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What is the main reason behind the 17 hour battery life, mainly in comparison to a MacBook Pro? Does this come mainly from the battery size, power management in
by yoz-y 9y ago
What is the main reason behind the 17 hour battery life, mainly in comparison to a MacBook Pro? Does this come mainly from the battery size, power management in the OS or components?
- skywhopper 9y agoGiven that the only battery life number they quote is for video playback (with no specs about the video format, bitrate, resolution, full-screen state, etc), I suspect that number just happens to be extra high when you choose the optimal video in the optimal format and play it full screen (so the OS can stop spending cycles on UI rendering). Note that Apple specifies 10 hours of "iTunes Movie playback" for the 15-inch Macbook Pro. It's probably possible to improve on that with some other format. Apple also gives a quote for "wireless web" usage (the same 10 hours). The 15-inch Surface Book 2 is also significantly thicker and about 5% heavier than a 15-inch Macbook Pro. So I'm sure more battery plays a role as well.
- cube2222 9y agoThey advertised 13.5 video playback for the sp2017 and I'm getting 7-10 real world usage. But people have said to actually use their sb's for 13 hours, so it'll probably be 11-16 hours of real world usage.
- vladimirralev 9y agoThey use core i7-8650U which is a 15W while the MBP uses HQ model which is 47W. And the low power idle mode difference is even larger 5W vs 20, not entirely sure about the 20.