Concerning devices that store electrical power which can be used to run various devices in the absence of external power.

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2
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1answer
121 views

Chrome continues running even when Mac should be is asleep

I have the latest version of Chrome running on my Mac. I've noticed that even when I close the old intending to put my computer to sleep, Chrome continues running. I know this is the case because I ...
0
votes
0answers
82 views

External Firewire Audio Interface Overheating Macbook Pro 6,1

When I connect an external firewire audio interface to 17" Macbook pro 6,1 2.53ghz i5 the computer heats up at an alarming rate. I've heard all sorts of things on the internet, but still no reasonable ...
2
votes
1answer
237 views

Skype video call taking a lot of battery power on mavericks

I have got mavericks 10.9.2 and latest Skype version 6.14(351) on a MBA 2013. Whilst on a video call with one person only both cameras turned one and very good wifi signal Skype drained about 18% of ...
2
votes
1answer
61 views

Is there a solution for preventing battery drain on the 5s after the iOS 7.0.6 update?

I have tried a hard reset, removing Outlook email account, and closing all apps and turning off Background App Refresh.
3
votes
0answers
88 views

Erratic battery percentage behavior

I purchased an iPod Touch in December 2011. It came with a Target 2 year warranty. From the time I started using it the battery never read correctly. I decided before the warranty was up in February ...
0
votes
0answers
261 views

iPod Nano doesn't get fully charged when connected to MBA

I've a 7th generation iPod Nano. And it's working fine. I usually used to charge it either by connecting it to a wall charger or through my iMac. And every time it got charged just fine. The battery ...
1
vote
1answer
118 views

Connected new charger with Macbook Pro. Both Macbook Pro and Charger stopped working. Any reasons?

My macbook pro charger stopped working sometime ago. In the meanwhile I have been using friend's charger without any problem. Today I bought a second hand charger and when I tried to connect it with ...
0
votes
0answers
90 views

Charging issue MacBook Pro (late 2009)

I came home one day and the battery on my MacBook was dead. I plugged it in and the light stayed green. After doing some research I reset the SMC and that didn't work. It caused the light to blink ...
0
votes
0answers
13 views

iPhone 4 CDMA does not charge when it came 92% battery [duplicate]

I had the iPhone 4 CDMA, it had a problem is it didn't charge when the battery came 92%. I have no idea about that, does anyone could tell me what exactly it is?
1
vote
2answers
1k views

iPad 2 charging very slow

My iPad 2 has recently become VERY slow to charge- about 1% every 10 minutes while plugged into my Retina MacBook Pro (my usual charging source). I've tried both USB ports on the rMBP and neither ...
2
votes
1answer
112 views

Unresponsive Trackpad Click After Battery Depletion

I had a very odd situation happen with my machine at the weekend and wondered if anyone could shed some light on it. I have an early 2013 Retina MacBook Pro and I was watching a DVD on it using the ...
0
votes
0answers
528 views

Macbook Pro Early 2011 with Mavericks suddenly got battery died

I've got a MacBook Pro 15" (Early 2011, i7 2.2/750GB/HD6750M) and I did some upgrades later on including 2x4GB RAM, a 256GB SSD and a 750GB HDD to replace the optical drive. This machine was smoothly ...
3
votes
1answer
49 views

How many hours since I unplugged my Mac?

Mobile phones usually say this as "xyz hours on battery" by counting the time from when they are unplugged from power. Can I find out how many hours has it been since I unplugged my Mac from charging ...
1
vote
1answer
165 views

New MBP 13 retina late 2013 battery problem

I just have bought new MBP 13 retina late 2013 and after installing: adobe photoshop, office for mac 2011, xcode, eclipse, java, and MAMP is battery life too short. 100% charched battery is remaining ...
6
votes
2answers
631 views

brown sticky residue in my macbook pro charge port

i have just noticed a brown type of sticky residue in my charge port on my macbook, it wipes off but not completely and to me it smells like battery. can anybody tell me if i have a problem here or if ...
0
votes
2answers
714 views

MacBook performance while on battery vs plugged in

Should I expect my MacBook Air to run slower while on battery vs while plugged in? In other words, will it slow down the CPU/graphics/etc while on battery to conserve power?
1
vote
2answers
284 views

MacBook Pro battery life tanking even after battery replacement?

