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

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iphone 4s won't hold a charge

I updated my iphone 4s operating system to 8.1.3 , now the battery drains from a complete charge in about 5 to 6 hours on stand-by. I replaced the battery with a battery I purchase online. I thought ...
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1answer
19 views

Magic Trackpad stuck battery

I have a Magic Trackpad that sat unused in a work drawer for a few months. Like a total noob, I neglected to remove the batteries. I recently reconfigured my workspace and decided to start using ...
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0answers
28 views

Macbook pro mid-2010 randomly turns off?

This has been happening for around 6 months and it has gotten worse. I thought it was the battery because it had close to 1500 cycles. But I recently replaced it and now the problem seems worse. The ...
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1answer
26 views

Macbook Pro low battery warning to instant recharge

My Macbook Pro (Mid 2012, OSX 10.10.2) sometimes gives the Low Battery warning, then immediately after dismissing the notification the battery pops back up to about 25% battery, still showing a red ...
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1answer
65 views

iPad won't turn on after a complete battery drain

I forgot to plug in my iPad after the critical battery warning and it went some minutes following the warning. I was not worried because same thing had happened a few times before and iPad was ...
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5answers
220 views

How to fix a Macbook Pro (late 2013 model) with liquid damage?

I bought a refurbished 13" Macbook Pro (late 2013 model retina) from the Apple store website in Sept 2014. It worked great till last month, when I had some water leak out in backpack and get through ...
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2answers
23 views

Old iPad not charging

Old ipad charging indicator comes on but doesn't hold a charge. Doesn't build charge either? Any suggestions already tried cable and new transformer.
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1answer
29 views

Battery issue - backup problem?

I recently bought a new iPhone 6, because my iPhone 5 had some weird battery issues: when I was on 3G or 4G, the battery would literally go down from 50% to 10% in like 10 minutes. On the Wi-Fi, it ...
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2answers
35 views

Why is there a pause before the light comes on/mac starts charging when plugging in?

My mental model of a charger is that you plug it in and electricity fires out of it like a hose whether you like it or not. When I plug in my macbook charger, it often takes a few seconds before the ...
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2answers
72 views

Battery is not charging despite SMC reset

I have a problem with charging of my Battery which has been appeared last night. It was working perfectly well for a long time. All of my friends who had different laptops were so jealous at my ...
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2answers
126 views

Kernel_task boosts CPU to 300%-500% (Yosemitte MBP 2011 without a battery)

Long story short, my oldie MBP 2011' battery started bloating, I've contacted a repair service center and they advised me to remove the battery and use it on AC power, while they get a new battery for ...
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1answer
28 views

6hr 33 min to charge last 6% of battery - is this normal?

Exactly as asked - I couldn't figure out why exactly this is happening?
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3answers
59 views

Optimum way of charging apple devices?

I have recently read the article Should you leave your smartphone plugged into the charger overnight? The article listed the following points: You can leave your phone plugged into the charger ...
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3answers
612 views

Battery turned into X after Yosemite

After I installed Yosemite on my MacBook Air, the battery icon is just an X. I have tried restarting the computer, and turning off the computer, then back on, but nothing is happening! Even the ...
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1answer
26 views

iPod Touch 1st Gen charging rebooting loop

I have a 1st Generation iPod touch. When I try to charge it, it goes into a loop: The very low battery logo displays The black screen with white apple logo is displayed The screen shuts down ...
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0answers
29 views

Why is my rMBP drawing twice as much power as my friend's when idle?

Mine is late 2012 and has 8GB RAM. His is late 2014 and has 16GB RAM. Both have an SSD (although of different size) and both are running Yosemite. We set the brightness to 6 pips each and turn off ...
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1answer
47 views

iPod Touch will charge from computer USb, but not from AC outlet

I have an iPod Touch. If I plug it into the AC outlet, with a AC/USB power adapter, the iPod will charge to about 20%, and then stop charging. However, if I plug it into a computer USB outlet (using ...
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1answer
56 views

MacBook Air's battery doesn't charge, Service Battery state, but only 400 cycles

Yesterday everything was fine with the battery in my MacBook Air 13'' 2012 (2 years old). It was lasting for 4-5 hours like new. Today, all of a sudden, the battery has stopped charging at all (I have ...
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1answer
163 views

Is it possible to switch parts between Verizon and AT&T iPhone 5?

