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[Q] Extreme battery loss when losing signal

I'm running ViperXL 3.2.8 and I'm sure the rom has nothing to do with my battery draining really fast. For instance I charged my phone last night to 100% but after doing a road trip today, it literally drained down to 14% before I shut it off. My problem is I live in a rural area and when I travel through the curvy roads, my phone loses the signal. Is there a way for me to turn off something for it not to try to re-connect to a signal when I know it will not find a signal. I think airplane mode will work but I am not sure, can anyone suggest something for me. At home I can always use my wifi to get a signal but will that drain my battery?

melemel said:
I'm running ViperXL 3.2.8 and I'm sure the rom has nothing to do with my battery draining really fast. For instance I charged my phone last night to 100% but after doing a road trip today, it literally drained down to 14% before I shut it off. My problem is I live in a rural area and when I travel through the curvy roads, my phone loses the signal. Is there a way for me to turn off something for it not to try to re-connect to a signal when I know it will not find a signal. I think airplane mode will work but I am not sure, can anyone suggest something for me. At home I can always use my wifi to get a signal but will that drain my battery?
Click to expand...
Click to collapse
You can try just turning mobile data off, that should conserve battery. You can even have a toggle within the quick settings so you can quickly toggle it on and off within the pull down menu

I'm in the same boat as you lol. 15 minutes out from any direction with no signal. Airplane mode works perfectly for me.
Sent from my One Xl using xda premium

Extreme battery loss
exad said:
You can try just turning mobile data off, that should conserve battery. You can even have a toggle within the quick settings so you can quickly toggle it on and off within the pull down menu
Click to expand...
Click to collapse
Thanks for the info. My next question is probably a dumb question but since I'm a noob I might as well try it. I know that Elemental X and Bulletproof can improve battery life, is there anything out there that can improve signal strength or does it not exist? Which of the 2 kernels would you recommend, I know Elemental X needs to have Hboot off to install.

Kernels will not improve signal. Only radio firmware can and there's no set best radio either. Its reliant on carrier, location and hardware.
You can flash different radios and check signal levels and data speeds until you find the best one.
I believe S-off is required to flash radios.
Sent from my One X using xda app-developers app

I believe you can flash radios whole s-on as long as your hboot is <1.14.
Sent from my Evita

timmaaa said:
I believe you can flash radios whole s-on as long as your hboot is <1.14.
Sent from my Evita
Click to expand...
Click to collapse
I know you can on 1.09 being I have many times before
Sent from my HTC One XL using xda premium

melemel said:
I'm running ViperXL 3.2.8 and I'm sure the rom has nothing to do with my battery draining really fast. For instance I charged my phone last night to 100% but after doing a road trip today, it literally drained down to 14% before I shut it off. My problem is I live in a rural area and when I travel through the curvy roads, my phone loses the signal. Is there a way for me to turn off something for it not to try to re-connect to a signal when I know it will not find a signal. I think airplane mode will work but I am not sure, can anyone suggest something for me. At home I can always use my wifi to get a signal but will that drain my battery?
Click to expand...
Click to collapse
I still keep the data on, my "fix" is to turn off autosync (toggle on the screen) to turn it back on at home on wifi. This way I can still use mobile data for Skype or kik messenger.
Sent from my HTC One X using xda app-developers app

slimslim said:
I still keep the data on, my "fix" is to turn off autosync (toggle on the screen) to turn it back on at home on wifi. This way I can still use mobile data for Skype or kik messenger.
Sent from my HTC One X using xda app-developers app
Click to expand...
Click to collapse
Turning off autosync won't fix his problem though, the problem is that in a low/no signal area the radio is working too hard to connect and therefore draining battery.
Sent from my Evita

timmaaa said:
Turning off autosync won't fix his problem though, the problem is that in a low/no signal area the radio is working too hard to connect and therefore draining battery.
Sent from my Evita
Click to expand...
Click to collapse
Well I went ahead and installed ElementalX and I see a big improvement in performance and battery life from it. It did improve the signal a bit and it does work better at my home. On the curvy roads I just turn off the data because I might as well conserve the battery than to have it trying to connect to a signal that is not there, thus draining my battery.

exad said:
Kernels will not improve signal. Only radio firmware can and there's no set best radio either. Its reliant on carrier, location and hardware.
You can flash different radios and check signal levels and data speeds until you find the best one.
I believe S-off is required to flash radios.
Sent from my One X using xda app-developers app
Click to expand...
Click to collapse
Have you worked with any radios that you would recommend to me? By the way, I installed ElementalX on my phone (with s-off) and the overall improvement and performance of the phone is great. I also noticed longer battery life.

