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MacBook Air 2013 i7 Battery Life
- Thread starter k3ith
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To summarize:
Speed - up to 20% faster
Power consumption - up to 20% more (with medium use) but same at idle.
Seems to be a logical tradeoff
It's not same only at idle but with a light workload as well.
Otherwise, it's a tradeoff for medium-high workloads as you said. However, the point is that i5 is more efficient in terms of battery consumption while doing the same amount of work as i7. This becomes clear in Anandtech comparison.
Therefore, for the same amount of work done, battery drainage does not even out because i7 is faster while working under more strenuous loads.
Excellent - thanks for posting this. I had been trawling around looking for this exact info!
I've just been doing light web browsing and occasional youtube videos and I've been getting about 5-6 hours on average...13 inch, 250 gb, 1.7, 8 ram...I've had it for 4 days.
I have had this i7, 8gb ram, 13'' for about 10 days now and I'm not getting 8+ hour battery life yet.
How long does the macbook air take to "INDEX?" ANd how long for the battery to CALIBRATE?
How do I know when it's done "indexing" and calibrating??
How long does the macbook air take to "INDEX?" ANd how long for the battery to CALIBRATE?
How do I know when it's done "indexing" and calibrating??
11" i7 256gb 8gb - I routinely get 10hrs of regular use on a full charge. This is timed with my iphone stopwatch. I'm still on Mountain Lion; scared to lose the battery life upgrading to Mavericks...
haswell horible
I got an 11 inch I7 8gb ram, 128gb drive less then a week old. Battery life is absolutly horrible compared to everyone else's stats. If I stare at the screensaver with nothing else going on after a restart, I get exactly 8 hours running apple's screensaver on low brightness. (I tested cause daily use pissed me off). that's not so bad, but, having mostly safari, a bit of quicklime and tiny bit of iPhoto use, I get about 4.5 hours! And, when running MainStage (the reason why i got this thing) I get 2.25 hours max! I do expect apples numbers to be higher then mine for sure. However, Here's the kicker, My old 4.5 year old macbook, can still stay on almost 4 hours with the average, safari/youtube, audio editing, a bit of iPhoto etc.... One things for sure, the old macs were designed to compute things on battery power, and the new ones, not at all.
I got an 11 inch I7 8gb ram, 128gb drive less then a week old. Battery life is absolutly horrible compared to everyone else's stats. If I stare at the screensaver with nothing else going on after a restart, I get exactly 8 hours running apple's screensaver on low brightness. (I tested cause daily use pissed me off). that's not so bad, but, having mostly safari, a bit of quicklime and tiny bit of iPhoto use, I get about 4.5 hours! And, when running MainStage (the reason why i got this thing) I get 2.25 hours max! I do expect apples numbers to be higher then mine for sure. However, Here's the kicker, My old 4.5 year old macbook, can still stay on almost 4 hours with the average, safari/youtube, audio editing, a bit of iPhoto etc.... One things for sure, the old macs were designed to compute things on battery power, and the new ones, not at all.
There are many factors that impact your battery life. See the BATTERY LIFE FROM A CHARGE section of the following link for details, including tips on how to maximize your battery life.
The link below should answer most, if not all, of your battery/charging questions. If you haven't already done so, I highly recommend you take the time to read it.
No, not to any significant degree.
I have had the 2013 13" ultimate i7 machine running Mavericks since Christmas... It is AMAZING! I was worried about the battery life, but it seems to run in the range of 10-12 hour using WIFI (Safari, email, etc) and other general productivity apps like MS Office, Acrobat, Evernote, etc. I can safely go out for a day's worth of meetings without lugging a brick and a power cord.
I do keep the brightness below 50%-- just bright enough so it is not an effort to read. And I have not tried to watch videos to date.
I was skeptical but it has proven to be a great machine.
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I have a top spec 13" inch and it took over two weeks for my battery life to sort itself out. I'm now get 10+ hours with light use, normally dim the screen down a bit. Even when playing FM 2014 I can get 4 hours or so out of it on a high spec game.
Really impressed with the battery on my 2013 11" i7/8gb/512gb MBA as well, and I am still running 10.8. I didn't really appreciate it until I started ripping my DVD collection recently (the 512 SSD is nice for this) and watching movies at bedtime.
If I'm only watching a movie, after a half hour the battery still reads 100%. After 3 hours it's still 90%. Have never come close to running it all the way down, but the 12+ hour estimates that it shows are probably about right. I have the screen turned way down (5 or 6 dots brightness), but that's as bright as I want in a darkened room.
If I'm only watching a movie, after a half hour the battery still reads 100%. After 3 hours it's still 90%. Have never come close to running it all the way down, but the 12+ hour estimates that it shows are probably about right. I have the screen turned way down (5 or 6 dots brightness), but that's as bright as I want in a darkened room.