The charging speed of HyperJuice GaN chargers depends on the power output of the unit and the supported charging protocols. Many HyperJuice USB-C chargers offer fast charging capabilities, such as Power Delivery (PD) and Quick Charge (QC), which can provide rapid charging. For example, a HyperJuice GaN charger with 100W PD can quickly charge a laptop, while lower wattage outputs are suitable for smartphones and tablets.