USB Charging
USB Fast Charging
Fast charging is a general term for higher-power charging supported by compatible chargers, devices, cables, and charging methods.
Related: USB Power Delivery · USB PD PPS · USB-C Charging
Characteristics
| Charger | Must support a charging protocol and power profile the device can use |
|---|---|
| Device | Must support and request the faster charging mode |
| Cable | Must support the required current and power level |
| Connector | Must be used in a configuration supported by the charging technology |
| Standardized USB methods | USB Power Delivery and optional PPS support compatible fast-charging implementations |
| Maximum charger wattage | Does not force a device to draw more power than it negotiates or supports |
| Fallback behavior | Connections may use a lower supported charging mode when the preferred one is unavailable |