I've been having some issues with battery life on my MacBook Pro (15", Mid 2010). I thought I had tracked it down when I found out that the battery was near the end of its life (only holding 60% of ...
1
vote
1answer
134 views

Battery issue with iOS7 and iPhone4

So, I have IOS7 installed in my iphone 4. I first noticed this bug as follows: When I get home around 18h I plug-in the computer, and at around 23h before going to bed it's already 100% for some ...
0
votes
1answer
14k views

iPhone 5s: Which consumes more battery, 4G, or 4G LTE?

Under Settings > Cellular, there's an option to enable/disable LTE. When disabled, my phone reverts to 4G, as indicated by the icon in the status bar. I've read elsewhere that using 3G causes greater ...
0
votes
1answer
4k views

My iPad Mini won't turn on after charging

Last night I went to use my iPad and found the battery was completely drained. So, I charged it, after a few minutes it turned back on, and I looked at the battery symbol and it had said that it was ...
0
votes
1answer
187 views

Is it bad to use MacBook pro with battery every day.

Is it bad to use new MacBook Pro with battery every day? Or would it be better for the battery lifetime to use battery only one day a week? The problem is that I don't think I can change battery if ...
1
vote
0answers
78 views

Does APNS work over LTE, or only UMTS/GSM and WiFi?

Over at Android Enthusiasts, we are having a discussion of what's more battery-life efficient — having APNS over GSM or UMTS networks during sleep, as TS4264 appears to indicate (thus ...
2
votes
3answers
15k views

Why does my battery drop with 1% within a minute after removing the charger?

I just got a new iPhone 5S a week ago. Works perfectly aside from the fact that the battery tends to act weirdly. As mentioned in the title, when I remove the charger the battery percentage drop by a ...
0
votes
1answer
995 views

Correct battery voltage for new MacBook Pro battery

I have a 17" Macbook Pro (5,2 mid 2009, MC226LL/A) that has a battery that is in need of being replaced. I'm looking for the correct battery for it and have found various batteries that say they are ...
0
votes
2answers
55 views

What counts as a partial charge for my rMBP?

I just recently decided to switch over to the Mac for the first time by buying the latest Retina MBP (which shipped with Mavericks). I use it like a commuter where I have it unplugged for a couple of ...
1
vote
2answers
195 views

How can I force a Mac laptop to shutdown when the battery is below 25%?

It is common wisdom that Lithium-Ion batteries should not be left with 0% charge. However, some users might not be aware of this common wisdom, or simply refuse to concern themselves about proper ...
3
votes
1answer
126 views

Apps using significant energy terminal/applescript

Does anyone know how to access the "Energy Impact" data used to determine "Apps Using Significant Energy" displayed in the battery menu bar? I'd like to use it in a shell-script/applescript.
1
vote
1answer
448 views

MacBook Pro Suddenly Goes to Sleep and Will Not Wake Up

I have 15-inch, Mid 2010 MacBook Pro running Mac OS X Lion 10.7.5. It will occasionally (every other day) without warning go to sleep. I can see the sleep indicator on, but otherwise it is completely ...
-1
votes
1answer
930 views

White screen problem in iphone 3gs

Hello i have iPhone 3 gs and i have amazing problem when i lock my phone then after 15-20 seconds its shows white screen then i have to restart it what to do in this case is this a battery problem ? ...
0
votes
1answer
23 views

Does Exist any way to change battery of MBP 2012 13" with a bigger one?

The question is simple, can i make an upgrade of my battery? I mounted a OWC datadoubler, and now i'm using an SSD and HDD configuration. But my battery life dropped from 6 to 3h 30... i would like to ...
0
votes
3answers
9k views

Why the iPhone doesn't automatically switch 3G off when connected to a wireless network?

This doesn't make any sense to me: why the iPhone doesn't automatically switch 3G off when connected to a wireless network? I always thought iPhone did that since the very beginning and my battery ...
3
votes
1answer
1k views

Using bash/terminal to get number of battery recharge cycles

I would like to get the number of recharge cycles using bash (terminal commands). I understand the following command will display all of the battery data, but I want the cycle count on its own ioreg ...
5
votes
4answers
7k views

How to disable the SpeedStep when using MacBook Pro without a battery?

