PD 3.0

Power rule
15W supply - 5 volts and 9 volts
27W supply - 5 volts, 9 volts, and 15 volts
45W supply - 5 volts, 9 volts, 15 volts, and 20 volts
60W supply - 5 volts, 9 volts, 15 volts, and 20 volts
100W supply-5 volts, 9 volts, 15 volts, and 20 volts

PD 3.0 based protocols
Super Fast Charging (Samsung)

Port : USB - C

However, PD 3.0 introduce PPS which can provide intermediate voltage rages (eg: 10V, 11V, ..) to the device which can enhance the charging efficiency.
PD 3.0 communicate the status of information of the device with the charger such as reporting any malfunction or system change within the device, temperature of the device, or what may be causing hold ups or decreased charging speed, etc. For example, if an over-current or over-voltage occurs while charging, your device will notify you with a data message of the mishap.
Backword compatible with PD 2.0 devices.

PD 2.0

Power rule
15W supply - 5 volts and 9 volts
27W supply - 5 volts, 9 volts, and 15 volts
45W supply - 5 volts, 9 volts, 15 volts, and 20 volts
60W supply - 5 volts, 9 volts, 15 volts, and 20 volts
100W supply-5 volts, 9 volts, 15 volts, and 20 volts

Port : USB - A, USB - B, USB - C

PD 2.0 support above mentioned fix voltages only. However, above power rule will be applied when using a USB-C (both sides) cable only. Otherwise, standard 5V will be delivered to the device.

PD 1.0

No power rule introduced

Port : USB - A, USB - B

USB Power Delivery 1.0 (USB PD 1.0), released in July 2012, corrects this shortcoming by allowing power delivery up to 100W over a single USB cable. Consider, for example, that a 15-inch notebook sinks about 60W, while an A3-grade multifunction printer needs about 30W. Under the new specification, both can now be powered up through a single USB hub based on the condition that both support USB PD. Notice also that the standard no longer limits voltage to 5V.

BC 1.2

The USB Battery Charging Specification (USB BC), released in August 2007, increased the power further up to 7.5W (5V, 1.5A) - accelerating the marketplace transition from device-specific charging to USB. USB BC 1.2, released in December 2010, established a more robust set of rules that increased general confidence in the use of USB charging. On the other hand, the power capability was only suitable for small devices such as smartphones and digital cameras but remain insufficient to provide the power (typically 20W or more) required by typical notebook computers and monitors.

USB Charging

Under USB standards, the USB interface implements both data communication and power supply, which is the main differential point from the earlier standard serial and parallel interfaces. USB 1.1 mandated power delivery of 2.5W (5V, 500mA) and USB 3.0 brought this up to 4.5W (5V, 900mA).

QC 5.0

Compatibility
USB PD compatible
QC 4+ (backwards compatible)
QC 4.0 (backwards compatible)
QC 3.0 (backwards compatible)
QC 2.0 (backwards compatible)
iPhone 8 and above Fast Charging

Voltages
3.3V to 20V

Output Power
100 W +

Port : USB - C

Quick Charge 5 was announced on July 27, 2020. With up to 100W of power, on a mobile phone with a 4500mAh battery, Qualcomm claims 50% charge in just 5 minutes. Qualcomm announced that this standard is cross compatible with USB PD (PPS programmable power supply), and that its technology can communicate with the charger when charging double cells and double the voltage and amperage out. For instance, a single battery requests 8.8v of power. The dual cell can then ask the PPS charger to output 17.6 volts and split it in half to the two separate battery, pulling 5.6 amps total to achieve 100 watts.

Quick Charge 5 is built on top of USB Power Delivery PPS, but it extends it with backwards compatibility with QC2 and later. It can also work with standard USB PD devices as well as Apple gadgets (iPhone 7 and newer).