melemel said:
Have you worked with any radios that you would recommend to me? By the way, I installed ElementalX on my phone (with s-off) and the overall improvement and performance of the phone is great. I also noticed longer battery life.
Click to expand...
Click to collapse
A radio that works well for one user won't necessarily work well for another user. It all depends on where you are among other factors. The best thing to do is flash a few radios, note their signal strength (not the bars, the actual strength displayed in settings/about phone/network) and performance, and settle with the best one.
Sent from my Evita

exad said:
Kernels will not improve signal. Only radio firmware can and there's no set best radio either. Its reliant on carrier, location and hardware.
You can flash different radios and check signal levels and data speeds until you find the best one.
I believe S-off is required to flash radios.
Sent from my One X using xda app-developers app
Click to expand...
Click to collapse
Have you worked with any radios that you would recommend? I installed ElementalX and it is a big improvement on performance, my phone is actually faster and I noticed longer battery life. love the sweep to wake and sleep. Regarding the signal, I just turn off data when I drive on curvy rural areas that way I conserve battery life.
I have H-boot 1.14 and s-off.
Thanks for all your help.

melemel said:
Have you worked with any radios that you would recommend? I installed ElementalX and it is a big improvement on performance, my phone is actually faster and I noticed longer battery life. love the sweep to wake and sleep. Regarding the signal, I just turn off data when I drive on curvy rural areas that way I conserve battery life.
I have H-boot 1.14 and s-off.
Thanks for all your help.
Click to expand...
Click to collapse
Please see my post about radios above.
Sent from my Evita

timmaaa said:
A radio that works well for one user won't necessarily work well for another user. It all depends on where you are among other factors. The best thing to do is flash a few radios, note their signal strength (not the bars, the actual strength displayed in settings/about phone/network) and performance, and settle with the best one.
Sent from my Evita
Click to expand...
Click to collapse
Since I just installed ElementalX, I think I will hold off on installing a new radio. Then I will decide if I still need a new radio, I have noticed a little more signal strength and extended battery life since I installed it. Thanks for all your help.

★ Saving battery life in areas with no coverage? ★

This has been a long time problem for me every since the OG Droid days. I go to school, 5 days a week, 8 hours a day, and at the end of the day its at 30% due to the sh*tty reception at my school. I've tried multiple things such as installing JuiceDefender (currently still using), DS Battery Saver, etc...to have data turned off as well as wifi when the phone is idle. If I keep my phone idle for lets say, 2 hours its already at 70-80% whereas if I do the same at my house with full 4g coverage and turning off data when not in use/wifi, its in the 90% range. Can anyone tell me as to what I can do to achieve that I am supposed to get with these apps other than turning on airplane mode?
Note: I have betterbatterystats to check for wakelocks and there seems to be none.

BrUhNiGGs said:
This has been a long time problem for me every since the OG Droid days. I go to school, 5 days a week, 8 hours a day, and at the end of the day its at 30% due to the sh*tty reception at my school. I've tried multiple things such as installing JuiceDefender (currently still using), DS Battery Saver, etc...to have data turned off as well as wifi when the phone is idle. If I keep my phone idle for lets say, 2 hours its already at 70-80% whereas if I do the same at my house with full 4g coverage and turning off data when not in use/wifi, its in the 90% range. Can anyone tell me as to what I can do to achieve that I am supposed to get with these apps other than turning on airplane mode?
Note: I have betterbatterystats to check for wakelocks and there seems to be none.
Click to expand...
Click to collapse
I have the same problem, luckily this only happens inside particular buildings for me, but airplane mode is the only thing that will work.
Juice defender manages your data connection, this is different, it shows under better battery stats as "no data connection" only thing you can do is try different radios, maybe mb1 would work better over mf1 or vice versa.
Also if you're running an AOSP rom, switching to touchwiz might help you significantly.
Sent from my SCH-I535 using Tapatalk 2

BadUsername said:
I have the same problem, luckily this only happens inside particular buildings for me, but airplane mode is the only thing that will work.
Juice defender manages your data connection, this is different, it shows under better battery stats as "no data connection" only thing you can do is try different radios, maybe mb1 would work better over mf1 or vice versa.
Also if you're running an AOSP rom, switching to touchwiz might help you significantly.
Sent from my SCH-I535 using Tapatalk 2
Click to expand...
Click to collapse
I am on touchwiz because of good stability and generally better battery life but it doesn't apply to when I'm in areas with poor reception. The thing I hate about airplane mode is either I forget, and I can't receive calls or anything unless I remember to turn it back off
Sent from my SCH-I535 using Tapatalk

