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

learn more… | top users | synonyms (1)

0
votes
0answers
7 views

Battery percentage issue

I just wanted to know the information about battery so I opened System Information window. Full Charge Capacity (mAh): 5714 Charge Remaining (mAh): 4343 So, by doing simple math it should be 76% ...
1
vote
0answers
8 views

Apple tv stopped working

I've recently bought apple tv for the bedroom and thought it was great.. at first. I only really use it for netflix, but now my remote doesn't seem to be working. I thought maybe that the battery ...
0
votes
0answers
13 views

Extreme rise in temperature MPB early 2011

Since my last upgrade on MBP 13" early 2011 : - 16 Gb RAM - SSD + HD - Software upgrade from Mountain Lion to El Capitan I have noticed an incredible rise in temperature from my computer. I know that ...
7
votes
2answers
4k views

What is this brown sticky residue in my MacBook Pro charge port?

I have just noticed a brown type of sticky residue in my charge port on my MacBook Pro, it wipes off but not completely and to me it smells like battery. Can anybody tell me if I have a problem here,...
0
votes
0answers
10 views

iphone 5s screen switches from apple logo to low battery sign

my phone is fully charged and a few days ago it would turn off so i would plug it in and just leave it plugged in and it would tun on after a few hours or so. when it would turn back on i would use it ...
0
votes
0answers
8 views

Battery Charging:: When to charge and when NOT to charge? [duplicate]

I got a new Macbook Pro, I live in Karachi, Pakistan where weather ranges from 20 -40 in summer season and 8 to 18 in winter. I want to know how can keep my battery in good shape? At what percentage ...
1
vote
1answer
1k views

Battery or power adapter problem?

I have a problem charging my battery. When I plug my power adapter into my MacBook Pro, the power adapter's light turns green (it doesn't change to orange) and my monitor light turns on (which means ...
3
votes
4answers
12k 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
21 views

Late 2013 Macbook Pro Retina 15" crashes after waking up from deep sleep

My MBP crashes after waking up from deep sleep. I also noticed it crashes when I take it off AC power, move to a different location, then hook it back up. I've done the NVRAM/PRAM and SMC resets and ...
0
votes
0answers
14 views

MacBook Air Wifi works better when plugged in?

I have a late 2013 MacBook Air, and I've noticed that my WiFi connectivity seems to work much better when the laptop is plugged in, or when the laptop is at full battery. I recently lost my WiFi due ...
0
votes
0answers
24 views

Is there a way to make a (non-jailbroken) iPhone look battery dead?

I am looking for a way to make my iPhone look 'battery dead' with no practical short-term means of bypassing. Is there a way to make it? Even hardware modifications or putting something into the ...
0
votes
1answer
25 views

How to make battery indicator show battery status instead of UPS battery on MacBook Air

I have a UPS system setup connected to my MacBook Air's dock at home. Whenever I look to check for the percentage of battery remaining on my MacBook Air (when not plugged in), it shows the percentage ...
0
votes
1answer
60 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 ...
0
votes
0answers
9 views

How to open and fix an iPod nano

I have an iPod nano (7th generation, mid 2015) which has been damaged by water. It will come on fine if I plug it into my computer and then eject it, but will lose power as soon as the cable is ...
0
votes
2answers
28 views

Magsafe's indicator light goes off, battery gets not charged further

Yesterday, all of a sudden, my macbook pro (15 inch early-2016) started to forget how to charge its battery. According to the battery icon, almost everything looks great but one thing. It doesn't ...
15
votes
8answers
240k views

Battery diagnostic tool at Apple Genius Bars

I have a one-year old iPhone 5 and it's battery performance has dramatically decreased over the last few months. As I could use my iPhone for over 24 hours a year ago, the lifespan has halved by now. ...
1
vote
1answer
26 views

Different Computer Modes for MBP

Is there a way to set different modes on my Macbook Pro. For example, I use my MBP for work, school and home. When I am at school I do not have my macbook plugged in to a charger and have to choosy as ...
0
votes
5answers
29k views

Why the iPhone doesn't automatically switch 3G off when connected to a wireless network?