QC 4+

Compatibility
USB PD compatible
QC 4.0 (backwards compatible)
QC 3.0 (backwards compatible)
QC 2.0 (backwards compatible)
iPhone 8 and above Fast Charging

Quick Charge-based protocols
Mi Fast Charging (Xiaomi/Redmi)
BoostMaster (Asus)

Voltages
3.6 V to 20 V in 20 mV steps via QC
3 V to 21 V in 20 mV steps via USB PD 3.0 PPS

Output Power
100 W (20 V⋅5 A) via QC
27 W via USB PD

Port : USB - C

Quick Charge 4+ was announced on June 1, 2017. It introduces Intelligent Thermal Balancing and Advanced Safety Features to eliminate hot spots and protect against overheating and short-circuit or damage to the USB-C connector. Dual Charge++ is mandatory, while in prior versions Dual Charge was optional.

QC 4.0

Compatibility
USB PD compatible
QC 4+
iPhone 8 and above Fast Charging

Voltages
3.6 V to 20 V in 20 mV steps via QC
3 V to 21 V in 20 mV steps via USB PD 3.0 PPS

Output Power
100 W (20 V⋅5 A) via QC
27 W via USB PD

Port : USB - C

Quick Charge 4 was announced in December 2016 alongside the Snapdragon 835. Quick Charge 4 includes HVDCP++, optional Dual Charge++, INOV 3.0, and Battery Saver Technologies 2. It is cross-compatible with both USB-C and USB PD specifications, supporting fallback to USB PD if either the charger or device is not compatible. It also features additional safety measures to protect against over-voltage, over-current and overheating, as well as cable quality detection. Qualcomm claims Quick Charge 4 with Dual Charge++ is up to 5 °C cooler, 20% faster and 30% more efficient than Quick Charge 3.0 with Dual Charge+.

QC 3.0

Compatibility
QC 1.0 (backwards compatible)
QC 2.0 (backwards compatible)

Quick Charge-based protocols
Mi Fast Charging (Xiaomi/Redmi)
BoostMaster (Asus)

Voltages
3.6 V to 20 V in 200 mV steps

Output Power
36 W

Port : USB - A, USB - C

Quick Charge 3.0 introduced INOV (Intelligent Negotiation for Optimal Voltage), Battery Saver Technologies, HVDCP+, and optional Dual Charge+. INOV is an algorithm that determines the optimum power transfer while maximizing efficiency. Battery Saver Technologies aims to maintain at least 80% of the battery's original charge capacity after 500 charge cycles. Qualcomm claims Quick Charge 3.0 is up to 4-6 °C cooler, 16% faster and 38% more efficient than Quick Charge 2.0, and that Quick Charge 3.0 with Dual Charge+ is up to 7-8 °C cooler, 27% faster and 45% more efficient than Quick Charge 2.0 with Dual Charge.

QC 2.0

Compatibility
QC 1.0 (backwards compatible)

Quick Charge-based protocols
Adaptive Fast Charging (Samsung)
TurboPower (Motorola)
Mi Fast Charging (Xiaomi/Redmi)
BoostMaster (Asus)
Dual-Engine Fast Charging (Vivo)

Voltages
5 V, 9 V, 12 V, 20 V

Output Power
24W / 36W / 60W

Port : USB - A, USB - C

Quick Charge 2.0 was introduced in 2014 and it has fixed voltage steps.
Quick Charge 2.0 introduced an optional feature called Dual Charge (initially called Parallel Charging), using two PMICs to split the power into 2 streams to reduce phone temperature.
Unlike conventional USB charging methods, a Quick Charge 2.0 end-to-end solution takes advantage of higher power levels to quickly and effectively charge devices. Quick Charge 2.0 Class A can provide up to 24 watts over a micro USB connector, 36 watts with a Type-C connector, and Class B can reach 60 watts or more. Future charging advancements are expected to show even further improvement.

QC 1.0

Quick Charge-based protocols
BoostMaster (Asus)

Voltages
up to 6.3 V

Output Power
10 W

Port : USB - A

Quick Charge is a proprietary technology that allows for the charging of battery powered devices, primarily mobile phones, at power levels exceeding the 5 volts at 2 amps, thus 10 watts allowed by basic USB standards, while still maintaining compatibility to existing USB wires. The elevated voltages allow for pushing higher amounts of power (wattage) through the cable's copper wires without further heating them up and risking heat damage, since heat in the wire is solely caused by the electrical current.