clalibration, etc. None of this helps. The kind of drain I am seeing goes way beyond any benefits I would see out of any of these things. For example, I am at work now. When I left the house, it takes about 15 minutes for me to get to work. The rest of the time I have been inside my work building. I have been on battery for 2 hours & 24 minutes and I am at 76% already. Thats >10% drain per hour. When I am outside the building it is more like 3-5%. VZW customer service never suggested this as a problem. They DID suggest that 4g uses more battery but that is not the problem. I have proved that time and again by simply turning data off.

Hmm..sounds like a bad phone..I am in a fringe area at work and it definitely kills by battery faster but..it's only like 8% and hour so I still get 10 hrs a day or so...in a bad area. In a good 4 G area..I will get 24 hrs or so out of the phone.

galaxyuser88 said:
Yeah for some reason, the samsung radio are junk. I have my Droid Charge (personal) and an Lg phone (business) and the lg blows the sammy out of the water. Now i am in 3g fringe (forget about 4g), and the sammy loses data all together while my lg still has the signal. I hate when i am trying to search for something on the charge and it says connection failed or network unavailable retry. Even when i call verizon, they all have me do a reset and stuff, and nothing works. The best answer i get is that iam in a 3g fringe area. When i tell them that my lg works and still has signal, all i get is silence or hmmmmmm. Gota love it. Yes they exchanged the phone with a new one and it still does the same thing. Forget about battery life. I actually carry 3 batteries with me and on a good day i only use 2 but usually it is 3. Before anyone says use wifi, unfortunatly we do not have free wifi where i work. anyway that should not be the answer to this problem. We are paying for a service that i can barely use.
end rant.
Click to expand...
Click to collapse
Wow, that is the complete opposite of my experience. I've never had good signal with any LG phone - from flip phones to smartphones. Samsungs in my experience are middle of the road - not great, but not bad either. Motorolas usually do well, but there are certainly exceptions. HTC seems to be fairly good, but again, there are exceptions. Oh, and I did have one Audiovox phone on VZW, and it was garbage.

Haha you can whine about it in my rage thread
Sent from my Droid Charge running GummyFroyo 1.9.1

Heads up: Juice defender has issues with Droid Charge

With Juice Defender, I was having issues when in fringe 4g areas where I would get no data at all on wake (neither 3g nor 4g). Enable and renable data would work some of the time, but about half of the time required a reboot. Juice defender seems good in concept, but I think it is conflicting with the way the phone switches between 3g and 4g. When am in a strong 4g area, it works flawlessly.
Since disabling it, I have had no issues. My phone now just downshifts into 3g when the 4g gets spotty.
FYI, I am on a EE4 radio with GummyCharged 1.5 ROM

I noticed this too, disabling rarely worked for me had to uninstall. I really liked JD for my droid 1 hopefully they can update it for better performance on the charge
Sent from my Charge

Has anyone tried their public market beta or private beta versions to see if they've fixed it?

You can do pretty much everything JuiceDefender does by using Tasker instead. Tasker has been working well on my Charge.

same goes for the Green Power program that turns wifi and data on and off automatically....I was having trouble with the data part. Not sure why but when the data was supposed to come back on it wouldnt and I couldnt do anything that required the data..also required a reboot to get data working again..luckily you can have it not turn the data off to save power which is how I am running it now.

chiahead52 said:
same goes for the Green Power program that turns wifi and data on and off automatically....I was having trouble with the data part. Not sure why but when the data was supposed to come back on it wouldnt and I couldnt do anything that required the data..also required a reboot to get data working again..luckily you can have it not turn the data off to save power which is how I am running it now.
Click to expand...
Click to collapse
I've been sending emails back & forth to the Green Power developer about this very issue. Waiting on a final reply. He usually responds nightly. . . . I also tried the private beta for JD, still not re-enabling data when screen is turned back on. I posted the problem in the prvate beta forum for the developers. No response yet.

my green power program just had an update...states fixed data on when screen comes back on so maybe its fixed..anyone test this yet? I wonder if Juice Def is fixing it as well?

Seems to be not working just like before...not 100% sure..anyone else?
Sent from my SCH-I510 using XDA App

Might be a tough one for them. I think this has more to do with LTE than with anything the program is doing. I don't think it likes being turned off and on that quickly and often, as apparently there is a lot of syncing that has to happen when you turn it on or off.

I have my phone forced into 3G at all times since I dont live in a 4G area yet

I found this out in the first few days I had it, I had a ton of synching and switching problems that went away when I got rid of it. I don't really see what the point of running it without the data option, isn't that really all it does to save power?
I've found its really easy to just turn data on or off as needed in the little pull-down button in the notification bar, I have no synching issues and data comes right up no matter how quickly I turn it on or off...

