No. Power Delivery is an open USB-IF standard, while Quick Charge is Qualcomm's proprietary protocol. Both can coexist on the same device but operate independently of each other.
Battery & charging
Power Delivery (PD): Definition & explanation
In a nutshell
USB Power Delivery (PD) is an open charging standard over USB-C that dynamically negotiates voltage and current between charger and device. It enables charging speeds from a few watts up to 240 W using a single unified cable and connector format.
How does Power Delivery (PD) work?
Power Delivery is a standard developed by the USB Implementers Forum (USB-IF) that lets a charger and device negotiate the optimal combination of voltage (up to 48 V) and current (up to 5 A) via digital communication over the USB-C connector. Unlike fixed charging profiles, PD dynamically adjusts power based on battery state, temperature, and device type — covering everything from smartphones to laptops and monitors. The current PD 3.1 spec supports up to 240 W and defines Programmable Power Supply (PPS) voltage steps for precise, efficient charging.
Because PD is vendor-neutral, a PD charger theoretically works with any PD-capable device regardless of brand. Many smartphone makers (Apple, Samsung, Google, etc.) use PD as a baseline but often add proprietary fast-charging protocols on top for higher speeds. Actual charging speed depends on three factors: the charger, the cable (must support the required power), and the phone itself. Without a PD-capable cable and adapter, even a PD-compatible device is limited to standard charging speed.
Advantages of Power Delivery (PD)
- Vendor-neutral, open standard
- One charger covers many device types
- Dynamic power negotiation
- Supports up to 240 W
- PPS enables precise, efficient charging
Disadvantages of Power Delivery (PD)
- Cable must explicitly support the power level
- Multiple PD versions cause confusion
- Proprietary extensions limit full compatibility
- Peak power rarely fully utilized
Frequently asked questions
You need a USB-C cable certified for the target power level — basic cables often support only up to 60 W, while higher wattages require special E-marker cables. Check manufacturer specs or USB-IF certification.
Speed depends on the weakest link in the chain: charger, cable, and phone chipset must all support the same maximum power. Typical smartphones charge at 18–45 W via PD, even if the charger itself can deliver more.
Guides with Power Delivery (PD)
No linked guides for this term yet.