BrUhNiGGs said:
I am on touchwiz because of good stability and generally better battery life but it doesn't apply to when I'm in areas with poor reception. The thing I hate about airplane mode is either I forget, and I can't receive calls or anything unless I remember to turn it back off
Sent from my SCH-I535 using Tapatalk
Click to expand...
Click to collapse
It is annoying, you'd make a lot of money developing an app that automatically toggled airplane mode in areas of poor signal and off in areas of good signal. I'd buy it.
Touchwiz and radio change is all you can really do.
Sent from my SCH-I535 using Tapatalk 2

BrUhNiGGs said:
This has been a long time problem for me every since the OG Droid days. I go to school, 5 days a week, 8 hours a day, and at the end of the day its at 30% due to the sh*tty reception at my school. I've tried multiple things such as installing JuiceDefender (currently still using), DS Battery Saver, etc...to have data turned off as well as wifi when the phone is idle. If I keep my phone idle for lets say, 2 hours its already at 70-80% whereas if I do the same at my house with full 4g coverage and turning off data when not in use/wifi, its in the 90% range. Can anyone tell me as to what I can do to achieve that I am supposed to get with these apps other than turning on airplane mode?
Note: I have betterbatterystats to check for wakelocks and there seems to be none.
Click to expand...
Click to collapse
Using GeoFencing in NFC Task Launcher, could provide a possible solution, at least when you're at school. Use it to automatically turn on Airplane Mode when you arrive and turn it off when you leave.

BrUhNiGGs said:
I am on touchwiz because of good stability and generally better battery life but it doesn't apply to when I'm in areas with poor reception. The thing I hate about airplane mode is either I forget, and I can't receive calls or anything unless I remember to turn it back off
Sent from my SCH-I535 using Tapatalk
Click to expand...
Click to collapse
Go grab Tasker. You will thank me later. You can set up a task to turn on airplane mode based on location . So when you arrive at school you go in airplane mode. You could then add another event to turn off airplane mode at specific intervals like lunch time and when school ends. Or even every 2 hours to receive email and text messages. I don't think you could turn airplane mode back off based on location (when you leave school) since you would need GPS but you can set it for the time that school ends (I.e 3:00)
Sent from my SCH-I535 using Tapatalk

Sandman-007 said:
Go grab Tasker. You will thank me later. You can set up a task to turn on airplane mode based on location . So when you arrive at school you go in airplane mode. You could then add another event to turn off airplane mode at specific intervals like lunch time and when school ends. Or even every 2 hours to receive email and text messages. I don't think you could turn airplane mode back off based on location (when you leave school) since you would need GPS but you can set it for the time that school ends (I.e 3:00)
Sent from my SCH-I535 using Tapatalk
Click to expand...
Click to collapse
Thanks I will try that app. Always passed that by in the play store because I never knew what it was
Sent from my SCH-I535 using Tapatalk

BrUhNiGGs said:
Thanks I will try that app. Always passed that by in the play store because I never knew what it was
Sent from my SCH-I535 using Tapatalk
Click to expand...
Click to collapse
Tasker I agree is brilliant. I also use it for school. I didn't set it based on location though. Instead, I have it set to signal strength between 0,1 and then i give it a 2min delay and then turn on airplane mode while keeping wifi on. Then wait 30min and then disable airplane mode so it can check for signal strength. If it is still bad, keep it in airplane mode; otherwise jump back to the step where you go to airplane mode. It works miracles for my battery.

BrUhNiGGs said:
Thanks I will try that app. Always passed that by in the play store because I never knew what it was
Sent from my SCH-I535 using Tapatalk
Click to expand...
Click to collapse
You are welcome. It does have a learning curve. There's plenty of guides to using the app. In fact you can go to their website via the app and they have a list of probably a hundred different preconfigured tasks to download and import. So what you looking for may already have been made and you can just download it from the wiki.
Sent from my SCH-I535 using Tapatalk