I first installed the app to help my wife who has a charge as well...she cant seem to remember to turn the wifi and data off, so I tried it as a solution. Green power runs fairly good and doesnt hog the system resources or battery to turn wifi on and off automatically for my wife. So, for her it is helping greatly. For me not so much since I am always checking and rechecking everything often(OCD).

chiahead52 said:
my green power program just had an update...states fixed data on when screen comes back on so maybe its fixed..anyone test this yet? I wonder if Juice Def is fixing it as well?
Click to expand...
Click to collapse
Two months later and it still doesn't work. There has to be something wrong with the way the device syncs with the Verizon network since every battery saving program has issues reconnecting with the mobile network after it has been turned off for a certain amount of time. I'm dumping my Droid Charge when the Bionic comes out if this issue isn't fixed. Without the battery saving apps, I only get 7 hours of life out of my phone.

Stockmoose16 said:
Two months later and it still doesn't work. There has to be something wrong with the way the device syncs with the Verizon network since every battery saving program has issues reconnecting with the mobile network after it has been turned off for a certain amount of time. I'm dumping my Droid Charge when the Bionic comes out if this issue isn't fixed. Without the battery saving apps, I only get 7 hours of life out of my phone.
Click to expand...
Click to collapse
Only seven hours? When's the last time you calibrated your battery?

hazard209 said:
Only seven hours? When's the last time you calibrated your battery?
Click to expand...
Click to collapse
I calibrated it very recently. I'm a fairly heavy user 75+ emails, screen on at least 1:15 min per battery cycle, regular use of the 4g network. The phone gets at least double the battery life with Juice Defender and similar programs... now if only those programs could properly control the network all day.

Has anyone tried this with the new EP1Q modem firmwares?

I have been rather shocked at how poor the battery life is in my Charge.
I came from a Liberty ROMed DroidX that easily made it through a day at work running all the exact same apps I am running on my Charge. I have three extra batteries for the Charge (& two external chargers) but it's a good thing as I have had days where I briefly got into the 3rd battery.
I am running Gummy 1.9.1, EP1Q modem, my screen is set to 20% & I have it locked on 3G (unless I want to DL something). I have done the bump charge & batt calibration a few times. When it is idling with the screen off, it hardly uses any battery but the minute I use it for anything online I can literally watch the battery drop......
It really cracks me up when I see people posting that their battery lasts for 28 hours (yea right)
~John

jmorton10 said:
It really cracks me up when I see people posting that their battery lasts for 28 hours (yea right)
~John
Click to expand...
Click to collapse
I've had mine last that at least that long with light usage. And this is with 4G and GPS always on, and screen brightness set on auto. Just because you haven't experienced it, doesn't make it impossible.

I get about 24hrs when I am in a strong signal area (i.e. at home on weekends). With the week signal I get at work, forget it. It drops to 12-16 hrs.
Try to root out any rogue apps. I found Yahoo's mail app was killing my battery 50% faster.
Sent from my SCH-I510 using XDA App

Juice Defender works with the Gingerbread leaks, but not with the Froyo builds. It isn't the radios. I've tried it with Froyo ROMs running GB radios and it still had all the same issues. Not sure what the change is, but if you want to run Juice Defender, you need to be on a GB build.

Losing battery life while phone is idle

Hello everybody, I notice lately my phone is losing about 10 percent battery life every 2 hours while it is idle. The funny thing is I have data off no text message and made one phone call. I don’t know what’s going on. I am running stock.

The Newest apps I downloaded were comicbook reader, Spotify and Netflix, but that shouldn’t matter right? Because my mobile data is off

that sounds about average to me. since its stock, i would just put Juice Defender on it and leave it set to "balanced", then see where youre at battery wise.
additionally, you could try Watchdog to see if theres any background apps that are consuming a ton of cpu(it can happen)

voxigenboy said:
that sounds about average to me. since its stock, i would just put Juice Defender on it and leave it set to "balanced", then see where youre at battery wise.
additionally, you could try Watchdog to see if theres any background apps that are consuming a ton of cpu(it can happen)
Click to expand...
Click to collapse
Thanks alot man..will get those apps and report back in a few days

Funny thing is this seems like its just started out of nowhere. I had my phone since launch and never had this problem.

mbrown3460 said:
Funny thing is this seems like its just started out of nowhere. I had my phone since launch and never had this problem.
Click to expand...
Click to collapse
do you ever charge your phone in your car?
i know when you charge it via a wall charger or your PC, there's overcharge protection so realistically you can leave it "plugged in" as long as you'd like.
apparently though, if it gets fully charged and you still leave it plugged in in your car it can eventually do some damage to the battery and eventually kill it.
i had that happen to my old Galaxy S 4G & when i went to get a new battery they confirmed that that was the culprit.

