With the Sandberg Sync and Charge Cable, you can sync with your computer and charge the battery from there directly or from a charger with a USB port.
RivaCase Type-C 2.0 – USB Cable 1.2m White
RivaCase Type-C 2.0 – USB Cable 1.2m Black
Sandberg Car Charger Micro USB 1000mA
Sandberg MHL-HDMI Converter Kit