My phone is just 2 weeks old It came from a replacement due to red tint.
I've charged for an hour and it charged to 82% instead of 67% ( phone is off when charging )
Charged on Bottom PORT
67% = 4000mAh
82% = 4920mAh
I've lost
15% = 920mAh ( almost )
Charged on Side PORT
9:58PM - 0%
10:45PM - 67%
10:55PM - 82%
10:58PM - 84%
That's why my accubattery is putting up the estimates at 5100 instead.
This is based on calculation with 20% loss.