I have a water damaged iPhone 5 from Verizon that doesn't work. My cellular plan is also with Verizon. I just purchased an AT&T iPhone 5 from a friend, not knowing that Verizon and AT&T ...
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0answers
42 views

Apple logo flashing?

Last night my iPhone 4s suddenly crashed and I thought it was because out of battery, even though it was still at 17%. I plugged it in and left it for about 10 mins and it turned back on but it was ...
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1answer
29 views

Battery of my Mac with Problems

When I charge my MacBook the battery goes only up to 99% and doesn't reach 100%. Is this something to worry about and if yes, how do I fix it?
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0answers
28 views

I accidental went swimming with my iPod Touch 5th Generation

Today, I went to a river and forgot that my iPod was in my pocket. I was in there for about half an hour, and only noticed it once I was changing into my other clothes. Is there anything I can do to ...
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1answer
176 views

Why is my iPhone 5S battery draining overnight and very quickly?

A few days ago I was charging my phone in my car and it stopped charging, and I noticed that the cord had a little hole and smoke was coming out of there. I was buying some food from a local shop, and ...
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0answers
11 views

iPhone 4 would not turn on [duplicate]

I got an IPhone 4 yesterday and it would only turn on when it's plugged and I bought it new, and it would turn off when I remove from the plug. Please help!
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1answer
44 views

Once I disconnect from the mains, can I leave the charger cable in the Mac?

I use my MacBook Pro on battery as much as possible, recharging when needed and once a month running it down to recalibrate etc. However, when the battery is charged to 100% I unplug the charger from ...
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1answer
71 views

Battery Cycles being used very fast

I am using a 13-inch mid 2014 MacBook Pro with Retina Display. It is about 3 weeks old and already has clocked 13 charge cycles. Is this too high ? Also, I follow the practice of fully charging it and ...
2
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1answer
160 views

Battery jumps from 25% to 2% to 36%. What's going on?

I have a 2012 13" Macbook Air running 10.9.5. I seem to be losing battery life as of late. This, itself, isn't a huge deal, as I usually use the laptop near an outlet, but as of late the more annoying ...
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1answer
52 views

Does turning off wifi improve battery life?

I have an iPhone 5 with an unlimited data plan. I usually have it at home where I only have a mediocre cell signal. I don't want to put it in airplane mode just in case I get a call or text so would ...
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2answers
89 views

Is it better for the battery to leave the iPad plugged when charging is done?

I charge my iPad. Later, I notice that the battery is charged at 100 %. Now, what is better to preserve the battery capacity ? Unplugging the cable. Leaving the cable plugged. The answer may ...
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0answers
28 views

iPhone 4S battery life

I checked Settings > General > About > Diagnostic & Usage > Diagnostic & Usage Data, I was able to see log starting with 'LowBatteryLog...' So there is a problem with the battery - what is ...
2
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3answers
254 views

iPhone 4S shutting down 20-30 % - battery already replaced

I've had my iPhone 4S for 3 years and it now runs iOS 7.1 Battery was performing badly so I decided to replace it. I bought a spare battery online by duracell direct (average quality good!) ...
2
votes
2answers
192 views

Any risks/disadvantages of using MacBook Pro as a desktop?

I have used iMac or Mac Pro for my Desktop system for the past 5 years but now consider replacing them with MacBook Pro Retina in desktop environment. The reason is mostly because I don't like bigger ...
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0answers
180 views

Macbook Pro doesn't boot with replacement battery. 15 inch late 2011

I bought this replacement battery for my 15 inch Macbook Pro late 2011: http://www.amazon.ca/dp/B00OD7OHLY/ref=sr_ph?ie=UTF8&qid=1419964742&sr=1&keywords=macbook+pro+late+2011+battery ...
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1answer
86 views

Trying to restart a MacBook Pro that went off by itself with a battery that indicated “Service Battery”?

