Jiegu adapters allow me to convert a regular micro USB cables to work with a phone that has type-C port. Sometimes when I travel it is a nice backup to have as I have many more micro USB cables than type-C cables.
The maximum rate 3.1 type-C cables can get is 1500 mA. I tested the phone with battery between 43% and 59%. In this level of battery the phone uses rapid charging if possible.
pink mini cable with converter charged at max of 850 mA
pink mini cable with converter charged at max of 940 mA
For comparison purposes, here are the results with Jiegu 3.1 cable:
36" silver cable (3.1) phone was charged at max of 1060 mA
JIEGU USB Type C Adapter
Ali Julia review ★★★★★