My iPhone’s battery capacity increased sometime in the past few days?

Rafagon

Genius
Gold
Dec 7, 2011
7,566
1,252
113
44
Miami, Florida
#1
A few days ago, my iPhone’s maximum battery capacity was 2978 mAh.

at 100% Screen Shot 2017-01-10 at 8.59.35 PM.png


Today, my iPhone’s maximum battery capacity was 3016 mAh.

increased maximum charge a few days later.png

Anyone have any theories?

Thermal expansion perhaps? The battery was warmer today (note the temperature difference).
 

Rafagon

Genius
Gold
Dec 7, 2011
7,566
1,252
113
44
Miami, Florida
#4
I agree with both of your assessments; is this (Maximum Charge) a value that the OS polls the battery to obtain, or is this a variable that the OS computes based on available data?