Can I use any USB-A output port to charge the 636V2 ?

Some new AC outlets have integrated USB-A output port. And some cars equipped with USB-A output ports. You can use them to charge the 636V2 as long as they have output power of 5VDC 1A (or higher).

Also, you can use any AC charger that is UL or ETL certified, and has 5VDC 1A (or higher) USB-A output port as a power source to charge the 636V2.. 

The charge cable included in the 636V2 is a USB-A to USB-C power charging cable. It isn't a data cable, meaning it cannot transmit data if used as a power & data cable.