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The 13" Air has a 54Wh battery compared to the almost half capacity 30Wh battery of the ChromeBook. So that's almost half the battery life on almost half the ba
by blinkingled 13y ago
The 13" Air has a 54Wh battery compared to the almost half capacity 30Wh battery of the ChromeBook. So that's almost half the battery life on almost half the battery capacity. Not exactly dreadful but could get better.
With Haswell Intel got the power draw at idle down to a very good level. So the major power sucker is still the screen. But given the Chromebook has a smaller screen and less powerful SoC the ChromeBook should in theory get little better battery life than it does. That one we can chalk up to the 3.4 Linux kernel that the ChromeBook is using and OS X / Safari generally always being ahead in power use department.
I think we'll see the battery life get better with the newer Haswell Chrome books when Google switches to a more recent Linux kernel.
- deleted 13y ago[deleted]
- TylerE 13y agoInteresting way to twist the numbers. To be accurate: The Chromebook gets 38.5% of the battery life with 55.5% of the battery capacity. That's quite a bit different than the 1:1 ratio you imply, more like 0.7:1. Put yet another way, with the MBA13's battery, the Chromebook would last 9.7 hours. With the Chromebook's batter, the MBA would last 7.8 hours.
- blinkingled 13y agoTwist? If I had implied 1:1 - why do you think I spent the next paragraph explaining the difference? Also 0.7:1 isn't exactly dreadful - so that point stands.
- TylerE 13y ago"So that's almost half the battery life on almost half the battery capacity." If that's not implying a 1:1 ratio I don't know what is.
- blinkingled 13y agoAre the battery life tests the same between the Air and ChromeBook? The Air review from Anandtech tests the Air for Light, Medium and Heavy Workloads (whatever that means) in which it gets 11/8.9/5.53 hours respectively. The ChromeBook test on the other hand is labelled "Web Browsing Battery Life" which to me suggests that it isn't exactly the same as the one used with Air or for that matter which one of the Light/Medium/Heavy compares closely to it.
- tedunangst 13y agoDid you not read rayiner's link? There's a big graph labelled "Tablet Web Browsing Battery Life" with the MBA in it.
- blinkingled 13y agoDo you happen to know if "Tablet Web Browsing Battery Life" and "Web Browsing Battery Life (WiFi)" are one and the same thing though? Tablets don't load Flash. ChromeBook does by default. The tests may still be different in unknown ways.