Does leaving on WiFi and BT drain battery

MrMister111 · Dec 21, 2012, 06:08 PM

Does leaving on WiFi and BT drain battery? Im talking when not connected, eg if I leave my home WiFi walk along street where there is loads of home WiFi will the iPhone try to connect or handshake or whatever with them via WiFi and thus use battery?

On Bluetooth, once I'm disconnected from my cars BT, with BT still on does it constantly search for other BT, or even registered/paired BT devices thus using battery?

What to people do? Leave these both on constantly all day? Does it shorten battery life? Ha e you tried it on and off?

Cheers

Spink10 · Dec 21, 2012, 06:10 PM

Yes it drains battery

chrisperro · Dec 21, 2012, 06:23 PM

my wifi is on all day,if you using the phone it will search with minimum hit to the battery, if your phone is in standby it won't drain the battery because wifi is off while on standby.
it depends how old is your iPhone ,i have a 4 and battery remains very strong still ,but if you without wifi for a day or so sure turn it off.

Baggio · Dec 21, 2012, 06:36 PM

Quote:

Originally Posted by MrMister111

Does leaving on WiFi and BT drain battery? Im talking when not connected, eg if I leave my home WiFi walk along street where there is loads of home WiFi will the iPhone try to connect or handshake or whatever with them via WiFi and thus use battery?

On Bluetooth, once I'm disconnected from my cars BT, with BT still on does it constantly search for other BT, or even registered/paired BT devices thus using battery?

What to people do? Leave these both on constantly all day? Does it shorten battery life? Ha e you tried it on and off?

Cheers

For WiFi tun off ask to join networks and it will not drain the battery as much. I leave both on as I connect to WiFi at home and at work and I use BT in my car, so I am sure it drains the battery somewhat but it is minimal. When I travel and I don't take my car, I turn BT off.

Also, be aware that if you use maps and/or GPS and your WiFi is off, your location will not be accurate.

MrMister111 · Dec 21, 2012, 06:46 PM

This will be on an iPhone 5 sorry. So turn off "ask to join networks"? Won't this stop me joining networks though or will I just have to manually?

SnowLeopard OSX · Dec 21, 2012, 06:48 PM

In standby, no.
For general usage, yes.

megapopular · Dec 21, 2012, 07:08 PM

Quote:

Originally Posted by SnowLeopard OSX

In standby, no.
For general usage, yes.

If it's turned on, it uses extra battery, standby or not...

ucfgrad93 · Dec 21, 2012, 07:37 PM

Yes it drains battery. That said, I leave my wifi on all of the time. I don't have any bluetooth devices so that is never on. My battery usually will last me an entire day.

determined09 · Dec 21, 2012, 09:40 PM

http://news.yahoo.com/iphone-5-ipad-...194116017.html

Baggio · Dec 21, 2012, 10:20 PM

Quote:

Originally Posted by MrMister111

This will be on an iPhone 5 sorry. So turn off "ask to join networks"? Won't this stop me joining networks though or will I just have to manually?

You will have to join manually.

Starrbuck · Dec 22, 2012, 08:20 AM

Yes, it will drain battery, but not a lot.

Beeplance · Dec 22, 2012, 08:31 AM

Yes, it will have an impact on battery impact, although the significance of the impact will differ.

Dec 21, 2012, 06:08 PM	#1
MrMister111 macrumors 6502a Join Date: Jan 2009	Does leaving on WiFi and BT drain battery Does leaving on WiFi and BT drain battery? Im talking when not connected, eg if I leave my home WiFi walk along street where there is loads of home WiFi will the iPhone try to connect or handshake or whatever with them via WiFi and thus use battery? On Bluetooth, once I'm disconnected from my cars BT, with BT still on does it constantly search for other BT, or even registered/paired BT devices thus using battery? What to people do? Leave these both on constantly all day? Does it shorten battery life? Ha e you tried it on and off? Cheers
	0

Dec 21, 2012, 06:48 PM	#6
SnowLeopard OSX macrumors 6502a Join Date: Dec 2012 Location: Southern California	In standby, no. For general usage, yes. __________________ iPad 4th gen Black/ 32GB/ iOS 6.1.3 iMac G4 1.0 GHz/ 1.25 GHz PPCG4 (7445) iPod \|Classic Black/ 80GB\|U2 edition 20GB iPhone \|4S White/16GB/ iOS 6.1.3\|3G White/16GB iOS 4.2.1
	0

Dec 21, 2012, 09:40 PM	#9
determined09 macrumors regular Join Date: Jun 2009	http://news.yahoo.com/iphone-5-ipad-...194116017.html __________________ Verizon IPhone 5 16GB 15" MBP 2009 Ipod Touch 2nd 8 GB Ipod Nano 8 GB
	0

Dec 22, 2012, 08:31 AM	#12
Beeplance macrumors 65816 Join Date: Jul 2012 Location: Singapore	Yes, it will have an impact on battery impact, although the significance of the impact will differ. __________________ -iPhone 3GS white 16GB iOS 6.1.3 -iPhone 3GS black 16GB iOS 6.1.3 -iPod Touch 4G white 32GB iOS 6.1
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Dec 21, 2012, 06:10 PM	#2
Spink10 macrumors 68020 Join Date: Nov 2011	Yes it drains battery
	0

Dec 21, 2012, 06:23 PM	#3
chrisperro macrumors regular Join Date: Oct 2009 Location: canada	my wifi is on all day,if you using the phone it will search with minimum hit to the battery, if your phone is in standby it won't drain the battery because wifi is off while on standby. it depends how old is your iPhone ,i have a 4 and battery remains very strong still ,but if you without wifi for a day or so sure turn it off.
	0

Dec 21, 2012, 06:46 PM	#5
MrMister111 Thread Starter macrumors 6502a Join Date: Jan 2009	This will be on an iPhone 5 sorry. So turn off "ask to join networks"? Won't this stop me joining networks though or will I just have to manually?
	0

Dec 21, 2012, 07:37 PM	#8
ucfgrad93 macrumors G4 Join Date: Aug 2007 Location: Colorado	Yes it drains battery. That said, I leave my wifi on all of the time. I don't have any bluetooth devices so that is never on. My battery usually will last me an entire day.
	0

Dec 22, 2012, 08:20 AM	#11
Starrbuck macrumors regular Join Date: Jun 2010	Yes, it will drain battery, but not a lot.
	0