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

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3
votes
2answers
15k views

How do i get the low battery warning back on my MacBook?

I have a MacBook and I did not take care of the battery properly. It started to shut down unexpectedly at around 20% and then even at 30%. I got a new battery and it seems to work fine; it lets me get ...
3
votes
2answers
61 views

Is it normal for a MacBook Pro battery to regenerate itself?

Let me first give a quick background. I got the 2015 MBP 15" with Retina display second hand like a week ago. As every normal person who just switched from Windows to Mac I was doing this and that and ...
1
vote
1answer
23 views

Using iPhone as modem - battery damage

I am using my iPhone as a modem, transfrerring a lot of data(4G) over long periods of time (awesome provider plan with lots of internet), connecting it to my laptop with the usb cable. I searched the ...
0
votes
1answer
15 views

Replaced iPhone 4S batteries, won't boot, won't recover (even in DFU), iTunes says “Waiting for iPhone”

I've tried multiple machines, multiple iTunes versions, multiple cables, and ports. My phone was originally rebooting randomly. Thinking it was an electrical short problem, I put in a new battery. ...
0
votes
1answer
14 views

Should I change my MBP 13" early 2014 battery

I recently checked my battery cycles count: 942, this is very close to the limit 1000 as indicated by Apple https://support.apple.com/en-us/HT201585 If it becomes 1000 do I have to replace it by ...
0
votes
2answers
20 views

Battery not charging? (Even after SMC reset)

So, I've seen a couple topics like this that already exist, but none solved my problem. I plug in my charge to my 13-Inch MacBook Air, Early 2015, and the LED light did not turn on, and the battery ...
0
votes
2answers
41 views

If I don't plan to use my MacBook Pro

I wanted to ask, let's say I plan not to use my rMBP for a few days (5-7), is there anything special I should do in order to keep the battery in good condition? Thanks
1
vote
3answers
3k views

MacBook shut down at 20% battery with no warning?

My 2013 13" MacBook Retina (OS X 10.10.3, Yosemite) shuts down when I have about 20 minutes of battery left. Not sleep, full shut down. It does this with no warning at all. I seem to remember ...
0
votes
0answers
13 views

iPod Shuffle (4th Gen) is in a coma

The iPod lights up when connected to a power source but it doesn't turn on. Here are my observations: It syncs perfectly with iTunes, with the yellow light flashing and all. The yellow light is ...
11
votes
7answers
32k 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.
0
votes
0answers
25 views

2011 Macbook Pro won't boot unless I SMC reset and do a combination of attaching battery and charger

From what I read, on this model of MacBook, an SMC reset is done by removing the battery and holding the power button down for 5 seconds with no charger or battery attached. I tried the other method ...
7
votes
2answers
13k views

How can I preserve the battery cycles on my MacBook Air?

I recently got my MacBook Air, and the battery cycles is already at 12. Is this good/average? I don't know if I am not charging it properly or something, because I don't want to ruin my battery in the ...
5
votes
2answers
2k 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 ...
2
votes
4answers
11k views

My MacBook Pro is not sleeping when I close the lid on battery

I purchased my macbook back in 2011, and this problem just started. When I unplug and close my computer to put it in my backpack for school, it does not sleep. I take it out and its very hot and has ...
0
votes
0answers
25 views

iphone 6 crashes and needs plugging into charger to restart

The phone repeatedly crashes as if the battery is out of power and wont restart unless I attach it to the charger. When it restarts it indicates that it is over 90% charged already. I've re-set the ...
1
vote
2answers
111 views

My battery icon has x in it

My MacBook Pro 15" battery has a black X in the battery icon and the indicator lights on the side do not light up when button is pressed. What could be the problem? It runs fine when plugged in
5
votes
1answer
230 views

How to check the battery level of devices connected via Bluetooth in OS X

I have a set of Bluetooth headphones that I use with my iPhone and Macbook (OS X Yosemite). On my iPhone, a little battery meter pops up next to the Bluetooth logo each time I'm connect the ...
0
votes
0answers
8 views

MacBook Air Battery Not Recognised

From time to time, my late 2010 11" MacBook Air stops recognising its battery. It behaves in every way as if the battery had been removed. Resetting the SMC and PRAM makes no difference; I have to ...
0
votes
1answer
42 views

How “safe” is my laptop running on Service Battery

I've had my Mac for over 3 years and I've been good about checking the battery's condition, which was always Normal, but all of a sudden the dreaded Service Battery suddenly showed up. This was not ...
0
votes
1answer
36 views

Where does iPhone store information about current battery percentage?

