Concerning devices that store electrical power which can be used to run various devices in the absence of external power.
31
votes
6answers
25k views
Should I disconnect my MacBook Pro's power cord when the battery is fully charged?
Title says all. My friend told me that I need to disconnect the power cord when the battery is fully charged. Otherwise, I will shorten the life of the battery.
Is that true? I am going to use my ...
25
votes
3answers
69k views
Can I safely charge my iPhone 4 overnight on a regular basis?
First time caller, long time listener: I've seen this question asked on a few other sites but with no "definitive" answers.
The Apple website on iPhone batteries is ambiguous, at best, and the ...
23
votes
6answers
6k 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: ...
13
votes
4answers
9k views
Why won't my MacBook Pro automatically sleep?
I have my MacBook set to go to sleep after 2 minutes while on battery (via the Energy Saver preference pane.) However, when I leave it idle, it only turns off the screen—it does not actually sleep. ...
11
votes
3answers
2k views
Is it safe to always leave a Macbook Pro on?
I have an external monitor, keyboard, and mouse connected to my Macbook Pro. I have the lid closed and have it running. I run it as if it were a desktop PC, always on. I only shut off the LCD ...
11
votes
2answers
2k views
Is a refurbished Macbook Pro's battery new?
When you buy a refurbished Macbook direct from Apple, is the battery in it new? I cannot seem to find a definitive answer on their website or on the internet. I am concerned that the savings from ...
10
votes
2answers
2k views
Should I avoid booting my MacBook if it's really cold?
As the title says; if my MacBook has been exposed to minus degrees, should I wait for it to reach room temperature before I boot it or am I just paranoid and have nothing to worry about?
10
votes
3answers
3k views
Should I use the adapter or the battery?
I want to know when my MBP's battery was fully charged it's better to unplug my adapter and use my battery power or still let use adapter power?
I somewhere read that when MBP's battery was fully ...
9
votes
3answers
4k views
Charging an iPhone, difference between USB port and power outlet
The power outlet has more power obviously, but maybe the computer USB is suffice to charge it at maximum speed.
Is there a difference between charging an iPhone using the computer USB port and using ...
8
votes
3answers
169 views
What is the procedure for replacing the battery on an iPhone?
What is the procedure for replacing the battery on an iPhone?
8
votes
2answers
393 views
Battery warning ''Service battery"
Battery warning "Service battery". This warning have appeared in my MacBook Pro (2008) with Snow Leopard. Is there a way to find out what a reason of this warning, without apply to service centre?
8
votes
2answers
2k views
Does the Apple Genius Bar replace Macbook Air battery on site?
I called Apple's toll free number but wasn't able to get a clear answer from them.
My 2011 MacBook Air's battery is dying and I would like to have it replaced. The only problem is that I am ...
7
votes
1answer
4k 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.
6
votes
4answers
4k views
Does an iPad consume more battery power when there are multiple applications open?
Does an iPad consume more battery power when there are multiple applications open compared to let's say, having only one application resident in memory?
If there are differences between the ...
6
votes
6answers
4k views
Does Google Chrome have a significant impact on MacBook battery life compared to other browsers?
I've been reading , a bit about users noticing a severe drop in battery life when using Google Chrome.
I'm curious if this is a real issue - and attributed to the rendering/flash engine it uses.
6
votes
5answers
13k views
Why do iOS devices take such a long time to turn back on?
Often I will realise my iPhone or iPad is about to run out of battery, run around the house looking for a charging cable and plug, and get back just in time to see the screen go black and the little ...
6
votes
1answer
3k 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 ...
6
votes
1answer
471 views
How is the battery level calculated in the magic mouse?
I wonder how the battery level in the magic mouse is calculated.
This question about battery problems raised another one, I would like to know how the electronics in the magic mouse work and evaluate ...
6
votes
3answers
251 views
Does the real-world MacBook Pro battery life scale linearly with it's capacity?
I have a well-worn battery on my 2010 MacBook Pro. After 467 charge cycles, I get about 3 hours of the normal 6-7 hour range.
