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

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2answers
19 views

My MacBook Air won't charge correctly : the light is green instead of orange

I have a 2009 MacBook Air (MacBookAir2,1) I have a compatible MagSafe and a Apple one. Sometimes (almost most of the time), when the computer is running and not in sleep, if I plug the MagSafe, it ...
1
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0answers
16 views

MacBook Pro won't turn on!

I was using my Macbook Pro when it turned off. The things I had plugged in at the time were a USB cable to a sound blaster thing and then into some speakers. I also had a second monitor attached, ...
0
votes
0answers
21 views

iPhone 4S on iOS 9.3.2 turned off, won't start and doesn't respond when plugged in

My iPhone was almost fully charged, 90% when all of a sudden it turned off on it's own, and it won't start. I tried a hard reset, plugging it into a power outlet and into a laptop with iTunes, I've ...
0
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3answers
21 views

MacBook Pro turned off and won't turn on!

I was just using my laptop normally when suddenly the whole computer just shut down. I turned it back on straight away and it was fine. Another hour passed and it did the same thing. I could also turn ...
1
vote
1answer
14 views

MacBook Pro stop charging at 99%

Most of the time my MacBook Pro stop charging at 99%. But when I check the battery status it says battery is charged. My battery cycles is around 500. Does it means I needs a new battery or it is ...
1
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1answer
58 views

MacBook Pro 2015 lost battery capacity

I have used my new MacBook Pro Retina for a few days. After three battery cycles, the battery lost capacity from 6960 mAh originally to 6616 mAh now. Is it normal to lose almost 350 mAh of capacity ...
1
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1answer
36 views

Macbook Pro weight increased after battery replacement

After my battery died I have replaced it in Authorized Service Provider. This costs nearly 140$. However after replacement I noticed that the weight of my Macbook Pro Retina (Mid 2014) has been ...
0
votes
1answer
25 views

Will my 14.5V USB-C charger destroy my 9.7 inch iPad Pro?

The charger is the one for the MacBook (29W) and the iPad is the 9.7 inch Pro. Can they be used together without damaging the iPad battery?
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0answers
11 views

Late 2014 Macbook battery will not hold charge; US model used in Germany with converter

My sister has a Macbook Pro (13", Late 2014 model), purchased around Christmas 2014 (~18 months ago), which has stopped holding a charge. She can run the macbook fine off of the cord, but it ...
1
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1answer
36 views

How to schedule airplane mode?

I want to schedule Airplane Mode during the night (10PM–6AM) on my iPhone. How can I do that? I used to turn off my previous phone (a non-smartphone). I do that especially to save some battery life.
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0answers
22 views

Iphone 5c acknowledges that its plugged in but wont charge after replacing charging dock

I hope that it is just a cable that is not plugged in properly and i wont have to take it apart again, but i removed the old charging dock that includes the microphone, headphone jack and the usb ...
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0answers
21 views

MacBook Air 2009 using too much battery during sleep - Too old?

I have just bought a MacBook Air Mid 2009 and i'm surprised about the speed it uses battery during sleep. Here are the technical features : MacBook Air 13" Mid 2009 (MacBookAir2,1) Mountain Lion ...
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0answers
12 views

How to benchmark iPod mini battery running time / Good iPod mini replacement batteries?

I've got a used 2nd gen iPod mini that I'm planning on retrofitting by upgrading it to flash storage. I got it at a good price and since the thing's 10 years old, its battery probably isn't as good as ...
0
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0answers
48 views

OSX10.11: Completely Disable Spotlight

Spotlight is driving me crazy. It has a constant CPU usage of 100-200% making my laptop run hot and reducing my battery life to half of what it used to be. This is my development machine and I can ...
1
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0answers
33 views

Installed new SSD now when my mac dies to freezes on restart

I've installed a new SSD not an OEM, but it's a compatible fit to my early macbook pro 2015 with retina 13". When my battery dies it doesnt hibernate my mac, so when I restart it, it freezes and then ...
9
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1answer
1k views

How does Coconut Battery determine a Macbook battery's design capacity?

A macbook's battery has three charge numbers: The current charge The maximum charge The design capacity Even if a Macbook remains plugged in, OS X does not attempt to charge—as long as (1) is 95% ...
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1answer
25 views

How do I assess how “normal” my battery is?