I wonder how is it exactly with the calculation of the battery percentage: from 100% down the software calculates which resources were used and for how long and thus it approximates the current ...
0
votes
1answer
63 views

Macbook battery information (cold weather & plugged in usage)

I kinda have two questions but they're both battery related so I just made one post. 1) Does it harm the battery if I cary my MacBook around with me and the weather is really cold? This has been a ...
1
vote
0answers
49 views

How to diagnose the cause of accelerated power drain in iPhone 5s / 6s?

I recently upgraded from an iPhone 5s to a 6s. Most days my phone battery lasts the entire seven hour work day easily (my 6s typically lasts about two days). But now and again with the 5s I would ...
0
votes
0answers
12 views

What is a possible non-jailbreak way to trick an iPhone into thinking it is being charged even though nothing is plugged in?

Does anybody know a trick to make an iPhone 5 make that charging sound and have that green battery icon appear, but not actually charge or have anything plugged in? I need it as a demonstration for a ...
1
vote
1answer
11k views

What prevents an iPad or iPod charger from overcharging?

my iPad mini came with this charger and cable. If i leave it charging overnight, what prevents it from overcharging my iPad(is it the charger or the iPad itself)? I ask because I also own a Dynex ...
7
votes
4answers
4k 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 ...
0
votes
1answer
11 views

Is there a USB brick / portable battery that will work with the MacBook (2015+, USB-C) and regular USB?

?I have the early 2015 MacBook with USB-C charger. I want to have one brick for that AND my iPhone. I also bought a USB-A to USB-C cable, but I can't find a USB-A brick with enough power to charge my ...
0
votes
2answers
26 views

charging my Macbook Pro (85w) with my Macbook Air (45w) charger

seeing if anyone as done this. Has any used a 45w charger (like the one that comes with the Air) to charge their Macbook Pro? I left my Pro charger at a friends house and will not be able to get it ...
0
votes
0answers
4 views

Pismo G4 (upgraded) laptop

Pismo with G4 upgrade. I have an old that I use for music. Connects with music files to keyboard and Logitech 5500. Suddenly, It won't start at all. I took the battery out and an external charger ...
0
votes
0answers
17 views

Macbook will say it's charging, but it's not

I have a Macbook Pro 13" i7 Early 2011 (MacbookPro8,1). It's on its second battery (DP bq20z451 manufactured Dec 2012) from March 2015. It was working fine for a while, but in the last month it's ...
3
votes
1answer
1k views

Macbook Pro Retina “Battery Is Not Charging”

My retina macbook pro is currently on 4% but when I plug it in the battery icon up the top shows the plug icon instead of the lightning bolt icon inside it to say it's charging and stays on the same ...
0
votes
2answers
26 views

Can having a MBP constantly charging damage the battery?

I constantly have my MBP connected to its charger. I was curious though, can this affect the battery? If the battery is always at 100% and power is constantly being fed into it, does this damage the ...
0
votes
0answers
10 views

Start up normally after low battery hibernate (instead of reloading application state)

Sometimes when I start up my macbook pro after it hibernates due to low battery, I want it to just start up normally and forget the previous state that was written to disk. The only way I've figured ...
4
votes
1answer
2k views

iPhone: What is `accountsd` and why is it using 80% CPU?

I just got a new iPhone 6 for my SO and noticed that it is quite toasty to handle with the battery draining quite fast. It has been 24 hours since I first set it up. I plugged it into Instruments ...
2
votes
1answer
40 views

What can be with the battery?

My MacBook Pro (13-inch, mid 2010, El Capitan) periodically turns off. And this is happening completely randomly - sometimes it works fine for more than a day, and sometimes turns itself off 10 times ...
0
votes
0answers
29 views

Is it possible to tell the charge of the Apple TV Siri Remote from OS X?

