Tagged Questions
0
votes
1answer
72 views
Do apps placed in the background consume resources? [duplicate]
I've heard that leaving open apps on an iPhone, affects the duration of the battery's charge. Is this true and documented, or some of an urban legend? And does it affects other apps' performance?
0
votes
1answer
614 views
iPhone 4S - sudden drop in battery percentage
I've bought a half-year-old iPhone 4S a couple of weeks ago and I just ran into a really weird issue the third time now: the battery percentage would suddenly drop 30-40-50%. One minute, it's, say, ...
0
votes
1answer
5k views
iPhone 5: Heating up (and losing battery life) on “4G” [closed]
My new iPhone 5 (I preordered mine from AT&T on the morning of the 14th and received it on the 21st, so I might have one from one of the earlier batches) likes to heat up intermittently.
I've ...
2
votes
2answers
2k views
Which Personal Hotspot mode uses least battery?
Both iPad and iPhone's Personal Hotspot mode allows 3 ways to connect:
WiFi
USB cable
Bluetooth
I want to use Personal Hotspot on my MacBook Pro, this means that I can use either of the three. ...
6
votes
1answer
4k views
How to figure out iOS device battery health?
I'm looking for ways, similar to coconutBattery for OS X to figure out current health of battery for iOS devices.
2
votes
3answers
3k views
Does a black screen save battery on an iPhone 4?
Where can I found information about the power consumption of an iPhone 4 display? Which technology is used? Does it save battery lifetime when the screen displays black or dark pixels?
Additionally, ...
3
votes
1answer
227 views
Is switching 3G/4G off to save power a cheap trick?
Since UMTS is a lot fast than EDGE, data transfers via UMTS take less time.
When downloading the same file, it would take longer to be downloaded via EDGE.
Doesn't the difference in transfer time ...
1
vote
4answers
1k views
iOS 5 Upgrade: Massive Battery Drain and Crashing Phone App
I upgraded to iOS 5 a few days ago. Although the installtion was a bit bumpy, everything completed successfully. However, since the upgrade, the following symptoms have occurred:
Phone battery life ...
0
votes
2answers
142 views
How to improve the iPhone battery?
Hi all I was looking for a solution to prolong my battery life potential.
Is there a replacement battery for iPhone that is more powerful than the one in-built when we bought it?
Or is there an ...
0
votes
1answer
125 views
iPhone tag - You're it [closed]
I want to create a game which can detect players within a set range.
Let's say.. if they're within 5 meters of eachother. The It player will tag the second player.
How would this best be done.. Tag ...
4
votes
3answers
1k views
When plugged in, does the iPhone use the battery or the external source during heavy use?
I love to play games and do other tasks that quickly drain the iPhone's battery. Sometimes I'll use the phone while plugged into a power supply. Does the iPhone still use the battery when performing ...
1
vote
1answer
338 views
iPhone sending a lot of packets addressed to weird destinations, draining battery quickly
I have a jailbroken iPhone. Recently, I have realized that its battery usage is abysmal. Suspecting that it has something to do with the radio, I downloaded Data Counter from Cydia to check real-time ...
4
votes
1answer
670 views
iPhone 3GS battery oddities
I bought a 3GS in August 2009. After about 9 months I started seeing occasional precipitous drops in battery level overnight (i.e. from 50% to "dead", as in all you see is the red "charge me" icon). ...
12
votes
2answers
5k views
Why does GPS on the iPhone use so much power?
I keep reading in articles that GPS on the iPhone, or any cell phone for that matter, uses a lot of power, but I've never heard an explanation of why.
Why is this? The phone doesn't have to transmit ...
13
votes
4answers
2k views
Can iPhone battery apps actually prolong battery life?
I've seen a few apps that claim they do some kind of conditioning/deep charge/other jargon to extend the life of an iPhone battery. Is this just hokum or do I really need one of these apps to maximize ...