OS X assesses my battery as "normal" under System Information > Power. I understand that at some point this is going to change to some kind of "we recommend you replace the battery" message. I am ...
0
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1answer
34 views

MacBook Pro 13" (late 2011) gets extremely hot during normal usage

I'm using a 13" (late 2011) MacBook Pro and it has been getting so hot that I cannot use it on my lap, even when barely any applications are running. I have checked Activity Monitor and there are no ...
0
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1answer
26 views

iPhone won't boot after installing higher capacity battery

I wanted to upgrade my iPhone 5 to a higher capacity 2680mAh battery, but when I installed it the Apple flashes on and off and the phone will not turn on. I had to reinstall the old battery. Any ...
0
votes
2answers
43 views

Will grayscale consume or reduce battery usage?

So I was wondering, if I turn on grayscale, will it consume or reduce battery usage? I want to know because if my phone battery is low I want to keep it running as long as possible.
0
votes
1answer
65 views

Why does my iPhone power off when the battery is down to 30%?

Today I was walking using my iPhone 6S running iOS 9.3 as a pedometer and it shutdown. When I got home and plugged it in, it said 30% capacity. That seems strange. I would expect it for 2% or 5% ...
0
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0answers
39 views

How do I identify a good quality replacement battery for an iPhone?

My iPhone 4s battery was dying, so I replaced it (the battery). But the replacement battery (which was a cheap one from eBay) is pretty poor. The replacement battery looked exactly like the original ...
0
votes
1answer
52 views

Why does iPad run out of batteries while it's plugged in?

I'm playing Vain Glory with my iPad Pro plugged into the 12W adapter via the supplied Lightning cable. Screen goes black, battery dead. Takes a few minutes to come back on. Why on earth did the ...
3
votes
1answer
362 views

Battery Life While Using External Monitor on rMBP is Less

I have a Retina Macbook Pro 2014, in clamshell mode attached to a full HD monitor. I see that battery lasts much less when connected to an external monitor. Is there any explanation to why this ...
0
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0answers
11 views

MacBook Pro charging tip [duplicate]

I'm about to buy a Mac Book Pro Retina, I'm going to use it mostly at home and when needed I'll take it to my workplace, and so forth. I know it does not have a removable battery, so I'm wondering ...
0
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3answers
117 views

Does charging my early 2015 MacBook Pro all the time damage the battery? [duplicate]

I am using my early 2015 MacBook Pro as a desktop by connecting it to an external display, thus, it needs to be plugged in to a charger all the time. Does charging my early 2015 MacBook Pro all the ...
0
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0answers
52 views

My iPhone Won't Charge!

I have an iPhone 6 and I've been using it for around 6 months now. It has never ever fell on the ground or in water so I don't understand. My problem is, my iPhone just won't charge. Here are the ...
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2answers
153 views

Low Battery Alert for Mac OS X El Capitan

I have Macbook Air, Mac OS X El Capitan. There is no warning box shown before the battery is near %15, like it did for Mountain Lion. So I can not notice and my computer goes sleep simply when the ...
0
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0answers
35 views

Two iPhone users update their devices to the newest iOS version and have their phones fried

Hello Apple Stack Exchange Community! I run a local computer and phone repair shop, and I've run into something I haven't seen before. Two of my past clients, both who take meticulous care of their ...
0
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2answers
27 views

How to disable “turn off display after” when using Apple TV?

I have my Energy Saver->Battery->'Turn display off after:" set to 2 minutes. This setting is exactly how I want power settings to behave when I'm using the computer on my lap. However, when I hook up ...
2
votes
4answers
86 views

Does force closing apps have any benefit on iOS devices?

I've gotten mixed answers from various websites and people concerning this question, and I wanted to put it out there for all of you to answer once and for all. The question is, does force closing ...
2
votes
2answers
250 views

Running Ubuntu on MacBook Pro 2015 — run natively (dual boot) or run in virtual machine for longer battery life?

I currently use Ubuntu in a virtual machine, using VirtualBox software on my host operating system, OS X, on my MacBook Pro 2015. However, the battery life drains quickly when Ubuntu is used ...
0
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0answers
25 views

How much difference is made on battery life when keeping mobile data switched on along with WiFi?

