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
1answer
14 views

iPhone battery life continually worsening

I purchased my iPhone 4S on November 8th, 2013, now the iPhone first started having problems in summer, maybe in July. The phone first died at 15%, eventually the problem got even worse. The phone ...
3
votes
4answers
2k views

What is the relevance of “Low Signal” in battery usage stats?

iOS 8 shows "Low Signal" in the battery usage stats, like here: How great is the effect of signal quality on battery life? In other words, if the signal quality was better, would the stats be more ...
0
votes
0answers
6 views

Battery mechanism not working on Macbook

I have a late 2008 Macbook. The mechanism for opening battery part has ceased to work. I want to put new memory in the computer. Is there anyone that could advise on how I get battery out without ...
1
vote
1answer
11 views

really bad power consumption on mid-2013 MacBook Air

I'm getting a really bad power consumption on my mid-2013 MacBook Air 11" w/ OS X 10.9.4. I think the issue is that I have too many tabs open in Safari and SeaMonkey, and they're all taking a lot of ...
0
votes
0answers
10 views

Mavericks: pmset ChargeInhibit

I'm running Mavericks on a mid-2012 Macbook Pro. I read that in Mac OS X 10.6 pmset could be used to prevent the battery from charging. I've been using my Mac with AC power a lot lately and I thought ...
3
votes
3answers
4k views

iPhone battery life is awful even after replacing it

I have an iPhone 3gs 32gb. As they do, my battery was noticeably depleting as well as conflicted with the device having been slightly water damaged (dropped in quickly but immediately turned off and ...
0
votes
0answers
23 views

macbook air won't charge [closed]

first of all sorry or my english. So i first had a mac book pro that didn't want to charge, i had to put a little box under the charger so that it moved the charger only then it would charge. i sold ...
0
votes
2answers
1k views

Can an iPhone be force started before the 15 minute recharge period?

There are times when the iPhone is at low battery level that it turns itself off. Sometimes, it maybe when I am going to charge it but looking for where my cable is, it turned itself off. So I ...
2
votes
2answers
93 views

iPhone 4S iOS 8.0.2 Shuts off when battery is at about 20%

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 plug it in, it automatically powers ...
1
vote
1answer
23 views

Does Macbook Air (mid 2013) bypass battery after it's charged?

I have a MBA mid 2013. I was wondering if a MBA is plugged in charge, does it bypass battery after it's fully charged? Because while I am working it's always plugged, I wonder how this will affect ...
1
vote
0answers
373 views

iPhone heat and battery drain

In december 2013 I bought an iPhone 5s. A couple of weeks ago I restored my iPhone to 7.1.1 using a back-up on my Mac. Since then, the battery drains very quickly and the devices heats up most of the ...
3
votes
1answer
4k views

Does Battery Usage/Percentage need to be calibrated again?

I recently installed iOS 7 on an iPhone 4S. Does the Battery Usage/Percentage (as shown in the top-right corner of the screen of the phone) need to be calibrated again (by letting the battery fully ...
1
vote
0answers
18 views

Maximizing iPhone Battery Life [closed]

Regard maximizing iPhone Battery Life, just for my curiosity and knowledge, from a software or hardware standpoint why when we use the iPhone to access data, a Wi-Fi connection uses less power than a ...
3
votes
1answer
33 views

Understand iOS Low Battery logs

Good morning everyone. I'm kinda new to this site but I see there are many expert opinions, so I would submit to you my question, hoping it will be helpful for someone else. Before proceeding, I beg ...
1
vote
1answer
16 views

Concatenating date and cycle count to file on startup

I have the following code from here to find the cycle count of the battery on my computer: system_profiler SPPowerDataType | grep "Cycle Count" | awk '{print $3}' I will enclose it in a simple app ...
36
votes
7answers
12k views

What are the best practices for battery longevity?

