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wifi or 3G for battery consumption

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.
Click to expand...
Click to collapse
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.

battery life

anyone feel as if their battery life sucks? I do have 4g on at all times but I didnt think it would make that big of a difference in terms of battery life.

See my post here:
http://forum.xda-developers.com/showthread.php?goto=newpost&t=839935
Try installing a monitoring app and see if your init process is hitting the CPU hard. I haven't heard from any other mt4g users with the same problem, but lots of.desirehd users have it.
I also have seen my suspend process eating 50%+ CPU when the phone is locked/screen off. Haven't found a fix for that yet though.

I'm getting a full 24 hours of heavy texting, moderate phone calls. Battery life is better than my magic... im having no issues.

Yes, I woke up this morning and my phone was already blinking and battery is on 8%. I left it overnight with more then 60%
A big problem also is that SetCpu cannot force the scale. If limit to 768 Mhz it still scale to 1024. So not I am sure that my ScreenOff profile with 245 Mhz DOESN'T WORK!
THAT'S SUX!!!

QUEDRO said:
Yes, I woke up this morning and my phone was already blinking and battery is on 8%. I left it overnight with more then 60%
A big problem also is that SetCpu cannot force the scale. If limit to 768 Mhz it still scale to 1024. So not I am sure that my ScreenOff profile with 245 Mhz DOESN'T WORK!
THAT'S SUX!!!
Click to expand...
Click to collapse
Weird I leave my phone at full overnight and its still at full when I wake up.

Try disabling the preflock that might help before I did that it wasnt scaling properly now afterwards it is.
Sent from my HTC Glacier using XDA App

I have frozen a few apps and use advanced task killer every time i start up 9a lot of apps come on at start-up).
The result is pretty good battery life. I have only gone dead when I had a few apps (like GPS navigation) running in background and forgot about them.

I'm having 0 issues with my battery. It easily beats out the battery life on the Samsung Vibrant I had.

I'm having issues too. My battery life today was 40% at 1 PM, and when I left this morning, it was full. I hardly even used the phone except to check email :/ I have brightness on auto and wifi off. Not sure what the issue is.

My battery life has been really good. A typical cycle is charge to full and disconnect power at 10:00 pm. Up at 6:00 AM, battery is still on 100%. Today my use has been moderate to heavy. It's now 2:30 PM and I have 68% left. I typically have around 30 percent left when I put in back on the charger. I'm happy with that.
Wifi, Bluetooth, GPS, etc., are kept off until I use them. I do however leave Background data and Auto-sync on all the time.

I turned on USB Debugging as recommended and my battery life is much better. Right now it hasn't been charged in 9 hours and is at 79%. I've downloaded 2 apps, updated 3 apps, sent multiple emails, light internet use, and 3-4 calls. I'm unrooted and don't use any task killers.

LAVS1 said:
I turned on USB Debugging as recommended and my battery life is much better. Right now it hasn't been charged in 9 hours and is at 79%. I've downloaded 2 apps, updated 3 apps, sent multiple emails, light internet use, and 3-4 calls. I'm unrooted and don't use any task killers.
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Click to collapse
That's awesome. I'm going to turn on USB Debugging mode and see if I can squeeze a little more juice out of it.

I have had intermittent battery-drain issues too. On Saturday morning my battery went from 100 down to 76% in a matter of an hour or two with hardly any use. I did a restart and it seemed better. I've also gotten into the habit of restarting my phone once a day, right before I take it off the charger in the morning. I've turned off quick boot, which I read somewhere in the forums can affect battery life. It's been pretty good the last few days. I'm at 68% now off charger for 9.5 hrs with moderate amounts of wifi, web browsing, email, and 3G network usage. I'm new to android devices so I don't have much to compare that to, but it's working for my schedule.

heavy user - fully charged phone at 7am ... start using after 7:30am
check emails, fb, txt, barely to no calls.....phone will be down to about 20% at 1:30~2pm....
yes the battery is lame...but this is a known issue with HTC...the 3.8 screen drains a lot of battery also the constantly searching for HSPA+ and 3G...
I do notice when screen is off....this phone still drains battery !!! bad =(
left over night at about 65% left in the morning I got red blinking led saying phone is below 10% .... 50% gone!!!
I think restarting the phone after a full charge is a good idea....also maybe turn off quick boot?
*update* yes I found that when you have a bad signal and it's jumping between E and H ... this eats up battery
also installed Advance Task Killer (for froyo) this helps~ now from 8am my phone can last until about 4pm getting about 3~3.5hrs more life

Mine lasts all day with everything on, playing games, email, text, etc, etc.
It is great, best phone I have had. Not sure what the issue is unless it is root.

