USB Power Delivery Specification Revision 2.0,
Apple USB Type-C 29W Charger
Apple iPhone 8
60% Charge: 14.7v 0.56A (8.2W)
74% Charge: 14.7v 0.47A (6.9W)
76% Charge: 14.7v 0.27A (3.9W)
80% Charge: 14.7v 0.26A (3.8W)
iPhone X
iPhone 7
35% Charge: 5.13v 1.78A (9.1W)
45% Charge: 5.13v 1.68A (8.6W)
50% Charge: 5.13v 1.55A (7.9W)
55% Charge: 5.14v 1.30A (6.6W)
60% Charge: 5.15v 1.18A (6.0W)
65% Charge: 5.15v 1.18A (6.0W)
70% Charge: 5.15v 1.18A (6.0W)
74% Charge: 5.15v 0.98A (5.0W)
75% Charge: 5.15v 0.90A (4.6W)
76% Charge81% Charge: 5.16v 0.70A 83A (34.6W2W)87% Charge
80% Charge: 5.16v 0.70A 66A (3.6W4W)
91% Charge88% Charge: 5.16v 0.63A (3.2W)
92% Charge89% Charge: 5.16v 0.57A 51A (2.6W)
92% Charge: 5.17v 0.37A (1.9W)
93% Charge: 5.16v 17v 0.49A 34A (21.5W7W)
94% Charge: 5.16v 17v 0.42A 30A (21.1W5W)
95% Charge: 5.17v 0.35A 22A (1.8W1W)
96% Charge: 5.17v 0.30A 20A (1.5W0W)
97% Charge: 5.16v 0.23A 14A (10.2W7W)
98% Charge: 5.17v 0.18A 11A (0.9W5W)
99% Charge: 5.17v 0.14A 07A (0.7W3W)
...
100% Charge: 5.17v 0.07A (0.3W)
iPad Air