Sandman-007 said:
Go grab Tasker. You will thank me later. You can set up a task to turn on airplane mode based on location . So when you arrive at school you go in airplane mode. You could then add another event to turn off airplane mode at specific intervals like lunch time and when school ends. Or even every 2 hours to receive email and text messages. I don't think you could turn airplane mode back off based on location (when you leave school) since you would need GPS but you can set it for the time that school ends (I.e 3:00)
Sent from my SCH-I535 using Tapatalk
Click to expand...
Click to collapse
Why wouldn't GPS be available. He said he had a weak phone signal, which has nothing at all to do with the GPS. Also why spend $6.99 for Tasker when you can do the same thing with NFC Task Manger without the steep learning curve that comes with Tasker.

joekiv said:
Why wouldn't GPS be available. He said he had a weak phone signal, which has nothing at all to do with the GPS
Click to expand...
Click to collapse
I don't use GPS much so I may be wrong. But once he put his phone in airplane mode GPS would be disabled. Also you can do literally hundreds of other things with tasker. He may find other uses for the app
Sent from my SCH-I535 using Tapatalk

Sandman-007 said:
I don't use GPS much so I may be wrong. But once he put his phone in airplane mode GPS would be disabled. Also you can do literally hundreds of other things with tasker. He may find other uses for the app
Sent from my SCH-I535 using Tapatalk
Click to expand...
Click to collapse
I didn't even think about using tasker for this! Genius, I think I'll set that up for myself.
Sent from my SCH-I535 using Tapatalk 2

Sandman-007 said:
I don't use GPS much so I may be wrong. But once he put his phone in airplane mode GPS would be disabled. Also you can do literally hundreds of other things with tasker. He may find other uses for the app
Sent from my SCH-I535 using Tapatalk
Click to expand...
Click to collapse
You're not wrong some phones do turn off GPS in Airplane mode. However, when you enter location you set up NFC Task Launcher to 1. Turn on Airplane mode 2. Turn on GPS. When leaving: 1. Turn off Airplane Mode. Pretty straight forward.

joekiv said:
You're not wrong some phones do turn off GPS in Airplane mode. However, when you enter location you set up NFC Task Launcher to 1. Turn on Airplane mode 2. Turn on GPS. When leaving: 1. Turn off Airplane Mode. Pretty straight forward.
Click to expand...
Click to collapse
Well each man to their own I guess. I already have tasker so I'll keep that
Sent from my SCH-I535 using Tapatalk

[Q] Unofficial CM without Radio?

Dear All,
I passed my old infuse to me child to use on the WiFi without a sim or a service. I keep updating her phone whenever a new version of scott.hart.bti's rom comes out (Thanks Scott). The problem is the Cell Standby is consuming most of the battery even though there is no sim in the phone.
I am wondering if there is a way I can completely remove the Radio part from the latest Roms or is there a chance that a new rom can be posted with and without the cell radio?
Thanks in advance for any advice.
MAK

maknajjar said:
Dear All,
I passed my old infuse to my child to use on the WiFi without a sim or a service. I keep updating her phone whenever a new version of scott.hart.bti's rom comes out (Thanks Scott). The problem is the Cell Standby is consuming most of the battery even though there is no sim in the phone.
I am wondering if there is a way I can completely remove the Radio part from the latest Roms or is there a chance that a new rom can be posted with and without the cell radio?
Thanks in advance for any advice.
MAK
Click to expand...
Click to collapse
If no sim, so no radio! Put it in airplane mode, but will change nothing if there's no sim!
Let the phone die and charge it till 100%. Normally the rom takes 2-3 days to stabilise! U can also lower clock speed to 800mhz.
But I don't know how to remove radio function and make it become media player. The problem is with the battery and rom/gapps and not the radio since there's no sim!

From http://forum.xda-developers.com/showpost.php?p=53063834&postcount=3...
Try dialing *#*#4636#*#*
Go to Phone Information, select Turn off Radio.
Can always turn back on by Airplane Mode toggle (or go back in this way). Don't know if there is a difference between this and Airplane Mode (except the lack of the Airplane icon in the status bar) but I hope this helps.

Thanks
Both methods worked fine. Thanks a million gentlemen

maknajjar said:
Both methods worked fine. Thanks a million gentlemen
Click to expand...
Click to collapse
I have the same cell standby problem. It eats up 50% of my battery. I've put my phone in airplane mode but it still dies over the course of 8 hours.

[Q] Is it possible to turn of Volte?

