USB-C charge: Electric bicycle pump charge use with USB-C cable, fully charged in less than 30 minutes usually. It takes 1.5 hours to fully charge when the air pump there is no power at all.
Bike air pump buttons: How to use the "SET" button: a.
Short press to switch mode: Motorcycle / Electric bicycles / Bicycle / Custom; b.
Long press to switch unit: PSI / BAR / KPA / Kg/cm²; c.
Double click: Switching +/- pressure values.