Sure, if you are concerned over about 2% to 5% of battery power per hour when devices are connected, and up to 1% per hour (usually less) when devices are not connected, you should definitely be vigilant about turning the Bluetooth radio off except when you want to connect something. Since I am not concerned about such minimal amounts of power (I use my iPhone like my computer, so need to charge every day, but get much better battery life than my laptop), 1% or less per hour does not make a difference.
The same is the case for wifi. Unless you are using an app which utilises wifi, the wifi radio remains virtually dormant. In fact, the 1% power use per hour I have noticed is with both bluetooth and wifi turned on. GPS radio reception, on the other hand, uses around 10% to 15% per hour when being accessed by a navigation app. For this reason, I remove navigation apps from the app switcher after use just in case they call the GPS radio whilst in standby. In my personal opinion, considering how functional the iPhone is, if someone removes all the functionality to preserve battery life for avoiding plugging in at the end of each day, why not spend considerably less for an accessible Android basic phone. Wasting the true power of the iPhone as a portable computer because one is so focused on preserving battery life for a couple / few days honestly does not make sense to me. This is especially the case with the iPhone 5 and its lightning connector, the easiest connector for a portable device I have ever used. David Chittenden, MSc, MRCAA Email: dchitten...@gmail.com Mobile: +64 21 2288 288 Sent from my iPhone On 23/01/2013, at 2:22, Christopher Chaltain <chalt...@gmail.com> wrote: > I would assume bluetooth is also using some power if you have it looking > for available networks. > > On 22/01/13 02:26, David Chittenden wrote: >> Only a few percent per hour. Bluetooth is managed extremely well by iOS. >> Also, Bluetooth is a low power short range communication technology. Wifi >> drains battery more rapidly, but only when actually connected and >> transmitting / receiving data. Again, Apple iOS has some of the best power >> management systems in the industry. >> >> David Chittenden, MSc, MRCAA >> Email: dchitten...@gmail.com >> Mobile: +64 21 2288 288 >> Sent from my iPhone >> >> On 22/01/2013, at 7:16, "Negoslav Sabev" <neg...@gmail.com> wrote: >> >>> Thank you for confirming this. And does this drain your battery more >>> quickly? >>> >>> Negoslav >>> ----- Original Message ----- From: "Eileen Misrahi" >>> <eileen.misr...@gmail.com> >>> To: <viphone@googlegroups.com> >>> Sent: Monday, January 21, 2013 9:09 PM >>> Subject: RE: using simultaneously 2 bluetooth units >>> >>> >>>> Hi, >>>> >>>> I do it all the time with my mini bT keyboard and my Plantronics BT headset >>>> when I am traveling around to work and social outings. >>>> >>>> Eileen >>>> >>>> -----Original Message----- >>>> From: viphone@googlegroups.com [mailto:viphone@googlegroups.com] On Behalf >>>> Of Negoslav Sabev >>>> Sent: Monday, January 21, 2013 10:35 AM >>>> To: viphone@googlegroups.com >>>> Subject: using simultaneously 2 bluetooth units >>>> >>>> Hi there, >>>> >>>> Is it possible to use simultaneously bluetooth keyboard and headphones with >>>> IOS devices? >>>> >>>> Negoslav >>>> >>>> -- >>>> You received this message because you are subscribed to the "VIPhone" >>>> Google >>>> Group. >>>> To search the VIPhone public archive, visit >>>> http://www.mail-archive.com/viphone@googlegroups.com/. >>>> To post to this group, send email to viphone@googlegroups.com. >>>> To unsubscribe from this group, send email to >>>> viphone+unsubscr...@googlegroups.com. >>>> For more options, visit this group at >>>> http://groups.google.com/group/viphone?hl=en. >>>> >>>> >>>> >>>> -- >>>> You received this message because you are subscribed to the "VIPhone" >>>> Google Group. >>>> To search the VIPhone public archive, visit >>>> http://www.mail-archive.com/viphone@googlegroups.com/. >>>> To post to this group, send email to viphone@googlegroups.com. >>>> To unsubscribe from this group, send email to >>>> viphone+unsubscr...@googlegroups.com. >>>> For more options, visit this group at >>>> http://groups.google.com/group/viphone?hl=en. >>>> >>> >>> -- >>> You received this message because you are subscribed to the "VIPhone" >>> Google Group. >>> To search the VIPhone public archive, visit >>> http://www.mail-archive.com/viphone@googlegroups.com/. >>> To post to this group, send email to viphone@googlegroups.com. >>> To unsubscribe from this group, send email to >>> viphone+unsubscr...@googlegroups.com. >>> For more options, visit this group at >>> http://groups.google.com/group/viphone?hl=en. >>> >>> >> > > -- > Christopher (CJ) > chaltain at Gmail > > -- > You received this message because you are subscribed to the "VIPhone" Google > Group. > To search the VIPhone public archive, visit > http://www.mail-archive.com/viphone@googlegroups.com/. > To post to this group, send email to viphone@googlegroups.com. > To unsubscribe from this group, send email to > viphone+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/viphone?hl=en. > > -- You received this message because you are subscribed to the "VIPhone" Google Group. To search the VIPhone public archive, visit http://www.mail-archive.com/viphone@googlegroups.com/. To post to this group, send email to viphone@googlegroups.com. To unsubscribe from this group, send email to viphone+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/viphone?hl=en.