My Apple TV Siri remote just dropped below 20% battery charge so I thought I would charge it in my Mac. How do I know when it is done charging? Is there some OS X command or utility for checking the ...
0
votes
1answer
36 views

Does anyone use Xcode Playgrounds on a Macbook 2015? [closed]

I'm interested in the MacBook 2015 form factor and wondered if anyone uses Xcode Playgrounds on one and how it handles it in terms of responsiveness, battery drain and screen size. I realise that ...
41
votes
10answers
73k views

Can I use 45/60/85W MacBook chargers interchangeably?

I have a 13" Macbook Pro that came with a 60W power adapter and a 15" Macbook Pro that came with a 85W power adapter. Can I use either adapter with either laptop? There seems to be disagreement in the ...
0
votes
0answers
11 views

13" mid 2007 Macbook, battery / power supply issue (white, A1181 model)

So, I have mistreated my macbook somewhat and would like to repair the damage. The problem is, there is "no battery supply", the icon at the top bar is a battery with a cross through it. There are ...
4
votes
4answers
6k views

Is there a shortcut for activating Low Power Mode in iOS 9?

I don't use my iPhone with a mobile data plan and I don't care if the polling frequency for background apps gets lowered a bit. Is there an easier/faster way to activate the Low Power Mode than using ...
0
votes
1answer
29 views

Battery life of iPhone 4 reduced dramatically since iOS 7

Since I updated my iPhone 4 to iOS 7 (11A465), the battery began to drain really quickly, though the Bluetooth, GPS and the LTE are closed most of the time. It makes me wonder whether there are ...
0
votes
2answers
50 views

2011 13" Macbook Pro shows a green charging light but battery was draining and now it won't respond to SMC Reset

I was using my Macbook Pro and I was letting it discharge to about 30%; then I plugged it back in to charge. It charged for a while (orange light) but after a few minutes, it changed to green. My ...
1
vote
0answers
15 views

Macbook Air 11" mid 2013 keyboard backlight doesn't work

I've bought a Macbook Air mid 2013 trough a secondhand website. After test it all I told the man that I'm interested. So I payed. Once at home, I realize the keyboard backlight doesn't work. I've ...
0
votes
1answer
1k views

Testing an iPhone 5C without a battery or screen

I have a previously broken iPhone 5c that I removed the offending parts from. The screen was shattered beyond repair, and the battery was in pretty bad condition. I'm planning to buy some new parts ...
-1
votes
1answer
76 views

iPhone connected to charger and shows charging but not charging battery

Last night I charged up my iPhone 5c and this morning I woke up and it was on 1 percent. After this, I checked that the iPhone's charger was plugged in properly and it looked fine. I turned on my ...
3
votes
1answer
87 views

My iPad has a Bad battery-is that possible?

I had my iPad on airplane mode while traveling across country. I went to turn it on and got a extremely low battery icon. Plugged it in to wall all day and then found it to be warm and damp inside ...
8
votes
5answers
23k views

Does overcharging a MacBook degrade its life?

I have an early 2011 13" MacBook Pro and I use it almost like a desktop. I leave the power cord connected all the time. Is this OK? Am I ruining the computer or diminishing its lifespan?
2
votes
4answers
531 views

What's the battery life of the new iPad 4G with LTE disabled/enabled?

I saw a video about the new iPad and it showed that you could disable LTE. Apple had to increase the battery capacity in the new iPac because upgrades like LTE and the new display draw ...
3
votes
0answers
70 views

Is it possible to disable CPU throttling on a MacBook Pro with a completely dead (not recognized) battery?

I have a MBP late 2011 running El Capitan, recently my battery died (x over the icon and "no battery available" in the dropdown.) I've noticed since then that CPU intensive tasks are very slow, and I ...
2
votes
2answers
19k views

Anyone knows how many mAh in iPod Touch 4th generation battery?

Does anyone know how many mAh does the iPod Touch 4th generation battery have? Seems like Apple doesn't provide this particular info.
15
votes
1answer
1k views

I don't ever use Siri, but it's using too much battery

I never use Siri, but when I look what has been draining my battery it says it's Siri!