This is bulky, and expensive, and doesn’t come out until january, but at least it provides power specifications for the ports.
Front (left to right):
SD Card Reader
Stereo Headphone Port
USB 3.1 Gen 1 Type-A Port - High-power BC 1.2 5V, 1.5A
USB 3.1 Gen 1 Type-A Port - High-power BC 1.2 5V, 1.5A
USB 3.1 Gen 1 Type-A Port - Standard Power 5V, 0.9A
USB 3.1 Gen 1 Type-A Port - Standard Power 5V, 0.9A
USB 3.1 Gen 1 Type-C Port - Standard Power 5V, 1.5A
Microphone port
Gigabit Ethernet
USB Type-C Computer Link
HDMI 1.4b with support for resolutions up to 4K/30Hz
DC Power
If you need more 1.5 Amp ports, perhaps the problem is that your proposed use–(add USB ports, charge up!) isn’t so obvious.
