KK INR At 3A from 4,2V to 3,5V around 2400mAh.
At 5A 1800mAh
10A 800mAh.
KK ICR
3A 1700mAh
5A 1200mAh
Your TF test
3A 1300mAh
6,4A (4,15V-3,5V) under 100mAh.
TF have more capacity, but KK better hold voltage