Using coconutBattery shows me that the charge capacity is 5783 mAh, ...
6
votes
2answers
166 views
How can I increase battery life with iOS 4?
Since I upgraded to iOS 4 on my iPod touch second generation my battery life is draining very fast. Is there anything I can do to help with that?
5
votes
3answers
148 views
AppleCare for iPad
I just picked up an iPad and the sales "specialist" was completely unconvincing for me to get the AppleCare extended warranty. I realize the iPad is fairly new, so not a lot of failures yet, but I am ...
5
votes
3answers
376 views
Is there a battery conditioner for an iPod touch?
My iPod Touch's battery is not performming as well as it should. I've had it for a while. Is there such thing as a battery conditioner that might help get the battery performance better?
5
votes
4answers
4k views
How long does the battery last on mid-2011 MacBook Airs?
I know that one of the big innovations in the MacBook Air was in the battery (which gets most of the internal volume of the computer!)
What is a normal loss of battery life (change in usable time on ...
5
votes
7answers
7k views
High processor/CPU load on iPhone, draining battery, how to fix?
My iPhone sometimes gets very hot and drains battery extremely quickly. When I use the app iStat to check processor load, it shows high numbers (above 2, where it is normally 0.5, not sure about the ...
5
votes
3answers
3k views
Charge from USB on computer or wall socket?
Is it OK if I keep charging my iPad and iPhone using the Mac USB ports? Or is it better to charge them with the supplied chargers?
I understand that charging slowly is better (though I'm not sure ...
5
votes
1answer
2k views
What is the best way to recharge an iPod Touch battery?
I wonder how to handle the recharging of my iPod touch ? I've heard that there are some actions to have to be done regularly or actions that arms the battery (like memory effect etc...)
5
votes
1answer
305 views
Does using a brightness reducing app save battery?
I installed the app Brightness Slider on my MacBook because the lowest brightness setting in the System Prefs isn't low enough at times. When I choose a brightness setting below what the System Prefs ...
5
votes
1answer
189 views
Can anything cause the battery “cycles count” to appear higher than it really is?
Is there anything that could cause the battery's "cycles count" in the Power section of System Information app to report number of charge cycles greater than the actual number?
I ask because the ...
5
votes
3answers
1k views
Does the MacBook Air draw power from the battery or wall socket when the battery is at 100% and plugged in?
I have a MacBook Air 13" (late 2010 model). I use it both as a portable computer (i.e. not plugged in, drawing power from the battery) and as a desktop (i.e. plugged into the wall socket) regularly. ...
5
votes
3answers
291 views
Should I expect battery life on an iPhone 4S to be significantly worse than on a 3GS?
I just upgraded from a 3GS to a 4s and my battery life is dramatically worse. I wasn't expecting it to be the same (though I was hoping that it might even be better), but I'm seeing a big difference. ...
5
votes
1answer
532 views
adjust battery-warning-level of magic mouse
How can I adjust the level at which Mac OS warns me about the battery of my magic mouse?
I always have a lack of batteries, so I would prefer if the battery warning comes up at 15 or 20%, so I could ...
4
votes
2answers
225 views
How do I show a percentage battery indicator on the iPhone?
How do I show a percentage battery indicator on the iPhone?
4
votes
1answer
2k views
What could cause MacBook battery cells to swell up?
I have a problem with my 3 year old MacBook. The battery has "swollen up" (I could post a picture if that is of help).
One side of the battery is much bigger than the other. Since it no longer works, ...
4
votes
3answers
2k views
Can using a non Apple USB cable damage an iPhone?
If I use a generic/aftermarket iPhone USB cable instead of the official Apple product, can it damage the iPhone? A vendor at the mall said that high quality iPhone USB cables have a chip that ...
4
votes
1answer
591 views
Is there a way to get the OSX battery icon to display both percentage and time?
I am working on a 2006 MacBook with Snow Leopard.
The battery level indicator has the option to show Time or Percentage remaining. I would like to show both.
