It is not recommended to charge with a computer. Use a commercially available AC adapter to charge.
The included USB cable does not support data communication. It is a dedicated cable for charging.
For the AC adapter, we recommend a charger that outputs 5V (7.5W or more) (such as a USB PD compatible one).
[Reference]
Example of a charger that outputs 5V (7.5W or more): DoCoMo AC Adapter 07 and AC Adapter 08