You need to go into settings/ power/ and uncheck fast reboot . It runs all the time and eats up battery.
Sent from my Verizon 4GLTE HTC Thunderbolt

voxigenboy said:
do you ever charge your phone in your car?
i know when you charge it via a wall charger or your PC, there's overcharge protection so realistically you can leave it "plugged in" as long as you'd like.
apparently though, if it gets fully charged and you still leave it plugged in in your car it can eventually do some damage to the battery and eventually kill it.
i had that happen to my old Galaxy S 4G & when i went to get a new battery they confirmed that that was the culprit.
Click to expand...
Click to collapse
no only charge my phone on the wall or PC. Wow I didnt know I can leave my phone plugged I thought my battery would be damaged if I left it plugged in.
jbh00jh said:
You need to go into settings/ power/ and uncheck fast reboot . It runs all the time and eats up battery.
Sent from my Verizon 4GLTE HTC Thunderbolt
Click to expand...
Click to collapse
fast reboot is not checked in my settings.

phone idle isnt as important as the time it says it's without a signal. if you arent getting a signal, it's looking for one and really really draining the battery

yareally said:
phone idle isnt as important as the time it says it's without a signal. if you arent getting a signal, it's looking for one and really really draining the battery
Click to expand...
Click to collapse
Yep TWS is the biggest culprit of battery drainage on these Android phones. If you're in a poor reception area, you're SOL because the phone will eat through the battery searching for a signal. I have an Epic and have similar battery drain issues due to this.

yareally said:
phone idle isnt as important as the time it says it's without a signal. if you arent getting a signal, it's looking for one and really really draining the battery
Click to expand...
Click to collapse
hmmm you might be on to something. Don't get good reception at home and my reception is ok at work, not perfect tho.

mbrown3460 said:
Hello everybody, I notice lately my phone is losing about 10 percent battery life every 2 hours while it is idle. The funny thing is I have data off no text message and made one phone call. I dont know whats going on. I am running stock.
Click to expand...
Click to collapse
First, you should seriously consider rooting, then flash a custom rom & kernel. The stock rom is no battery sipper, and custom roms & kernels are much more efficient. I was getting ridiculous overnight drain (>20%) on stock, but now I'm getting only 1% per hour (6-8%). Also, grab Autostarts from the market. It prevents unnecessary apps from launching in the background & wasting battery (& memory)
Sent from my ADR6400L using XDA App

mbrown3460 said:
hmmm you might be on to something. Don't get good reception at home and my reception is ok at work, not perfect tho.
Click to expand...
Click to collapse
It'll show in the about stats when you press on the phone usage stats how long it was without a signal if you want to look (in case you weren't aware). Also I would make sure your phone is set to use wifi when sleeping always and not mobile (under wifi settings → press menu → go to advanced).

yareally said:
It'll show in the about stats when you press on the phone usage stats how long it was without a signal if you want to look (in case you weren't aware). Also I would make sure your phone is set to use wifi when sleeping always and not mobile (under wifi settings → press menu → go to advanced).
Click to expand...
Click to collapse
My mobile data off when I'm at work. So pulled my phone off at 6 am, made one call, checked my email and now I'm down to 93 percent. This is just ridiculous seems like my battery getting worst by the day.

I'm at home now on WiFi...my mobile data is usually off all day at work. Watch dog only alerted me to dolphin browser and I always close that out when I'm finished. I don't know what's going on.

Why do I need to baby sit my phone to get good battery life?

voxigenboy said:
do you ever charge your phone in your car?
i know when you charge it via a wall charger or your PC, there's overcharge protection so realistically you can leave it "plugged in" as long as you'd like.
apparently though, if it gets fully charged and you still leave it plugged in in your car it can eventually do some damage to the battery and eventually kill it.
Click to expand...
Click to collapse
This is not correct. The battery charge is controlled by the phone itself. the battery also has some electronics in it to limit the charge. The car charger provides 5 volts just like any USB port. You can (and I have) leave phone plugged into a car charger with no issues.
It is true that you should avoid charging the phone when it is HOT. So leaving it in a HOT car or any place HOT is a bad idea.

Checked the settings and my phone is using 3% battery life while it is idle. So I shouldn't be losing so much power. Is my battery damaged?