It depends where you live.
If you get a good antenna signal, your battery will last.
At my apartment signal is low, so phone is constantly between UMTS and GPRS, plus phone is trying to hold H, so that drains the battery.
My signal strength parameters:
between -101 dBm and -107 dBm (where -110dBm is the edge of the signal/loosing signal)
3 asu and 7 asu

Cell Standby?

Curious on my battery usage - I just fully charged the phone last night (w/it off) and unplugged it 1 hour and 46 minutes ago - I'm already down to 82%, I was on FB for not even 2 minutes, and that's it, no calls, no texts, no nothing.
Battery Stats indicate Cell Standby has used 50% of the battery, Phone Idle has 48% and the display is only 3%.
Running w/4G on in a full 4G area.
Literally just sitting there the phone is having the life sucked out of it - I think it's the 4G radio. On my last ROM when I put the phone into just 3G the battery was much, much better. What the heck is VZW doing so that 4G sucks the life out of the phones?
I'm running CM7 w/the 2.5. Wonder if the 2.0 radio would be better.
Any thoughts?

chimpsnest said:
Curious on my battery usage - I just fully charged the phone last night (w/it off) and unplugged it 1 hour and 46 minutes ago - I'm already down to 82%, I was on FB for not even 2 minutes, and that's it, no calls, no texts, no nothing.
Battery Stats indicate Cell Standby has used 50% of the battery, Phone Idle has 48% and the display is only 3%.
Running w/4G on in a full 4G area.
Literally just sitting there the phone is having the life sucked out of it - I think it's the 4G radio. On my last ROM when I put the phone into just 3G the battery was much, much better. What the heck is VZW doing so that 4G sucks the life out of the phones?
I'm running CM7 w/the 2.5. Wonder if the 2.0 radio would be better.
Any thoughts?
Click to expand...
Click to collapse
It's not the 4G radio, I use "LTE only" and can constantly get 40-45 hours out of my battery. Have you tried that setting or are you using CDMA/LTE mode?

chimpsnest said:
Curious on my battery usage - I just fully charged the phone last night (w/it off) and unplugged it 1 hour and 46 minutes ago - I'm already down to 82%, I was on FB for not even 2 minutes, and that's it, no calls, no texts, no nothing.
Battery Stats indicate Cell Standby has used 50% of the battery, Phone Idle has 48% and the display is only 3%.
Running w/4G on in a full 4G area.
Literally just sitting there the phone is having the life sucked out of it - I think it's the 4G radio. On my last ROM when I put the phone into just 3G the battery was much, much better. What the heck is VZW doing so that 4G sucks the life out of the phones?
I'm running CM7 w/the 2.5. Wonder if the 2.0 radio would be better.
Any thoughts?
Click to expand...
Click to collapse
maybe switch to 3g only when not using the phone???

Battery life question

I recently bought a g2x. I previously had a Optimus v with cm7 that I liked, so I pretty much immediately installed cm7 on my g2x. I've noticed my battery will drain 25% on stand by overnight. Just wondering if this is normal, and if the stock rom is any better in this regard?

Well...its normal but at the same time its not, and i'll tell you why. Mine drains about 5-10% overnight (around 7 hours) and with wifi on it is usually even less, about 3-5%.
Though there HAVE been instances where it has drained about 20-30%, usually I just pull the battery (or restart the phone a couple of times) and it seems to fix it till the next time it happens.
In fact just last night it drained 35% =\ but normally it is around 10%.
Im on weapon G2x

My phone drains about 3% overnight. Wifi and data off. CM7 with Faux kernel and setcpu screen off profile.
Sent from my LG-P999 using Tapatalk

It honestly depends what kind of network signal you're getting.
I've had mine drain a considerable amount one night just because I had low signal. Especially when you have low signal AND data on.

Mine drops 5-10% at night, sometimes less. I either keep it on 2G with data off or wifi with wifi calling on. Wifi calling seems to save a ton of battery.
But, leaving data on and 3G on I drop 30% or so.

yeah, as everyone says, depends on your usage (and/or signal). i've gotten 12h, i've also had 4 days, it really differs on lots of factors.

Battery Life Question.

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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Click to collapse
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?
Click to expand...
Click to collapse
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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Click to collapse
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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Click to collapse
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).