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jw3571

macrumors regular
Original poster
May 21, 2010
157
2
How long are you guys getting out of your battery? I was mostly just using the Internet and only got 4 hours. Is that common?
 

afireintonto

macrumors 6502a
Jul 22, 2008
747
7
Portland
im getting a good six on just about every charge:]
heavy internet browsing, itunes, click to flash installed, and a garageband session every now and again. i love this machine!
i have the 13''
 

GreenFrog

macrumors member
Aug 22, 2008
64
1
I have a 13" ultimate.

With only itunes, wifi, outlook, and word, I get around 3-4 hours of usage. That's with 100% brightness.

Apparently Apple's claim of 7 hours is only on 50% or 75% brightness, but I forgot which.
 

aldo818

macrumors regular
Nov 18, 2009
183
0
South of France
i have the 13 ultimate and with heavy browsing and flash installed i get about 4h30

If i put the brightness down to 75 % i get about 5h20 with heavy browsing and downloading.

My Batterie after 12 cycles is at 97% health is that normal?

How often do you guys calibrate or don t we have to with the new batteries.

Does anyone know how many cycles a batterie of the new macbook air should last?
 

Ann P

macrumors 68020
Jun 29, 2009
2,311
9
California
I have a 13" ultimate.

With only itunes, wifi, outlook, and word, I get around 3-4 hours of usage. That's with 100% brightness.

Apparently Apple's claim of 7 hours is only on 50% or 75% brightness, but I forgot which.

50% with minimal settings I believe.
 

Corax

macrumors 6502
Apr 27, 2009
266
0
Willemstad - Curaçao
When I plug my 13" Air to my 42" full HD TV, and watch a 120min Full HD MKV movie with VLC, there is around 50% battery left afterwards. That's pretty good to me!
When watching other, smaller, 720p movies it uses around 25/30% per movie.
 

thelookingglass

macrumors 68020
Apr 27, 2005
2,138
633
and the guys with the 11 inch ones, do you really get 5 hours ?

Just all depends on what I'm doing. Just surfing the net, doing some Office work, then yes I do. If I start blasting videos, downloading stuff and installing apps, then 5 hours is a pipedream.

If the MBA had the iPad's battery life, this would truly be my dream machine.
 

GGJstudios

macrumors Westmere
May 16, 2008
44,545
943
How much time you get on a charge varies greatly, depending on what you have running. Screen brightness is a big factor. Other factors include WiFi, bluetooth, widgets on your dashboard, background processes, apps you have open, Flash on websites, etc. It's not realistic to expect to achieve the advertised durations in the real world, since there are so many contributing factors.

This should answer most, if not all, of your battery questions: Apple Notebook Battery FAQ
 

Deshke

macrumors newbie
Dec 16, 2010
29
0
11.6/4/128 here

Safari, iTunes, and light Lightroom use with 2-6 bars brightness gets me over 5 hours still, which is great for cross country flights.

Skype will get me barely over 3 hours fullscreen, half brightness.

Netflix will get me 2-2.5 hours streaming HD, quarter brightness.

quarter brightness ? lool :p that isreally dark :p
 

asoksevil

macrumors 6502
Jun 7, 2010
483
158
London, UK
Depending on which tasks I'm performing, but usually 4 hours if I play or watch some movies. Web surfing with not too much flash plus sparrow (mail), powerpoint, word with bluetooth off and brightness set at 50% I can get almost 7 hours.
 

St. G

macrumors member
Nov 29, 2010
87
0
I'm seeing about 5 hours in OSX, but only about 4 hours in Win 7 doing the same sorts of things. Not sure what explains the disparity, but it's there.

Once I start 3D gaming in Win 7...well, it's damn well time to plug in.
 

Deshke

macrumors newbie
Dec 16, 2010
29
0
I'm seeing about 5 hours in OSX, but only about 4 hours in Win 7 doing the same sorts of things. Not sure what explains the disparity, but it's there.

Once I start 3D gaming in Win 7...well, it's damn well time to plug in.

lol none if you are saying you are using the 11 or 13 inch ...
 

St. G

macrumors member
Nov 29, 2010
87
0
In a dark enough room, even 1 bar is plenty. But usually, I'm running in the 50-66% range.
 

DraziGuy

macrumors member
Oct 20, 2009
81
1
I've got a 13". I get about 7-7.5 at about 70% brightness. That is usually a 50 minute typing session followed by 10 minutes browsing between classes. Gets me through a whole day without having to worry about carrying the charger or finding an outlet.
 

crazyyankeefan

macrumors regular
Jul 27, 2008
136
0
Albany, NY
I must say some people are really paranoid about this whole battery thing. Overall, I believe the batteries are fine, seriously...

How many hours you get depends on a lot of various parameters when you use your computer. Brightness, the type of work/program running, etc.

I put my computer to sleep right after it was fully charged. After 4 days, it has 87% left, so it's about right that it can last 30 days of sleep.
 

Matthew Yohe

macrumors 68020
Oct 12, 2006
2,200
142
Does anyone know how many cycles a batterie of the new macbook air should last?

You should be able to get about 1000 cycles before it's at 80% of it's health.

So, if you get 6 hours today, you'll get 4.8 after 1000 cycles.
 

GGJstudios

macrumors Westmere
May 16, 2008
44,545
943
You should be able to get about 1000 cycles before it's at 80% of it's health.

So, if you get 6 hours today, you'll get 4.8 after 1000 cycles.
That's not necessarily true. Battery health varies greatly, depending on how a battery is cared for. Also, the time you get on a charge varies greatly, depending on how your Mac is configured and what you have running at any given time.
 
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