Yep, backing this guy up. The battery has it built in where it'll cut off the charge after it's full- and android has it that after it reaches 100% it'll let it drain down to ~90% because keeping it at 100% for extended periods of time is bad for the battery health.
For those more interested in your phone's battery and how charging works, check out this post:
http://forum.xda-developers.com/showthread.php?t=871051
----
If you're losing battery life when you're idle you have a few main reasons.
- First check to make sure you have a low min. set for your CPU, you don't want to have your CPU rev'd all the way up all the time- it's just not good.
- Download "spare parts" and check under "battery history" and you'll be able to see if you have a lot of GPS usage, data usage, CPU usage, etc.
- I'm not sure if mobile data turns both 4G and 3G off. I know the 4G here totally demolishes the battery, even more if you don't have it in your area.
If you don't have 4G and would like to save your battery from a painful death, do this (easy to change back)
*#*#4636#*#* -- Go to "Phone Settings" >> change to "CDMA auto (PRL)"
This will turn off 4G and stop it from searching, while still allowing you to use 3G and not have to turn off all data.
Hope at least one of those points helped you out and hope you get some better life because that's pretty bad, shouldn't be normal.

mbrown3460 said:
Hello everybody, I notice lately my phone is losing about 10 percent battery life every 2 hours while it is idle. The funny thing is I have data off no text message and made one phone call. I don’t know what’s going on. I am running stock.
Click to expand...
Click to collapse
Losing 5%/hour is normal for my phone when it's sitting doing nothing. The battery is a joke. I have Juice Defender Ultimate and that brings it down to maybe 2-3%/hour.

Does Wifi Save Battery vs Cullular connection?

If your connected to wifi and using it, are you gonna get better battery life VS being connected to either 3g or 4g/hspa+?
and Why if so?

Shoot im sorry, this shouldnt be in this forum. I thought I was in the general questions forums. MY bad people. Please move mods.

smashpunks said:
Shoot im sorry, this shouldnt be in this forum. I thought I was in the general questions forums. MY bad people. Please move mods.
Click to expand...
Click to collapse
This is the General forum. To answer your question, Yes it would use less battery on WiFi. On a data connection the signal is not a constant and the phone is always looking for a stronger signal.

Thanks, thats what I thought. And ive noticed that connected to wifi my battery lasts a lot longer.

smashpunks said:
Thanks, thats what I thought. And ive noticed that connected to wifi my battery lasts a lot longer.
Click to expand...
Click to collapse
yes. And 4g eats your battery.

When I am only using the phone for data, I use WiFi when available. I turn on airplane mode then activate WiFi.

I don't know about that... when I'm on wifi my battery drains like a mofo. Weapon 3.0 ICS theme faux 1.3 kernel.

On every ROM and Kernel I've tried, Wi-Fi uses much, much less battery than 4G. I haven't tried any of the toggles / battery saving apps though so I'm not sure what effect those might have.

NeKr0MAtiK said:
I don't know about that... when I'm on wifi my battery drains like a mofo. Weapon 3.0 ICS theme faux 1.3 kernel.
Click to expand...
Click to collapse
Do you disable data when you use wifi?

buru898 said:
Do you disable data when you use wifi?
Click to expand...
Click to collapse
He shouldn't have to. If he's draining faster on WiFi then something is screwy with his setup.

On stock, cyanogenmod 7.1, and cyanogenmod 7.1 with various other kernels I've experienced increased battery drain with wi-fi on and connected with the phone sitting at home the entire day. Turn off wi-fi and let it just use the data connection to T-Mobile and I get drastically increased battery times. I'm assuming those of you who get better battery with wi-fi on are in extremely bad signal areas. Also, if you're on cyanogenmod have you turned off the auto wi-fi disconnect when sleeping feature? If you haven't then your battery life when sleeping should be the same as that of wi-fi turned off.

Wi-fi should always be priority if your in range.

Well my personal experience has been that wi-fi eats up battery like crazy. Same thing happens to the other smartphone users I know around here so I was surprised to see that people get better battery times with wi-fi on. Are you guys completely turning off your cellular radio? I don't like the quality and slight delay of wi-fi calling so my cellular radio stays on when I have wi-fi on.

I don't usually notice much difference between wifi and 3g battery drain here (no 4G for tmo here).
As someone already posted, my drain is worst when 3g signal is poor, like when I'm at work and the metal building interferes with everything.
Have you tried checking logs while connected to wifi to see if maybe some app or service goes crazy?

Nothing fishy going on when wi-fi is on. I get about 10-14 hours on battery with wi-fi on and next to no use of the phone vs somewhere around 20+ hours with wi-fi off and similar extremely light use. I keep meaning to do some more standardized testing where I literally don't touch the phone but life gets in the way and I have to make/answer a call or txt or whatever so I can't nail down any hard numbers. Typical experience on a slow day for me is that if I forget my wi-fi is on, my battery will be somewhere in the 3-5% range when I'm getting ready for bed while if I hadn't left it on, I can go to sleep and wake up and it'll still be hanging in there.

GTWalling said:
This is the General forum. To answer your question, Yes it would use less battery on WiFi. On a data connection the signal is not a constant and the phone is always looking for a stronger signal.
Click to expand...
Click to collapse
That's true, I've always believed that Wifi eats battery faster because someone(don't remember who) always told me that Wifi uses more battery because it processes data faster, but I always noticed that when I used 4g, it drains a lot faster.
I always blamed it on the ROM, but I can see that it's not the ROM's fault.