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

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1answer
7 views

Can I use a Early 2011 MacBook Pro 13“ charger with my Late 2013 MacBook Pro 13” with the MagSafe Adapter?

I bought a Early 2011 MacBook Pro 13" but eventually upgraded to a newer Retina Late 2013 13" model. I'd like to get another charger, but I'm curious if I could use the old charger that came with ...
0
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1answer
21 views

iPod less than 1 year old battery life

My less than 1 year old iPod touch (A1421) lasts about 8 hours with no use other than listening to podcasts. Is this level low enough to justify an in-warranty battery replacement? If so, do I ...
0
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1answer
28 views

Brand New Macbook Pro 15" Battery

I just bought a brand new 15" Macbook Pro (mid 2014) and it came with already 2 battery cycle counts, is that normal?
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1answer
14 views

iPad plugged to charger turns off due to low battery

My iPad is connected to charger yet battery level decreases (not as fast as plugged off but still). Is it a fault that can be directed to Apple Support for warranty or normal behaviour? I though that ...
0
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1answer
39 views

Is there a way to find out information on battery through macbook serial number?

i bought my MBP Retina display 13"(late 2013) 5 months ago; a week ago i had to change its battery at an authorised reseller when my small sister accidentally dropped a whole glass of water on it. i ...
2
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2answers
57 views

Is it harmful for the battery to use a 60 W instead of 45 W charger?

So, my dog bit through my MacBook Air charger and i just ordered one online without really knowing what all the specs meant. Now my question, does it hurt my battery to use a charger with a higher ...
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1answer
28 views

How to prolong battery life

I have recently brought my self a MacBook Pro (2015) battery life because I was getting 4 hours or less on my MacBook Air (2010) that had about 800-880 cycle counts. Because of the battery issue with ...
40
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7answers
13k views

Is charging iPhone all night harmful to my iPhone?

I normally charge my iPhone all night to get 100% power, does this charging way harm my phone? Or, specifically, phone battery?
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1answer
27 views

What does an Apple “battery service” involve?

I've got a mid-2012 13 inch MacBook Air that I've owned since new. Quite soon after I bought it, the drop-down menu that appears when I click the battery icon in the menu bar included the item ...
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1answer
21 views

Power adapter green light blinking on - non genuine adapter

I recently acquired a new power adapter 85W for my macbook pro retina late 2013. I made sure the specifications matched the official Apple adapter and in fact I have not noticed any performance ...
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0answers
32 views

New MacbookPro 13 Retina MID2014, temperature issues

Bought this Mac two weeks ago, and I used to have a MacbookAir. I believe in my MacbookAir the battery temperature usually stayed around 30 Celsius while using it, even heavily. With my new Macbook ...
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0answers
28 views

Can I replace the Macbook wall wart with any appropriately spec'd DC source? [migrated]

The inefficiency of doing a 12V -> 110V -> 20V conversion to charge my Macbook from a 12V battery is depressing, so I'm considering severing a charger connector (the part with the charging light) and ...
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2answers
40 views

What does (10 hours)² mean? (specifications)

I was looking at the specifications of the MacBooks (pro) on Apples website and I saw this. Built-in battery (10 hours)². What does the '²' mean? Why (10 hours)² and not 10 hours?
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1answer
36 views

IPad Battery replacement criteria under warranty, no applecare

does the complimentary one year warranty cover replacement of batteries that go below 50% of original capacity? What is 50%...? Like how fast does it have to drain? Is there a way to measure without ...
0
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1answer
32 views

Difference between Express and Standard Replacement Service for iPad battery

Can a user use Express Replacement Service to get a new battery if still under warranty? How's that different than Battery Replacement Service again under warranty?
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2answers
24 views

Unused iPhone 5 not restarting

I powered off my old iPhone 5 after getting the iPhone 6 six months ago. Today, I tried to turn it on and the iPhone will not start.
0
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1answer
120 views

MacBook Pro battery percentage jumping down and up

Recently, my 2011 MacBook Pro 13' produces strange instantaneous jumps in battery percentage. Sometimes, when it is discharging, it drops by ~40% (and if it was near or at less then 40%, it shuts down ...
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2answers
100 views

Can I run my MacBook Pro on just AC power?

I have a used little MacBook Pro 13 inch Late 2008 5,1 and I was told it needed a battery. It charges, then it doesn't, and it shuts off at the most random times, so the thought occurred to me to take ...
2
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4answers
49 views

No Battery Available

I have a MacBook Pro 15", early 2011. Earlier this week, I brought it home and plugged it in, and there was an X through the battery. Did an SMC reset, and it started charging again. The next day it ...
0
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1answer
58 views

What must I check after I got my new refurbished MacBook Pro 13"?

