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That sucks. Now if it was at 100% brightness that would be good.

idk I'm thinking that's really good, I'm talking about usage time not uptime.

I remember getting similar results with my iPhone 5 and thought it was great.
 
I'm impressed with my 5S battery today. Had it unplugged since about 11am, literally have not put it down all day, and I'm just now on 3% about 12 hours later.
 
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