can anybody post their results? i think there should be a consolidated list of revs with battery life/usage for a direct comparison. post your rev a and b results too...
Got a tip for us?
Let us know
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Macbook Air Rev. C battery life?
- Thread starter sofaking30
- Start date
- Sort by reaction score
Im seeing about 30 minutes extra. I also finding the battery charges much quicker.
Faster charge time would be welcome indeed. I think the MBAs battery seems to be a slow charger.
I'm at 4:30 Hours w/ Vista Virtual Machine running. Recharging takes about 2 hours from 0->~90% for me now compared to my rev A which 0->80% takes ~3 hours.
I hadn't thought of these differences with charging, but I remember my rev B taking forever the first few weeks. My new MBA charges in a few hours. In addition, I turned the display down to three bars from bottom yesterday and got over 4:30. Was in dark lighting and wanted to see how long it could last. I never tried that with my other MBA. At the same time, even when turning display down to half brightness, I never got more than 3:15. Overall, the battery is better!
Why does Rev. C have better battery life than Rev. B? I see that the battery increased to 40 wH from 37 wH, but is that enough to account for the stated 30 min extra? Is this better battery life replicable?
I noticed today at the apple store when comparing my Rev b, that the screen on the Rev C was 1 or two steps dimmer at full brightness!
just wondering if the charging time means charging while using mba or charging while completely shut down?
+1
my 2.13/ssd is a 1 step dimmer @ full brightness. I am happy since i don't have those dreaded lines.
Yes and no:
I'm probably not the only person wondering if this battery would fit in revision B Air...
Umm..
my rev A is showing 245 cycles and 94% capacity, when new was about 98%.. how it's possible that it will drop to around 80% in 55 more cycles?
It looks that, to lose another 4%, I'll have to make another 250 cycles!
90% @ 500 cycles? may be than it will drop faster to 80%.. but the figure of 80% @ 300 cycles looks to me irrealistic even on rev A.
Are you shure that MBA battery, since the beginning, has not always been a member of the "80%-@-1000cycl." family??
my rev A is showing 245 cycles and 94% capacity, when new was about 98%.. how it's possible that it will drop to around 80% in 55 more cycles?
It looks that, to lose another 4%, I'll have to make another 250 cycles!
90% @ 500 cycles? may be than it will drop faster to 80%.. but the figure of 80% @ 300 cycles looks to me irrealistic even on rev A.
Are you shure that MBA battery, since the beginning, has not always been a member of the "80%-@-1000cycl." family??
This estimate just refers to Apple's battery replacement policy - you don't have to pay if it drops below 80% with less than 300 cycles, in the first year. Even previous generation MB/MBPs batteries sometimes remained above 90% at over 300 cycles. It really differs between units, I'm at 44 cycles and battery health is 92%. I think Air's battery had perhaps increased capacity, but apparently not increased lifespan.
I am highly skeptical that apple's new batteries will perform like new for 1000 charge cycles. Why? Because I don't see how Apple could out-invent dedicated battery companies. If this tech were promising, we'd be hearing about it. HP has a battery made by Boston battery that is supposed to be just like Apple's, but I don't know much more than that. Second, Apple is well-known to exaggerate claims, more so than their competitors. I hope I'm wrong, but time will tell. They aren't shy to call the ability to record video an amazing new feature in the new iphone 3gs, nor about their LED screens being mercury free and brighter, etc, as if other notebooks' led screens are different.
Yes!! Apple created their own battery technology. Each cell in the battery pack is charged separately and is processor controlled, to give the most optimal charging cycle. Other manufacturer batteries are charged till a certain voltage is reached and then stop charging. Go to Apple website and search for the video which explains the technology in detail.
If its 750 cycles... then I'm happy. I'm already at 70 cycles for my Rev C and I've owned the system for just 3 weeks