My friend wants to buy new refurbished MacBoook Pro 13" mid 2014 MGX72 in Malaysia. He's afraid of defects. So he needs advice on how to check whether it has problem or not. If it has, he must report ...
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0answers
18 views

Incoming call is not registered on iPhone if iPhone turns of before I pick up

The situation: iPhone is low on battery I receive incoming call I try to pick up and phone turns of during that moment In this situation incoming phone number is not registered on the recent call ...
0
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0answers
24 views

MacBook Pro 10.6.8 mid-2011 and HP Compaq LA2205wg working only when MBP on battery

Weird behavior of MBP and external HP screen. When MBP is on battery - everything works perfect. But when power supply is connected to MBP - external HP screen is going black. "Monitor going to sleep" ...
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2answers
33 views

Booting up gets hung up at around 50%

I have a 2008-era 15-inch MacBook Pro, with Yosemite on it. The battery recently failed and, using only the power adapter, with the battery removed, the status bar gets stuck at 50%. Is it only a ...
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0answers
40 views

My Macbook Pro says I'm connected to a power source even when unplugged

I have a Macbook Pro mid-2010 (Macbook 7,1) that is acting a bit weird. The battery status always says I'm connected to a power source even when the charger is unplugged. The battery still discharges, ...
2
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0answers
33 views

App to allow battery charge only to a certain extent

I'd like to charge my rMBP battery only up to 85% or 90%, in order to preserve it. Is there any app that stops charging at user selected percentages? If not, is there any other method? (Apart from ...
0
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0answers
34 views

MacBook Air Mid 2011 battery not charging

My battery will not charge. The ac is connected and it is a new. The green light is on. I have tried the reset. Any Help? Here is the stats:Battery Information: Model Information: Serial Number: ...
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1answer
38 views

Mac OS X - report time on battery since last AC unplug but exclude sleep time

Is there an app or existing command to report the battery time since the laptop was last unplugged from AC but exlude the time spend during sleep on battery? This can be inferred from pmset -g log so ...
1
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1answer
24 views

How can I keep my MBP's battery from charging without removing it?

My battery has expanded and has to be replaced, but I am currently writing my thesis and intend to only keep using my MBP for a few more weeks before I buy a new one. I have heard that it is dangerous ...
0
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2answers
41 views

how to turn on empty iPad while loading?

How do I turn on an iPad (first revision) during it is loading. Or how do I turn it on at all? When I plug it in, the display shows a battery symbol with a little bit of red juice on the left side ...
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0answers
80 views

Resetting SMC on a Macbook Pro

About a couple of weeks ago, I tried turning on my Macbook Pro and it seemed completely dead. I plugged in the power cable but it still didn't work. Since it's not under warranty anymore, I opened up ...
0
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2answers
66 views

Accessing Apple Hardware Tool on MacBook Air 2010 running Yosemite

I charged my MacBook Air (Late 2010) up to 100% charge overnight however my battery died within 1 hour. Because of this I want to use the Apple Hardware Tool (AHT) to diagnose the issue. My Mac is 4 ...
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0answers
41 views

1.7 GHz Intel Core i5 10.7 Macbook Air Water Damage… still works… Battery issue

While on a flight in June 2014, the guy next to me put his drink in the gap between the tray and his cup spilled liquid below including on my macbook air which was in the pouch. Unsure of whether ...
2
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0answers
180 views

iPhone 4S 64GB not charging unless switched off

My iPhone is simply not charging unless I switch it off while it is already plugged in. I suspect it to be a software problem, as when its off it charges. Windows does not seem to recognize the device ...
0
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1answer
29 views

MacBook shows it is charging when MagSafe is green

My MacBook currently shows this even though the MagSafe charger has a green light. Does anyone know why this is? If it helps I am on a MacBook Air late 2010 with 819 cycle counts, 4,995mAh ...
0
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0answers
50 views

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 ...
1
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1answer
104 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 ...
1
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0answers
108 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 ...
0
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1answer
207 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 ...
2
votes
1answer
1k 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 ...
2
votes
5answers
385 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 ...
1
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2answers
35 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.
2
votes
1answer
46 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 ...
0
votes
2answers
41 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 ...
1
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3answers
237 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
194 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 ...
2
votes
1answer
31 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
70 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 ...
7
votes
3answers
796 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 ...
1
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1answer
41 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 ...
2
votes
0answers
42 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 ...