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 battery problem

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 will not turn on phone. I had to reinstall old battery. Any solutions?
4
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1answer
2k views

Macbook Pro Retina – “Battery Is Not Charging”

My Retina MacBook Pro is currently on 4% battery power, 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 ...
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2answers
40 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.
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1answer
30 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% ...
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1answer
60 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 ...
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2answers
52 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 ...
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0answers
27 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 ...
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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 ...
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3answers
9k views

Taking battery out of my MacBook Pro

Yesterday I bought my first Mac, the new Macbook Pro 13". Apple recommends not having the battery charged connected to the MacBook if the battery is 100%. In other laptops I had, I could just remove ...
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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 ...
3
votes
2answers
180 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 ...
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1answer
38 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 ...
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1answer
341 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 ...
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2answers
84 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 ...
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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 ...
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3answers
72 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 ...
2
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2answers
196 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 ...
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0answers
38 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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1answer
26 views

Can I use the battery from an early 2014 MacBook Air in a mid 2012 Air?

I just bought a used mid-2012 MacBook Air to replace the early-2014 model my dog killed but the battery life is terrible comparatively. Can I take the battery out of the 2014 and use it in the 2012 ...
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2answers
68 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 ...
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0answers
29 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 ...
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4answers
76 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 ...
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2answers
19 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 ...
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6answers
11k views

Macbook Air - battery drains while sleeping (but not when shut down)

My macbook air (13-inch, mid 2011) battery drains from ~100% to ~85% over night. The problem only started a few months ago. I'm currently running yosemite, but the problem started while on ...
5
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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 ...
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5answers
10k views

How to disable battery charging?

From the pmset man page: POWER SOURCE ARGUMENTS -g with a 'batt' or 'ps' argument will show the state of all attached power sources. […] Certain Apple battery calibration tools may ...
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0answers
21 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 ...
2
votes
2answers
47 views

MacBook Air 2012 won't charge or boot

I have a Mid 2012 11" MacBook Air that won't charge or boot. I've tested the charger with multiple other MacBook Airs, and the charger works fine. I have researched this and have done everything from ...
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2answers
36 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?
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5answers
29k views

MacBook Air Battery is not charging, no light, still be able to power up, battery condition is normal

I experienced this behavior two days ago (My MacBook Air is late 2011 version (4.2): I can still power up my Mac, with or without MacSafe charger connected Battery is not charging There is no light. ...
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votes
5answers
25k 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?
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2answers
52 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 ...
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1answer
623 views

My iPod 5th Gen won't turn on

I have an iPod Touch 5th gen and I use a cheap £1 charger to charge it up. Recently my iPod ran out of battery so I plugged it in using the charger and the iPod was completely unresponsive. I tried ...
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0answers
59 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
vote
1answer
71 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
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1answer
10 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 ...
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0answers
51 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
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1answer
25 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 ...
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2answers
553 views

Is it safe to install a third party high capacity battery into my iPhone 5S?

I stumbled upon this battery on Amazon and I was wondering if it'd be safe to install it into my iPhone 5S, assuming it's actually compatible.
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1answer
1k views

Receive notification when battery 100% charged

Is there any way to receive a iOS notification when you are charging your iPhone and the battery charge level gets to 100%? Or any third party app? Thanks.
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0answers
16 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 ...
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2answers
121 views

How to enable display on Dell monitor connected to MacBook Pro when not charging?

I've just purchased a Dell P2415Q monitor which I've connected up to my MacBook Pro (running OS X El Capitan). Everything works great in terms of the display, however I've noticed that it goes into ...
0
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1answer
70 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
44 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
43 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 ...
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4answers
9k 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 ...
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1answer
35 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 ...
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2answers
24 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?
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1answer
42 views

Test iPhone 4s hardware without battery. Possible?

So, I have this iPhone 4s, which was broken. So i replaced the screen. While I was replacing it, I accidentally broke the black wire that connects the battery to the motherboard. So I dont know if it ...