To charge your UPRIGHT device, use the charging cable that came with it (USB C to USB C for UPRIGHT GO S and UPRIGHT GO2). First, connect it to the port in your device. Then plug it into a port such as in your computer port or an iPhone charger. (For safety reasons, the UPRIGHT GO 2/S is designed to block the current from smart/power chargers, such as those used with PCs and Macs.)
The LED on your UPRIGHT device will be solid red while charging and will turn green once your device is fully charged.