How long a battery lasts between charges
26
votes
13answers
24k views
Why is iOS 5 draining my battery so fast?
My wife's phone went from lasting a full day to needing a recharge every few hours after upgrading to iOS 5. Mine still works fine after the upgrade. What might be causing this?
40
votes
7answers
20k views
I am missing the option to see the remaining battery life as time in the menubar?
In previous versions of OS X the battery indicator in the menubar included options to show the remaining battery life as percentage or time (or nothing).
In Mountain Lion, there's only an option to ...
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 ...
3
votes
2answers
2k views
Using memory with a higher MHz rating?
Can MacBook Pro's successfully support and fully exploit RAM of a higher MHz rating than that which they ship with?
For example, take my 15" MacBook Pro (Late 2011) that ships with 4GB of 1333MHz ...
7
votes
5answers
8k views
How can I make my iPad's battery last longer?
What are some of the things I can do to make my iPad (Wi-Fi) battery last a long time once it is charged?
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...)
8
votes
3answers
5k views
Why does my MacBook Pro die without warning?
I have a MacBook Pro (about 18mts old) which has recently started to inexplicably die without warning. I'm running it on battery and, yes, it's getting close to the bottom end (between 10 and 25%). In ...
3
votes
1answer
101 views
Is it good to keep apps closed on iOS devices?
Is it better to keep apps closed (double tap home button, hold the icon, and exit the app), as much as possible on iOS devices? I know the more apps one has open, the more RAM, for example is used, ...
22
votes
6answers
5k 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: ...
12
votes
5answers
12k views
How do I debug an out-of-control “kernel_task” process?
Just recently I noticed my battery life having a pretty significant drop and the "kernel_task" process using quite a bit of CPU (a constant 1-6% on my 2.8ghz dual-core i7, 2010 MBP). Obviously I think ...
7
votes
10answers
13k views
How long should my MacBook Pro battery last?
I have brand new Macbook Pro (15", i5 2.4GHz, 4Gb RAM) purchased at the end of May 2010 and Apple advertises up to 7 hours of wireless web battery life, however I consistently getting only about 4 ...
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?
13
votes
4answers
2k views
Can iPhone battery apps actually prolong battery life?
I've seen a few apps that claim they do some kind of conditioning/deep charge/other jargon to extend the life of an iPhone battery. Is this just hokum or do I really need one of these apps to maximize ...
6
votes
1answer
451 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 ...
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 ...
4
votes
1answer
662 views
iPhone 3GS battery oddities
I bought a 3GS in August 2009. After about 9 months I started seeing occasional precipitous drops in battery level overnight (i.e. from 50% to "dead", as in all you see is the red "charge me" icon). ...
2
votes
2answers
435 views
How can I keep my MacBook Air's battery cool?
It seems that the best advice for battery longevity on my MacBook Air is to keep the battery cool. It doesn't have powerful fans like the MacBook Pro, so I would think that overheating is even more of ...
1
vote
2answers
859 views
How often should I remove the charger from my rMBP?
I want my battery to remain healthy. I used to charge it full then remove the charger after it's done, then put it back on when it goes down to 10% .. However this is becoming hectic and I was ...
0
votes
2answers
225 views
Does removing the battery while connected to power extend battery life?
On regular Windows notebooks people generally remove their battery packs when connected to a power source, in order to extend battery life.
Does a similar approach work on the Mac?
