Clearing up confusion on battery usage with Wifi/3g enabling/toggling? - Android Q&A, Help & Troubleshooting

Can someone clear up what it means for the battery when both Wifi and 3g are enabled at the same time but only one is connected? So when I pull down my status bar (on Gingerbread) both are lit up. Depending on where I am, only one will be connected. What does it mean (battery wise) for a constant on Wifi connection to have 3g data enabled at the same time, and more importantly what does it mean to have 3g enabled and wifi enabled at the same time yet set to sleep/never? If I toggle wifi when the screen goes on via a battery saver, is that causing more battery drain constantly turning the wifi on and off than having the wifi kept alive (still sounds like this would not save the battery from the name but that's what I read!) Surely if there are only a few hotspots I connect to, it seems that using a location based wifi manager to turn it off when traveling makes sense. But when at a location, even on battery, is it best to just leave the wifi on constantly or would toggling with screen off save more energy?

Toggling it would increase battery life.
Sent from my GT-I9100 using XDA

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[Q] wifi issue

My wifi connection often wrong, always in after a period of using, have no access to the Internet. Every time the wifi turned off to open another can get to the Internet, can wifi signal is always full. I searched a lot of method to did not solve, including XDA * # # 0011 turn off on wifi power save mode, when problem solving, but after a while just the same. And with only G mode and so on route, are not solutions. Change a lot of Rom, the kernel baseband all not line.Who's a way to solve?
I am not sure if this is the case but - have you tried different router? My S3 for example has issues when I go to my friend's house (he has some old/er Belkin router). However, when I am home wifi is blazing fast and no issues what so ever (cisco e3000).
my phone has a slight different problem, the phone detects strong signal for all my wifi, but will only save it, and not connect right away, some will not even connect, and sometime the speed is very slow.
BobFL said:
I am not sure if this is the case but - have you tried different router? My S3 for example has issues when I go to my friend's house (he has some old/er Belkin router). However, when I am home wifi is blazing fast and no issues what so ever (cisco e3000).
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I am sure there is no porblem with the router,SGS2 and IP4s with the same router is fine.
I'm getting WIFI problems when waking from deep sleep. My settings are set to keep WIFI on when sleeping only when plugged in, as i find this extends my battery life a little more.
Sometimes it reconnects when waking up, and other times it doesn't and i have to turn WIFI off and then on again to force it to scan and reconnect. If i don't do this and check WIFI, it says it's scanning, but never finds or connects to a network.
Anyone else get this?! I read somewhere about sleep of death on GS2?
There is a known problem with the wifi, I have just changed my phone and so far evrything is working.
been through 9-10 phone with different problems.
Ok, i've tried turning off WIFI power save in the system settings *#0011#
I'll report back with my findings in terms of waking from sleep and possible additional battery drain...
Turning off powersave didn't help on my speeds tho. My SGS2 can pull around 5-600KBs a second, while my SGS3 only pulls roughly half despite being at the roughly same location (ie laying next to each other)

[Q] Will toggling Wi-Fi on and off drain your battery?

Will toggling Wi-Fi on and off drain your battery? I'm asking this because I read:
http://www.androidcentral.com/android-101-save-battery-keeping-wifi-alive
Essentially, you want your Wi-Fi sleep policy to be "Never" because when the Wi-Fi sleep policy is "Always," your phone searches for Wi-Fi more often and that drains battery (I think that's what it is saying).
At the moment, I toggle the W-Fi on every time I'm using it and off as soon as I'm done using it in an attempt to save battery. I'm not sure if this actually works or it's actually draining my battery because it would search for Wi-Fi every time I toggle it on.
On my Samsung Galaxy S4, I can't find Wi-Fi sleep policy as mentioned in the article, but I found "Keep Wi-Fi on during sleep." Am I supposed to set this setting as "Always" to save battery life?
Thanks.
P.S.
I toggle Air View and Smart Gestures on a frequent basis as well--not sure if I should do that too.
keep wifi during sleep-always will drain your battery as even if u don't use your phone wifi will be still on

[Q] WiFi using insane amount of battery

What the title says. When my WiFi is off, my batter you does not move when idle or active. When WiFi is on my battery dies really fast
Have you disabled Wifi Always Allow Scanning under Advanced Settings?

[Q]Power management stamina mode not turning off wifi and data

Im new to the M4 from a note 3
I used to use an app called green power to turn off wifi and data when my screen was off and it would turn back on when my screen came on
This saved battery and data usage
I could see the wifi and data getting enabled when my screen would turn on
On the M4 under Power management-stamina mode it says data and wifi will be disabled when screen is off
From what I found it says
It achieves this by blocking data traffic a minute after the handset is placed on standby. Whilst doing this the phone automatically logs your IP address, meaning you are instantly connected once the phone is powered on again.
Is it normal I still see the wifi and data icons as soon as the screen is on with no delay?I figured wifi would be turned completely off as well as data when screen is on so it may take a sec r 2 fr th wifi to reconnect thus I would see nothing then H as 3G would kick in or LTE then Wifi would kick in
Wifi icon is always showing as well as data icon
Can anyone confirm what occurs with their phone with this option on? Is wifi/3G icons still on?
Just want to know if this is normal behavior or if my data is still getting used

Question How to setup wifi/LTE to get best battery saver

Yo,
I dont know which settings are best in terms of wifi/LTE.
I ready I shouldnt have turned on in same time LTE and wifi, is it truth?
But I dont see another working options tbh. If I get bixby routines with leaving home and turning on LTE turning off wifi I need to have GPS on all time. Also if Iam changing by myself turning LTE and WIFI I always forget to turn off LTE and turn on wifi when I am back at home.
What settings u advice me to use for best battery lifespan
Xoltro said:
Yo,
I dont know which settings are best in terms of wifi/LTE.
I ready I shouldnt have turned on in same time LTE and wifi, is it truth?
But I dont see another working options tbh. If I get bixby routines with leaving home and turning on LTE turning off wifi I need to have GPS on all time. Also if Iam changing by myself turning LTE and WIFI I always forget to turn off LTE and turn on wifi when I am back at home.
What settings u advice me to use for best battery lifespan
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Click to collapse
Actually, data is unused when wifi is enabled and connected. If you want to have data to be turned off, then you can create a routine. The only downside is if you are not connected to wifi, data will be enabled but wifi will still be enabled. For this, you need to manually disable wifi. But, keeping the wifi enabled throughout shouldn't really drain the battery a lot or so I have read!

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