This may be a noob question, but i'm wondering if using Wifi (while cell data turned on) uses more than cell data (with wifi off) alone.
Thanks,
seanvree said:
This may be a noob question, but i'm wondering if using Wifi (while cell data turned on) uses more than cell data (with wifi off) alone.
Thanks,
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Using wifi with cell data turned on will use less. I think having wifi actually turns the cell data OFF, but leaves the voice connection on. When using mobile data, I get a standby drain of about 2% an hour on LTE. On wifi, it's less than 1% an hour.
Yes, using wifi will use less battery. It only has to transmit data maybe 30 feet to the wifi router rather than maybe a mile or two to the cell tower.
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what is better to use... when it comes to battery consumption...
wifi or 3g?
and is there a big difference in speed?
sorry for the newb-like question...
Wi-fi is better for battery life, and its usually faster than 3G
Sent from my SAMSUNG-SGH-I897 using XDA App
I found, according to Juiceplotter, that my phone dies a tad bit quicker when I'm connected to wifi at home as opposed to 3g. Funky but true. Slopes of wifi usage decrease a lot quicker than the slopes for 3g usage.
EDGE
10char
I was losing 30% every night with my phone sitting with the screen off and wifi set to never sleep. Last night I disabled the wifi and lost 3% over 8 hours even though I was only getting 1 bar or signal and have autosync on for weather, facebook, email. I am going to try to leave wifi on tonight with it set to only stay on when plugged in and see how much it will drop.
bigdoug2005 said:
I was losing 30% every night with my phone sitting with the screen off and wifi set to never sleep. Last night I disabled the wifi and lost 3% over 8 hours even though I was only getting 1 bar or signal and have autosync on for weather, facebook, email. I am going to try to leave wifi on tonight with it set to only stay on when plugged in and see how much it will drop.
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I agree setting wifi to never sleep will kill your battery quicker than 3G overnight. I use Wifi when I am at work because it is faster, I am not 100% sold on the idea that it uses less battery than normal data. Especially if you do not normally use a lot of data.
I got my HTC Sensation a couple of days ago. With a full charge and with GPS, Wifi, Bluetooth and 3G disabled, the phone dies after 10 hours moderate use.
The coverage by my operator in the area where I live there is a constant signal fluctuation.
I have heard that this can cause battery drain. Is this true?
This is very true. When I go to areas with little or no signal, my battery dies twice as fast.
dial *#*#4636#*#* and set it to GSM auto (PRL). Should considerably improve your battery if signal is weak, but won't do anything for your reception.
This is something I've noticed drastically with HTC Android phones, my Desire was exactly the same.
On my Sensation I usually get reasonable battery life, a little better than my Desire. With moderate use when the signals decent (3 -4 bars average) easily 20- 30 hours with 4 - 5 hours screen on time. However if I spend the day in a location with very poor reception (0-2 bars average) I just about get a full waking day of 17 hours with 3 hours screen on time. Thankfully I usually have a decent signal.
After a few complete charge and discharge cycles you should see an improvement on that poor 10 hours you got though. I recommend you completely discharge the battery untill the phone shuts itself down and then charge the phone over night while its switched off for the first 4 charges to calibrate the battery well.
Cheers
I charged my phone to 100%, turned of mobile data.
I turned on wifi,GPS and connected the phone to my wifi-router (100% signal from the router).
The Sensation has been running with no charger connected since 22:00 CET yesterday and time here is 08:52 CET. The phone has only lost 29% of power since last night.
Compared to yesterday when I took it to town on a full charge with GPS, Wifi and GSM Mobil-data turned on. It lost almost 35% of power in three hours.
I know I properly can't compare Wifi and GSM data, but if it was the case one could conclude that what could be killing the battery life of the Sensation is bad GSM/3G data coverage?
Poor reception has always been main battery killer on sby. Change setting I mentioned, should improve.
Euroman28 said:
I charged my phone to 100%, turned of mobile data.
I turned on wifi,GPS and connected the phone to my wifi-router (100% signal from the router).
The Sensation has been running with no charger connected since 22:00 CET yesterday and time here is 08:52 CET. The phone has only lost 29% of power since last night.
Compared to yesterday when I took it to town on a full charge with GPS, Wifi and GSM Mobil-data turned on. It lost almost 35% of power in three hours.
I know I properly can't compare Wifi and GSM data, but if it was the case one could conclude that what could be killing the battery life of the Sensation is bad GSM/3G data coverage?
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Sent from my HTC Sensation Z710e using XDA App
Okay I will try..
What is the maximum life anyone has gotten out of a sensation?
Sent from my HTC Sensation Z710e using XDA App
tinky1 said:
dial *#*#4636#*#* and set it to GSM auto (PRL). Should considerably improve your battery if signal is weak, but won't do anything for your reception.
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Having problems with battery life also. What exactly does doing what u mentioned do?
Instead of constantly searching for 3g it sticks with gprs, until sufficient 3g signal is found.
seatown1two said:
Having problems with battery life also. What exactly does doing what u mentioned do?
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Sent from my HTC Sensation Z710e using XDA App
It has been alive for almost 14 hours now with GPS, Wifi and turned on and connected to my AP and Cellular data turned off, but with a regular GSM connection to the Operator network so I can send and recieve texts and recieve and dial out calls.