What if I turn on Mobile Data whole day along with WiFi? In this way, How much more battery is going to be used up? I have WiFi connection at my home.. But sometimes it stops working.. And it's ...
0
votes
2answers
37 views

Fine to keep macbook on power for unlimited time? [duplicate]

I just got a used Macbook Pro (retina) 2012 running El Capitan. I am keeping it charged and on all the time. Is there any harmful effect from doing so on the battery in the long term?
2
votes
2answers
90 views

Mid 2012 MBP shuts down claiming no power with charge at 30% or 40% or more

I have two mid 2012 MBPs. Sometime last year they both started randomly shutting down and showing the 'please plug me in to power' image when trying to start them up. That would be fine if the batter ...
1
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2answers
63 views

Debugging charging problem with MacBook Pro

I have a MacBook Pro (unibody late 2008 15") A few weeks ago the charger was causing hassle and eventually the connector came loose. The MacBook eventually lost power. Then, I asked my friend for ...
3
votes
2answers
281 views

Extreme energy usage by Spotlight

I recently (two days ago) updated to El Capitan on my work machine (15" MBP, Mid 2015, 2.5 GHz Core i7, 16GB ram, R9 M370X, 500GB SSD) and ever since then, Spotlight has been draining my battery and ...
0
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0answers
89 views

iPhone Outlook app still fetches mail when in Low Power Mode, while the default Mail app doesn't

I'm trying to compare the default Mail app that comes with iOS and Microsoft's Outlook for iOS. The use case I'm particularly interested in is when the Low Power Mode is enabled. From what I ...
1
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2answers
62 views

Any way to turn on the reduced power mode a macbook uses under battery power, but while plugged into a power adapter?

I have an external battery rigged up for my MBP. It goes through the magsafe adapter. The battery is about twice the capacity of the internal battery. The problem is, the macbook thinks it is ...
0
votes
1answer
14 views

Magic Mouse Battery Plug In

I'm new to mac and everything around, I just want to know if I can code a sort of plug-in to show the batterie of the magic mouse, in the menu bar. What is the type of template i have to choose in ...
1
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1answer
73 views

Do Sophos and Spotlight conflict and if so, how can I run both applications without problems?

I just got a brand new 13" MacBook Pro at work. I have noticed that Spotlight has been running constantly giving me ~4 hours of battery life. The motivation for getting this laptop was to have the ...
0
votes
1answer
29 views

Will Apple service secondhand iPad still under warranty?

I bought an iPad on eBay a few weeks ago. It's still covered under the original Apple warranty. There's a clear problem with the battery. Will the Genius Bar staff look at and service this device if I'...
1
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0answers
55 views

Why a sudden increase in CPU when battery low?

My Macbook Pro (Retina 13" late 2013, OSX 10.10.5) has fine battery life overall - this is not the problem. However, when the battery drops below about 8%, and before I normally get any "your ...
0
votes
0answers
18 views

iPhone turns itself off on startup

So lately I have got my first iPhone 4S and I have had turned it on for two days straight on a start-up screen as I didn't set it up yet (no time), however it turned itself off while having around 80 -...
0
votes
1answer
74 views

iPhone 5s Battery

Ok here's the breakdown: I just bought an iPhone 5s from a girl on the Internet. It wasn't in perfect condition but nothing was wrong to make it not run good. I was only on the phone for about 20 ...
0
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2answers
55 views

At how many battery cycles should I consider replacing my battery?

My battery has become quite a pain in the neck recently, It's not lasting much more than about 2 or 3 hours and that's usually just using basic programs like chrome or pages etc. It's difficult for me ...
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0answers
11 views

iMac retina 27 inch and OS1o.11.4

In System Preferences, the battery level indicator for "keyboard" (bluetooth) seems to be stuck on 100%. It never goes down. But the indicators l for both the Apple mouse and the Apple track pad do ...
0
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1answer
58 views

3180mAh battery for iPhone 5, is it safe to install?

My battery is very weak in my iPhone 5, and I want stronger battery. I can buy double the size, around 2880mAh, but I want even stronger and I found one on eBay, battery for iPhone 5 with 3180mAh. Is ...
0
votes
1answer
38 views

Macbook Air 13" 2014 battery drain

Okay well so this Macbook i have isn't giving me a full time its rather dying our very fast!! even after i don't know resetting the smc and the nvram and i have no idea whats going help its really ...
1
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2answers
28 views

MacBook Pro mid 2009 reports “Service Battery” but works ok

I get a message saying "Service Battery", but it continues working ok. How do I service the battery?