Maximum current when charging a device through a computer USB 3 port using a USB 2 cable?
91091
Can a USB 2.0 cable support USB 3.0 charging?
80778
How much power can be drawn from the lightning connector by a external device?
15992
Can I charge USB devices from a powered hub that isn't connected to a PC?
32827
How to monitor USB power consumption?
141867
How does a USB 2.0 Wall Charger negotiate current output?
149633
Set specific USB ports to charge-only
50787
Splice high current charge source into USB cable?
39362
What to do if MacBook Pro 2017 uses more wattage than the charger can give?
156300
USB data transfer with a separate power source
152407
Does a self-powered USB device have to connect to VCC from the host port?
108301
How much power does a cell phone charger actually use?
25636
How do I work out if a USB-C cable is safe to use?
93836
What happens if you plug more than one charger in the new MacBook Pro (2016)?
135932
Weird USB cable (usage?)
37100
Using a higher current charger on a laptop which requires a lower current
83091
Draw power from a portable mobile charger to power circuits
154111
Max. switching current in relay