First of all, the specs: MacBook Pro (15-inch, Early 2011) OS X 10.9.1 (Mavericks) 2.3 GHz Intel Core i7 8 GB RAM The Problem Recently, my battery randomly died and I had to disconnect it, ...
3
votes
2answers
147 views

Poor battery stats on rMBP late-2013

I unpacked my new MacBook only 2 days ago and it showed 9-10 hours of battery life (as advertised). I didn't calibrate it, since it is no longer necessary (I was told). Today I noticed that it ...
0
votes
1answer
121 views

New MacBook Battery and charging

I bought a new battery as my old one cut out the system. Since installing the new one its been acting really strange. It's been sitting around 2-5% charge for the past few hours and now I've got it ...
0
votes
0answers
77 views

Macbook charger/MagSafe DC-in drive issues?

Hello everyone—I'm having really bizarre issues with my macbook charging. Prepare for a lot of information. The facts are these: I have an A1286 15" unibody macbook pro My genuine apple 85w ...
1
vote
0answers
84 views

Battery value in terminal different to battery value in menu bar

My MacBook Pro Retina is currently reporting 100% battery in the menu bar, however if I run the following command in terminal; ioreg -l -w0 |grep Capacity The following is returned; | | ...
2
votes
2answers
2k views

iPhone 5 shuts down at 25% on iOS 7.0.4

My iPhone 5 has been shutting down earlier than normal at lower battery levels. First, it started to shut down around 10%, then it increased to 15%, 20%, and finally 25%. I used to be able to run it ...
0
votes
0answers
42 views

iPhone 4 doesn't power on, but is recognised by PC

My fiancée's iPhone 4 doesn't seem to want to boot. I originally thought it was just not charging, but my PC recognises it when I plug it in via USB. Might just be that the USB logic (e.g. FTDI) ...
4
votes
1answer
744 views

iPhone 5 Battery - Help me diagnose issue

I'm having a weird issue with my iPhone 5, that I think is related to the battery, but might be something else. Symptoms The battery indicator is wrong. It sticks to the value it fetches when ...
0
votes
1answer
204 views

How to get Apple to repair iPhone under statutory warranty?

My iphone 5's battery after a bit more than a year is dying. I bought the iPhone via the German Apple Online Store. Hence I have 24 months of EU statutory warranty. The iPhone is otherwise in great ...
0
votes
1answer
41 views

Energy saver 101 : sleeps after or when battery is at x hours?

Using Mac OSX on a macbook pro. in energy saver - battery tab : if i have sleep at 1 hour, does that mean the computer will sleep after an hour on battery OR when there is a about an hour of battery ...
1
vote
1answer
5k views

How do you turn on a iphone 4 when your power button doesn't work and your phone wont charge?

This is the second time my phone turns off on full battery and I cant turn it back on last time i waited two days i guess it drained the battery and all but this time my phone was on 30 % I've called ...
5
votes
1answer
166 views

What is the font the battery percentage uses?

A bit of a stupid question, but what is the font the battery percentage (pictured below) in OS X uses? It is not the standard font you can get by calling [NSFont menuBarFontOfSize:0], I have ...
1
vote
0answers
290 views

MBP restarting twice after going into deep sleep from a fully drained battery

Ever since I installed Mavericks on my 15" Mid-2012 MBP (4GB), I've noticed that if I let my machine completely drain to 0% and it (supposedly) goes into Deep Sleep, when I plug it back in and ...
0
votes
1answer
41 views

How do I fix my iPhone 4?

I am currently having problems with my iPhone. So it froze last night and went completely black. so I left it for a while, hoping it would un-freeze. then all of a sudden it turned off and I tried to ...
5
votes
1answer
1k views

How to have my MacBook Pro safely hibernate when out of juice?

My all new MacBook Pro was on the battery, and warned me that the battery was almost finished. I left the Mac take care of himself. Later, I plugged the Mac and I pressed the button Power. Hearing the ...
1
vote
3answers
6k views

2013 macbook retina has extremely short battery life

I've recently bought the new macbook pro 13" retina (2013) this November and noticed that it has extremely short battery life compared to my old macbook pro 13" (2010). On a full charge, my new ...
3
votes
2answers
4k views

Difference between autopoweroff and standby in pmset

I just got a new Retina MacBook Pro 15". After getting some downloads interrupted due to the computer going to sleep (even on AC power), I started looking at the man page for the pmset command. I did ...
1
vote
1answer
40 views

Lots of weird stuff happening today

So I'll just list the symptoms I've experienced in the last few hours, so far I can't seem to find a pattern, suffice to say the macbook is virtually unusable for my purposes. It's a 2010 Macbook ...