How do you maximize the cycle count of your battery? There seems to be a debate between: Leave plugged in 24/7 but do a full cycle once a month Charge to ~100%, drain to ~10%, repeat. NOTE: ...
0
votes
2answers
35 views

Revive Li-Ion Battery White MacBook (2006)

I have a White MacBook (2006) with a new battery (2013) that I accidentally let sit discharged for too long (a few weeks). Now the battery doesn't work. If I leave the battery in the laptop while ...
2
votes
2answers
5k 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
4answers
2k views

App offering audible alarm for low battery on Mavericks?

I installed the update to Mavericks a few days ago, and while it's mostly been great there is no longer a sound that goes with the low battery warning. I have several programs which suppress the ...
0
votes
0answers
18 views

Does iOS battery usage include GPS usage?

One of the most common pieces of advice given to reduce battery usage is to disable un-needed GPS features. This is becoming increasingly hard to do as many features such as activity tracking and ...
4
votes
1answer
738 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 ...
1
vote
2answers
51 views

Battery life Macbook 13 Retina mid 2014

I got a new MBP 13 Retina display, mid 2014. I get on the battery up to 5 hours at most. Is this normal? This is my first product from Apple so I do not know if this is as supposed or I got the wrong ...
1
vote
1answer
13k views

iPhone 4S - sudden drop in battery percentage

I have an iPhone 4S and I just ran into a really weird issue the third time now: the battery percentage would suddenly drop 30-40-50%. One minute, it's, say, 69%, the next minute it's 25%. If I put it ...
0
votes
2answers
1k views

Is there an iOS app that measures/reports the battery charging current?

I suspect my fake lightening cable charge my iPhone 5 much slower than my original lightening cable on the same charger. Is there an app that will display the current battery draw/charging current and ...
4
votes
2answers
1k views

How can I reset the service battery warning?

I learned from one of my other questions that the "Service Battery" warning will limit your CPU power and slow your computer down - this is a problem I've been having with my MacBook Pro. I have 906 ...
2
votes
2answers
256 views

Macbook power adapter issue: PPP003

I'm using Macbook Pro 15" Retina Late 2013. OS is Yosemite Public beta. Once in month I usually do diagnostics (Apple's boot time diagnostics, the when you press "D" ). The last the when I did it, I ...
0
votes
3answers
60 views

Mac book: Is battery cycle low means mac book still can be used at long time ?

I try to buy an old mac book pro mid 2012. Old user of this mac uses mac by electric all the time, so the life cycle till now just 3 cycles, but this computer has been used for 1.5 years. My question ...
0
votes
0answers
14 views

Macbook Battery calibration craziness

As explained at this Superuser question, I've bought a generic battery for my 2008 Macbook but didn't need it. Based on the answers, I've decided to use my new battery and proceeded to try to ...
0
votes
1answer
788 views

Checking the health of my iPhone's battery

It seems that my iPhone's (4s - purchased Nov. 2011) battery loses its charge fast. I have read all the relevant OPs. Is there any app which provides information about the battery's health? Or ...
3
votes
3answers
4k 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. ...
0
votes
0answers
36 views

Does the “Battery Doctor” technique make sense?

On my iPhone I've downloaded the application "Battery Doctor" (https://itunes.apple.com/gb/app/battery-doctor-master-battery/id446751279?mt=8) which makes you charge your phone while their application ...
0
votes
1answer
847 views

Macbook Pro 13 Retina battery drain using Chrome browser

I'm planning on purchasing a Macbook Pro Retina 8GB/256GB to replace a 2009 Macbook Pro. I'm a long time Mac user but my hesitation is whether the Chrome browser battery drain issue in Mavericks has ...
1
vote
1answer
32 views

I Have A 2013 MacBook Air that refuses to charge. I continue to use it once it says that it has no charge left. What do I do?

I received this brand new laptop yesterday and today the charger isn't responding to being plugged in. (The lights aren't flashing as they should be). The battery icon on the upper right corner has a ...
2
votes
1answer
64 views

In-store iPhone 5 battery replacement?