By the way when your Sensation jumps onto a 3G connection do you feel it getting warmer?
Also flash the latest radio.
Hi everyone,
I noticed that my One X has been losing about 12% of battery life while asleep for 8 hours (while I'm sleeping). Is that normal? How much battery life do you lose when you don't use the phone? I leave wi-fi on and that's about it. I checked to make sure that the phone isn't awake during this period.
My battery life has been good on some days (lasts about 20 hours) and bad on some days (lasts about 10 hours) with almost identical usage. Any tips on improving battery life?
I went camping and put my phone on airplane most 80% of the time except when I needed it. It lasted me nearly 3 days! Does LTE consume a lot of battery power? Does wi-fi do also?
RPTheLefty said:
Hi everyone,
I noticed that my One X has been losing about 12% of battery life while asleep for 8 hours (while I'm sleeping). Is that normal? How much battery life do you lose when you don't use the phone? I leave wi-fi on and that's about it. I checked to make sure that the phone isn't awake during this period.
My battery life has been good on some days (lasts about 20 hours) and bad on some days (lasts about 10 hours) with almost identical usage. Any tips on improving battery life?
I went camping and put my phone on airplane most 80% of the time except when I needed it. It lasted me nearly 3 days! Does LTE consume a lot of battery power? Does wi-fi do also?
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Yes to both of your final questions. LTE uses a ton of power. I went to the San Jose area where it's only HSPA and my battery was phenomenal. Wifi may drain significantly if "best wifi performance" is enabled in advanced wifi settings.
Check what uses your battery overnight. What process does it say under power in settings? 12% for 8 hours isn't really that bad..
Sent from my HTC One X using xda premium
RPTheLefty said:
Hi everyone,
I noticed that my One X has been losing about 12% of battery life while asleep for 8 hours (while I'm sleeping). Is that normal? How much battery life do you lose when you don't use the phone? I leave wi-fi on and that's about it. I checked to make sure that the phone isn't awake during this period.
My battery life has been good on some days (lasts about 20 hours) and bad on some days (lasts about 10 hours) with almost identical usage. Any tips on improving battery life?
I went camping and put my phone on airplane most 80% of the time except when I needed it. It lasted me nearly 3 days! Does LTE consume a lot of battery power? Does wi-fi do also?
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Wifi consumes the least power of all, but like the post above says, if you have "maximum wifi performance" enabled in your advanced wifi settings then it will prevent your phone from going into deep sleep and drain more battery than it would if that option was not checked. Overnight I usually drain about 1% an hour or less (on both CleanROM DE and AOKP M6.2).
I think it's not LTE drains the battery. It may be because of searching of networks when signal on LTE is bad.
Sent from my HTC One XL using xda app-developers app
akaivan said:
I think it's not LTE drains the battery. It may be because of searching of networks when signal on LTE is bad.
Sent from my HTC One XL using xda app-developers app
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It's sort of both. When you have a good LTE connection while using data then it uses up more battery or if you have a poor connection without using data you will use even more battery or if you have a poor connection while using data that would be the worst for battery. But if you are in a good coverage area and not using data then the battery should be fine.
Drain of 12% over 8 hours (1.5% per hour) of screen off time is pretty damn good. Certainly nothing to complain about. I get somewhere around 2.5% per hour overnight.
Phone battery last forever when in airplane mode. The phone radios are a big consumer of power, often second only to screen-on time. Way back, I had my old HTC Tilt2 in airplane mode in a location with no cell service (basically just using the phone as a watch and camera), and it was on track to last about a week (maybe more) before needing a charge.
12% is what I get overnight. But If I turn off WiFi before sleeping then I get around 5% loss so turn off WiFi if you need more battery.
Sent from my HTC One X using xda app-developers app
karan1203 said:
12% is what I get overnight. But If I turn off WiFi before sleeping then I get around 5% loss so turn off WiFi if you need more battery.
Sent from my HTC One X using xda app-developers app
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I feel that most people would get better battery with WiFi turned on. It seems the area you place your phone overnight is not getting a good WiFi signal and/or you might have some of your settings to sync or download while on "WiFi Only".
It varies from person to person and it usually ends up being something in the settings, specific apps, and/or quality of connection (mobile or WiFi).
I don't get signal inside my work but we have WiFi in the building. No matter whether I have my mobile network on or off, my battery drains fast because it's searching for a cell signal. I normally turn airplane mode on to remedy that. Is there a way to keep the phone from constantly searching for signal even when I have mobile networks off so I can at least keep WiFi on?
When I got my S2 10 days ago, I followed advice to help with battery life by switching off wifi and NFC. Battery life has been very good (currently have 62% after midnight having taken it off charge at 7am). I charge every night so I could turn wifi on but what would the benefit be? If I go upstairs in my house without taking my phone the BT connection drops. Would wifi prevent this? Is it an either/or BT/wifi connection or can they both be used at the same time?
The point of wifi is to keep your connection when you loose bt connection. I question how much battery you save if you phone is constantly searching for bt connection. I have wifi and bt on all the time and have about 48% at 11 pm