My daughter's MacBook Pro (Late 2011 model) just went off while she was using it. Battery was reporting that it required servicing, so apparently, she was pushing it. After it went black, it would ...
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0answers
25 views

Macbook turns on with loud fan noise

Whenever I try to turn on my Macbook, the fans are super loud straight away. My battery is removed (manually because it looked like it was going to explode). I tried to reset the SMC, but that did ...
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1answer
55 views

MacBook 13" white (mid 2007) - how to treat a new battery for optimal battery life?

The old battery of my MacBook 13" white (mid 2007) is dead (as I always had the MacBook on my desktop and did not bother calibrating or discharging the battery). I bought a new one (original Apple ...
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2answers
37 views

Will it hurt my Macbook Air to be plugged into a “Uni Pak II” which is a dimming power source?

I'm at a conference and the only plug is a "Uni Pak II" which is a dimming power source (here's the manual). At first my charging indicator on the end of the MBA plug didn't light, but I slid up the ...
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0answers
55 views

How to identify dead battery in Macbook pro 15" Mid 2010?

I have a Macbook Pro 15" Mid 2010 and I believe it has a dead battery. When I plug in the magsafe adapter it glows green, but the Macbook will not boot when I press the power button. When I press the ...
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1answer
670 views

Macbook Pro Retina Not Working on Battery, but fully charged and cycle count is low

I have an MBPR (15in) that is about 18 months old (no AppleCare). The battery has only 331 cycles on it, and Apple states it should last for 1000. The battery is fully charged, at 100%. If I remove ...
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1answer
28 views

Can I keep my MBPR unplugged when not in use?

If I shut down my MBPr and unplug the power cord every night then in the morning plug it back in and turn on the MacBook, will it have an effect on the battery charge cycles?
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0answers
40 views

How to determine USB device charge battery level?

I am trying to get battery state of Jawbone UP24 connected to USB. Using this command: system_profiler SPUSBDataType I got this result: MotionX Band: Product ID: 0x0002 Vendor ID: ...
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3answers
1k views

Why is my iPhone 5S overheating so much?

Activities such as: Phone Calls that last around 10 minutes 3G Browsing for 5 - 7 minutes Watching videos for 5 minutes Using apps such as facebook / instagram etc for 5 - 7 minutes, lead to my ...
2
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2answers
1k views

iPhone 6 charging best practices

Should I charge every night? (Assuming that I consume more than 50% during the day, but sometimes not much more.) Should I turn off the device during the charge? (Assuming that I don’t need the ...
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1answer
80 views

Macbook Air 13 inch (256 GB/ 8 GB/ i5) along with Windows (Using BootCamp)

I am completely new to the Mac and I am planning to buy MacAir (256 GB/ 8 GB/ i5) model and want to use Windows 7 along with it using BootCamp. I have no problem with MacOSX but need to use Windows ...
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5answers
2k views

Iphone 4S 8.1.1 Battery Problem

What else can I do to make my iPhone 4S work for as long as possible? I have done all the "standard" battery saving techniques recommended on most sites, like: turn off background app refresh, ...
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0answers
46 views

How to make iPhone turned on after charging

I often charge my iPhone when it ran out of battery. I often postponed charging my iPhone until it really run out of battery. After I charge my iPhone, I usually go to sleep or rest or forget about ...
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0answers
66 views

iPhone 3g battery drops from 60% to 0%

My friend gave me his old iphone 3G, which I've brought to an unlock-service so I can use it using my own simcard. It works, but sometimes the iPhone suddenly stops working while the battery still ...
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1answer
119 views

When the apple store replaces a battery in a 13in retina MacBook Pro, do they replace the top case and keyboard/trackpad assembly too?

I ask because I have a key missing and my keyboard and would like them both fixed at the same time.
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1answer
411 views

If we run out of battery and then charge iPhone, will it turn back on?

I just called by my lawyers 133 times for some very important message. My iPhone is just 3 meters in front of me being charged. Finally my lawyer come to my apartment and we both saw that the iPhone ...
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2answers
134 views

Iphone 3GS not charging

My IPhone was on 20% last night and I immediately plugged it in to the wall, it continuously kept connecting and disconnecting and at times giving "Charging is not supported with this accessory". ...