Other Want super long battery life on your Xs, Xr, or Xs Max? Try low power mode.

EugW

macrumors G3
Original poster
Jun 18, 2017
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In low power mode, the Xs Max gets 3435/8129 in Geekbench 4.

https://browser.geekbench.com/v4/cpu/9986297

That's actually about 1/3rd faster than my iPhone 7 Plus in full speed mode, and the 3 GB 7 Plus is already reasonably speedy in iOS 12.

I think for some people, they could probably run an Xs, Xr, or Xs Max in low power mode all the time and not feel the need for more speed.
 

M33-1

macrumors 6502
Jun 15, 2010
276
153
I’m traveling this week doing trade shows and will have my Max. I’ll try low power all day and see how much battery percentage is left in the evening.
 
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EugW

macrumors G3
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Jun 18, 2017
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I’d be tempted to set up my wife’s XR like that in low power mode the first day just to see how she responds. :)
 
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Relentless Power

macrumors Nehalem
Jul 12, 2016
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I use low power mode all the time. I do know that it slightly inhibits performance, and the brightness. But overall, it really does improve the battery life greatly.
 
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EugW

macrumors G3
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Jun 18, 2017
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I use low power mode all the time. I do know that it slightly inhibits performance, and the brightness. But overall, it really does improve the battery life greatly.
Appropriate username then. ;)
[doublepost=1537877436][/doublepost]
I use low power mode all the time. I do know that it slightly inhibits performance, and the brightness. But overall, it really does improve the battery life greatly.
The brightness thing could be an issue though. How much brightness do you lose, real world. How is it outdoors in sunlight?
 

pika2000

Suspended
Jun 22, 2007
5,587
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I use low power mode very often on my 6S (because I have to if I want at least a day's worth of batter life). Performance wise, imo it's quite good. The only annoyance is how some background fetching are delayed/turned off.

Really looking forward for the XR.
 

Relentless Power

macrumors Nehalem
Jul 12, 2016
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The brightness thing could be an issue though. How much brightness do you lose, real world. How is it outdoors in sunlight?
I guess it never really posed an issue for me in direct sunlight, but I do have it where the brightness is automatically adjusted to max in those situations. But just now testing low power mode disabled, there is a significant difference with the display being more stark.
 
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EugW

macrumors G3
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Jun 18, 2017
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My 8+ got 2701/5850 in low power mode.

Strange how the A12 is roughly 10% faster than the A11 in normal use... yet somehow in low-power mode the A12 has a much greater margin? o_O
Even 2701/5850 is not bad though. My 7 Plus gets about that multi-core speed at full power.
 
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Hal~9000

macrumors 68020
Sep 13, 2014
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Even 2701/5850 is not bad though. My 7 Plus gets about that multi-core speed at full power.
Oh I agree. I use low power mode all the time too, easily switching it off/on via control center toggle. Even in low-powered mode the 8+ is still really damn fast :)

Just kinda tripped me out though seeing the speed difference between the A12 and A11 in low-powered mode. I guess I just assumed that the difference would follow the same sort of 10% margin like in normal use.
 
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johannnn

macrumors 68000
Nov 20, 2009
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Low power mode results in amazing battery life. Too bad you have to manually enable it after charging your phone.
 
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NJHitmen

macrumors 6502
Oct 8, 2010
331
287
I use low power mode on my 7 almost constantly. Only time I won't is if it's plugged in (like, in the car). I do wish I could leave it on all the time. Kind of annoying when the phone automatically turns it off during a typical charging cycle (at 80%).

On my 7, I feel like this is a necessity just to get through the day. I was hoping I wouldn't feel forced to take that step on a new phone, as I do on the 7. We'll see.
 
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