I have an iPhone 5 that's eligible for Apple's battery replacement program. I haven't actually had any trouble with it, but I suppose I should take advantage of the offer before it expires. There are ...
0
votes
1answer
2k views

Battery indicator is showing “Service Battery” notification

I upgraded my macbook RAM, but after that when I switched on my MAC it showed my "Service Battery" indicator in battery menu. I installed Battery Health application and it showed following stats. ...
-1
votes
1answer
50 views

Battery life of macbook air with different hardware configuration

Apple states that the 2014 11-inch MacBook Air has a battery life of 9 hours and the 13-inch model has a battery life of 12 hours. These stats are for the default configuration: Processor: 1.4GHz ...
0
votes
0answers
7 views

What behaviour should we have against batteries of a Mac? [duplicate]

I have read this general post where some people give some suggestions about the behaviour we have to adopt against the batteries of laptops. People, for example, don't suggest to remove the cable of ...
10
votes
1answer
26k views

How can I assess the health of my iPhone 5 battery?

I suspect my iPhone's battery is now much worse than it used to be. How can I assess this? Is there some kind of test I can make, to compare it with Industry average? How long can I reproduce a ...
2
votes
1answer
3k views

Can a MacBook Air battery be replaced?

I have a MacBook Air which is an awesome computer, however I am curious what my options will be when the battery finally kicks the bucket. Can it be replaced?
0
votes
1answer
25 views

iPod classic battery life

I have an iPod classic and tend to keep it plugged into a mains charger while playing music up to 4 hours a day. Will doing this damage the battery? Is it better to use all the battery power and ...
1
vote
1answer
111 views

Are my battery cycle counts increasing when MBP is on and plugged in?

I often leave my Macbook Pro (13" - Late 2011) plugged in while working on it with the charge at 100%. This post suggests that when the battery is at 100% and the laptop is plugged in, the battery ...
0
votes
1answer
41 views

Battery replacement on MacBook Pro 13" Early 2011 considerations

I need to replace battery on MacBook Pro 13" Early 2011 and I've already found the one in the local shop, but I am not sure it will fit. Old non-working battery has the following parameters: Model ...
4
votes
5answers
2k views

No Batteries Available ?-How to Check battery health on MacBook Pro early 2011

A few days ago, I went on vacation and unplugged power cable from my MacBook Pro 13' early 2011 and then I got back home, the battery was not detected by OS and didn't charge. I then understood that I ...
0
votes
1answer
18 views

Installed a new LCD screen on iPod but concerned to charge

As stated, I just installed a new ipod touch 4th generation LCD. As many youtube tutorial layout I went ahead after installing my LCD to power on the screen. However, here is my dilemma, the battery ...
2
votes
3answers
15k views

Why does my battery drop with 1% within a minute after removing the charger?

I just got a new iPhone 5S a week ago. Works perfectly aside from the fact that the battery tends to act weirdly. As mentioned in the title, when I remove the charger the battery percentage drop by a ...
9
votes
8answers
80k 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. ...
0
votes
0answers
339 views

Iphone 5 Panic IPS After Changing battery

First I will like to say sorry for my English that it’s not the best In the world. I have a problem with my Iphone 5, its all begin in the moment that I put my phone to charge after that I realize ...
1
vote
3answers
5k views

iPhone 5S gets very hot and drains battery

My iPhone 5S is getting very hot and the battery drains like 5 % in 30 seconds. I've tried it all, restoring and stuff and I've read that the problem is with iCloud. So I've deleted my iCloud account ...
5
votes
3answers
2k 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 ...
2
votes
2answers
3k views

iPad turned itself off and won't turn back on

I was just reading a webpage on my iPad and the screen went black and then the Apple logo came up and then the spinning loading wheel and it just went black... Nothing after that. The screen is ...