Looking to hopefully fix this cell standby battery drain. Is it possible to turn off volte on Verizon S6?
thanks

Settings then advanced calling.
Turning it off will not help. This is a known issue.
What has worked for me is turning advanced calling off, wiped cache, turned advanced calling back on.
One time I forgot to turn volte back on and I still had the drain until I turned it on.
Let me know your results. I had to get a replacement because nothing stopped the drain on my first s6
Sent from my SM-G920V using Tapatalk

So I followed your advice for advanced calling and my phone is at 95% and cell standby shows 1%. Is this good?

Give it a day and post your battery stats with info on how long you were on wifi. Way too small of a sample size here to determine
Sent from my SM-G920V using Tapatalk

Will do. But where can I get the WiFi stats?
Sent from my SM-G920V using Tapatalk

That's just your estimate.
Ex: out of my total 24 hours I was on wifi for about 20.
I don't know if there's a way to know exactly how long you were connected to wifi unless you turn it off every time you leave where you are on wifi.
Sent from my SM-G920V using Tapatalk

So I my phones at 14% are 7hrs 16mins on battery. I was on wifi probably about 75% of the time. my cell standby is at 15%. Stats in the screen show.
Is this bad?

For reference... Almost 100% WiFi today, 50% left battery power.. Mostly phone calls today, and doing some reference look ups. I don't play games on my phone.

Having cell standby at 15% on mine. Is that to high? I was doing a lot of data transfer today over wifi. Coping files to my google drive.

rdefino said:
So I my phones at 14% are 7hrs 16mins on battery. I was on wifi probably about 75% of the time. my cell standby is at 15%. Stats in the screen show.
Is this bad?
Click to expand...
Click to collapse
Yes your standby is too high. Have you done the workaround? Also what was your sot
Here's what I've been getting
Sent from my SM-G920V using Tapatalk

When you say workaround, do you mean wipe cache then turn on advanced calling.? I've done that and also factory reset and then the advanced calling again.
Anything else to try.
thanks

rdefino said:
When you say workaround, do you mean wipe cache then turn on advanced calling.? I've done that and also factory reset and then the advanced calling again.
Anything else to try.
thanks
Click to expand...
Click to collapse
Time for a replacement device
Sent from my SM-G920V using Tapatalk

Bummer. So does the cell standby increase usually when on wifi most of the time?
Also, I;m rooted and I know I need to unroot before going to version, but should I unroot before calling thier tech support?

rdefino said:
Bummer. So does the cell standby increase usually when on wifi most of the time?
Also, I;m rooted and I know I need to unroot before going to version, but should I unroot before calling thier tech support?
Click to expand...
Click to collapse
Most people experience it while on wifi. Some people have reported they still get the drain while not on wifi.
I never call tech support. I always walk into a corporate store. On this occasion I said I have terrible battery drain. Told them quickly it was before and after the OTA, tried a couple workarounds I found on xda. No questions asked and they ordered my replacement. Took him longer to make a minor account change (changed first name from David to Dave) than the replacement process took.
Sent from my SM-G920V using Tapatalk

sounds good. I'll flash back to stock and head to verizon.
thanks

rdefino said:
sounds good. I'll flash back to stock and head to verizon.
thanks
Click to expand...
Click to collapse
Good luck my friend. If there's anything else I can help with let me know
Sent from my SM-G920V using Tapatalk

Are folks with the cell standby issue that return the phone for a new one, not seeing the issue. I guess it's a crap shoot if you get one that doesn't have the issue....right?
Just wondering if this will ever be resolved.
thanks again

Huge battery eating when cell connected (Not data) - MM fw.163

Hello.
I don't know why, but since I bird this phone I got huge problems with battery life. Since the phone was LP-powered, it was hard to get more than 2h when using normally. Now I'm on MM, and with both Stock and Custom (RomAur) roms I can't get more than 3h. But the thing is, if I go into Airplane mode, my phone gets really good in battery. But if I only turn the data off, it still drain the battery...
I've heard of something called "fast dormancy" by another thread. Is it the problem ?
What should I do ?
Thanks in advance. Daniel aka. _cab13_

what I do before is I set my network type to GSM if I am not using the phone for internet (like if I am on wifi). try to see if this helps.
I think your problem has something to do with mobile radio active bug.

No it is not. Radio active bug is related to Data. But data is not the problem. It's cell and calls connection. If I turn my data off, it still eats battery, but if I start Airplane mode, it's okay
Sent from my Sony E6653 using XDA Labs

I installed BBS and it shows me that PowerManagerService.Display and PowerManagerService.WakeLocks are the most eating wakelocks...
Any idea ?
Sent from my Sony E6653 using XDA Labs