USB-C PD is a power delivery spec that can provide up to 100W of power, which means that you can plug in a laptop and charge it.
Its output end is a USB type C connector with USB 3.1 Power Delivery (PD) function support. It can output 5V, 9V, 12V, 15V and 20V.
It delivers a maximum of 100W power to any connected device. The Apple USB-C Charge Cable is longer (2m) and also supports charging, but data-transfer speed is limited to 480Mbps (USB 2.0) and it doesn't support video.
USB Type-C (1.2) without USB PD offers a healthy maximum of 5 volts at 3 amps (15 W), so it is suitable for a wide range of applications without the added complexity of USB PD.
Will any port work with any charger? USB-C is a universal charging standard. That means that, technically, it doesn't matter what USB-C charger you use — it should be able to power up a laptop with a USB-C charging port and power bank.
USB-C PD is a power delivery spec that can provide up to 100W of power, which means that you can plug in a laptop and charge it.
USB-C power supplies always support 5 V and some are limited to that, but support for higher voltages is where it's at. The usual voltage steps of USB-C are 5 V, 9 V, 15 V and 20 V ; 12V support is optional and is more of a convention.
Apple 20W USB-C power adapter
Line Voltage: 100 to 240 VAC. Output Voltage/Current: 9 VDC/2.2 A. Minimum Power Output: 20 W.
A USB-C charger can support up to 100 watts and 20 volts of power, while a traditional USB charger can only support 2.5W and 5V. This means that not only will a USB-C charger top up your devices faster, but it can also be used with multiple devices at once, as well as for larger devices like laptops.
Charging voltages range between 2.15V per cell (12.9V for a "12V" 6 cell battery) and 2.35V per cell (14.1V for a "12V" 6 cell battery). These voltages can be applied to a fully charged battery without overcharging or damage, since they are below the "gassing" voltage, and cannot break down the electrolyte.
All USB-C cables must be able to carry a minimum of 3A current (at 20V, 60W). But for high-power 20V/5A (100W) charging, you need a 5A-rated USB-C to USB-C cable that contains E-Marker chip to identify the cable and its current capabilities.
After testing more than 60 models, we've determined that the best car charger is the dual-port Nekteck PD 45W Type-C Car Charger. You can fast-charge phones, tablets, and laptops on its USB-C port and simultaneously charge a second phone on its USB-A port.
The USB Power Delivery requires conforming equipment to initially deliver 5 V at a maximum of 900 mA to the load to prevent such damage. Communication between the load and the power source can then establish a higher maximum load current and greater operating voltage.
USB-C cables can deliver up to 3 amps up to 100w of power but varies from device to device which can be seen in the table below.
Faster Data Transfer Speeds - Type-C adapters can transfer data at speeds of up to 10 gigabits per second, which is way faster than ordinary USB charger cables. Powerful - These chargers can provide as much as 100 watts of power, so you can charge your laptop faster.
Almost all computers that charge via USB-C have a maximum charge speed of 60 watts—but the 15-inch MacBook Pro can charge at up to 87 watts, and the 2019 16-inch and 2021 14-inch model maxes out at 96 watts, making them the most noteworthy exceptions.
EU lawmakers argue this move will help cut down on e-waste and ensure people only have to carry a single charger for all their devices. At present nearly every modern Android device uses the USB-C chargers along with Apple's own iPad tablets.
An AC adapter supplying electricity at a higher voltage than required will cause the connected device to run hotter. Sending power at a higher voltage will also shorten the lifespan of the device and may fry its internal circuits. Using an AC adapter with a different current rating can be an issue.
Any USB-C to USB-C cable should handle 3 amps at 20 volts, or 60 watts.
USB-C PD from DC Adapter
2_20V can be connected to any USB Type-C device to power and charge that device. The adapter needs 24V DC input to the board, providing USB-C PD output. Profiles are: 5V/2.39A, 9V/2.07A, 12V/1.51A, 15V/1.27A, 20.0V/1.11A.
The standard for USB-C devices without PD is 5V/3A, but the voltage is configurable depending on the device and can go as high as 20V/5A (with an EMCA cable). Then they settle on a compatible rate which both the supply and device support and the charging (or discharging) begins.
Check the Voltage and Current Output
If you see a cable that puts out power at 5V, 9V, 12V or even 2000mA, this is a sure sign that it's a fast charger. On the other hand, anything below 1000mAh is considered a slow charger. So look for 5V-2A or 5V-2000mA.
6 Ports for More Devices: 200W USB C charging station supplies up to 200W of power, and charges 3 MacBooks, 2 mobile phones, and your AirPods simultaneously. A 100W USB C to USB C charging cable is included in the box.
USB-C allows up to 100W of power by incorporating the Power Delivery 2.0 specification from the USB trade group. (The spec has been updated to 3.0 with additional smarts about multiple connected devices, but it's fundamentally the same.) The trick is that you have to have the right cable for the right voltage.