This doesn't make any sense to me: why the iPhone doesn't automatically switch 3G off when connected to a wireless network? I always thought iPhone did that since the very beginning and my battery ...
3
votes
3answers
4k views

iPhone shuts off when battery is at about 20%

I have an iPhone 4S running iOS 8.0.2. For the past few days, my phone has been shutting off when the battery reaches around 20%. It will not turn back on until I plug it into a power source. When I ...
0
votes
0answers
4 views

Battery Usage Log

I would like to use the battery usage log to check on my kids iPod usage. Will apps show under battery usage if the iPod is plugged in? Am I able to immediately see what apps have used the battery or ...
3
votes
2answers
2k views

Why Safari is consuming so much battery?

From last 2-3 weeks I started noticing that my iPhone is consuming more battery than usual, around two to three times more. When I looked at battery consumption details I found out that Safari is ...
0
votes
1answer
45 views

Does Mac power adapter die if you leave it plugged in?

I have recently bought a MacBook Pro 15". A couple of days ago I had charged my MacBook and left the charger to the socket and it died. When I tried running diagnostics, it showed that power adapter ...
0
votes
3answers
762 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". ...
6
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 ...
0
votes
1answer
18 views

MBP battery won't charge

I have a MacBook Pro Early 2011 model A1278 which wasn't turning on, then I bought a new battery and it ran just fine. But the charger isn't charging it up (the charger is also fine, I tested in ...
0
votes
1answer
16 views

Will low power mode influence my facetime connectivity (speed and stability) or whatsapp messaging system?

Namely, I have an iPhone 5 with a very weak battery, and I will form now on probably hold it in low power mode at all times. I am wondering if whatsapp messages will take a beating from this, and also ...
0
votes
3answers
28 views

How should I store my rMBP for a month?

I am leaving for a vacation and leaving my rMBP. How should I store it except from shutting it down? How much charge should I leave in order not to lose too much capacity?
1
vote
1answer
23 views

iPhone auto-power-off after power disconnection

I have an old iPhone 4s that I use as a music player in the car. It is plugged into a cigar-lighter socket that is only powered when the ignition is on. The phone's battery life is not particularly ...
0
votes
2answers
28 views

My iPhone 5s shuts down when it has remaining battery

My iPhone 5s was shutting down automatically when it had 80% percent battery. Yesterday I restored it with iTunes and compatible firmware (6.1), now it shuts down at 73% battery. What is the problem ...
4
votes
2answers
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 ...
0
votes
0answers
248 views

My MacBook Pro dies randomly, does not start, and the Apple Store employees did not resolve the issue

I have a Late 2013, 13" MacBook Pro with Retina display. I haven't had any trouble with it until a few weeks ago, when the volume keys would randomly toggle without me touching them. That happened ...
0
votes
3answers
266 views

Does the iPad draw more current when charging?

I seem to be able to charge my iPhone 5 on a variety of USB chargers (car ones included). My iPad retina (iPad 4) seems to be very fussy about which chargers it will actually charge up on. (The ...
3
votes
1answer
2k views

Regular crashes on iPhone 4S/iOS 6.1.1: due to old battery, or because of updated-for-iOS-7 apps?

For the past 6 weeks, 2-3 times a week my two-year-old iPhone 4S (with no replacement parts) has crashed in the middle of use. I get a black screen with a spinner, and then it powers down. After ...
1
vote
0answers
67 views

13-inch Macbook Pro 2015 Battery Draining on standby/sleep

I've been using my Macbook Pro(13-inch Retina, early 2015) for past 10 months. Initially, it's battery did not used to drain at all during sleep/standby mode, but recently it has started to drain (by ...
1
vote
2answers
57 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
vote
0answers
49 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
42 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
votes
3answers
56 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
18 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
vote
1answer
71 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 ...
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 ...
4
votes
3answers
4k views

iPhone 4S/IOS6 - battery drain after the camera usage

I just discovered that my iPhone4S/IOS6 battery drains too fast after I use the camera. So: After the fresh restart the phone lasts 3 days - when not taking photos or videos. Even if I take one ...
1
vote
1answer
45 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 ...
12
votes
8answers
41k 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.
5
votes
2answers
628 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
1answer
53 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?
2
votes
3answers
7k views

Macbook Pro Mid-2010 15" is not charging with dim green light

I have spilled a bit of water on the keyboard of my Macbook Pro this Monday. It continued working just fine. So, I took it home, and 2h later, when I pluged the charger in, the light turned into a ...
0
votes
0answers
17 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
vote
1answer
74 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.
0
votes
0answers
25 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 ...