Is there a way to enable this?
or
Can ...
4
votes
1answer
1k views
Is it advisable to calibrate the battery on a MacBook?
How useful or necessary is it to calibrate the battery on a MacBook?
If it is, should it be carried out when first purchased and does calibration of the battery mean it will also last longer?
4
votes
1answer
1k views
Magic Mouse battery level broken in Lion?
After upgrading to Lion my Magic Mouse's level indicator seems to be broken.
For the whole week it was reporting solid 100% on a pair of used batteries that were about 65% before upgrading. I swapped ...
4
votes
3answers
2k views
Battery on white MacBook shuts off abruptly after 30% charge is left
I have a white MacBook (MacBook4,1). I have owned and used it for over two years now (30 months, as coconutBattery would have me believe). coconutBattery and Battery Health Monitor both report that ...
4
votes
1answer
526 views
MacBook's battery “Not Charging”?
My original battery died. I purchased a replacement battery. While this battery DOES hold charge, when it is on the charger, MacBook still states "Not Charging."
I've tried the SMC Reset, taking out ...
4
votes
2answers
172 views
What charging mechanism to be used to maximise the battery life?
So I got my first Apple laptop, a Retina MacBook Pro. Since macbook pro retina's battery are no longer easily switchable I'm concerned about it's life and would like to maximize it. I have few ...
4
votes
3answers
1k views
When plugged in, does the iPhone use the battery or the external source during heavy use?
I love to play games and do other tasks that quickly drain the iPhone's battery. Sometimes I'll use the phone while plugged into a power supply. Does the iPhone still use the battery when performing ...
4
votes
1answer
196 views
Have battery status only show in menu bar when running on battery power
I use my MacBook Pro plugged in to power and an external monitor 90% of the time, and thus the little charged battery indicator in the menubar is useless. However when I'm not on wall power, is there ...
4
votes
1answer
682 views
How can I maximise the life of my iPad battery? [duplicate]
Possible Duplicate:
What is the best way to recharge an iPod Touch battery?
Since the iPad battery cannot be replaced, how can I make sure that it lasts as long as possible, preferably ...
4
votes
1answer
325 views
Is there any study on how which services/sensors consume the battery?
I am looking for some study/comparison on how battery-consuming are specific services/sensors (3G, Wifi, GPS, Bluetooth, accelerometer) in the iOS devices.
Has anyone stumbled across something like ...
4
votes
1answer
274 views
High volume battery for MacBook Pro
Can you advise me of where or if it a high capacity battery exists to replace my pre unibody battery on a MacBook Pro?
4
votes
1answer
459 views
Alpine CDE-102 keeps iPod awake until battery drains
I have an Alpine CDE-102 w/iPod cable (professionally installed) with which I use with an old 5th gen iPod Video 30gb. My goal is to just leave the iPod in the glove compartment and only remove it ...
3
votes
2answers
4k views
First steps after acquiring a new MacBook Pro (w.r.t ensuring optimal battery life)?
I just unboxed a new MBP 13.3 inch i5. I wanted to know what is the best way to start using it, so as to ensure optimal battery life i.e.
Should I charge it to full capacity, before even booting it ...
3
votes
2answers
246 views
Strange loading screen when MBP battery dies and reboots
I have a 2007 Macbook Pro and for nearly two years, the battery has been toast. In April, Apple replaced the logic board. Since the repair, whenever the power cable comes loose, the MBP shuts off as ...
3
votes
3answers
2k views
Is it wise to turn off the iPad completely if I don't use it during the day?
A friend of mine has an iPad that she uses only once a day for about a half hour.
I told her to turn it off completely in between uses to conserve energy - no point having the device run in standby ...
3
votes
3answers
1k views
Why my MacBook Pro 15" (2011) power adapter turns orange?
I bought an early-2011 MacBook Pro 15" (highest-spec model) in June. It's running Lion.
I have a problem which happens occasionally. My power adapter (while plugged in) from time to time ...
