From cables to power supplies, it pays to know the intricacies of the USB-C spec if you want the fastest charging.

Standard Micro-USB, USB-C, and Apple Lightning cables ending with a USB Type-A are the common connections you'll need to use with a portable charger. Portable chargers come in an incredible variety.

If you have an Apple iPhone with USB, then the USB Type-C port with PD will charge it at its fastest rate. ChargerLAB has shown that the maximum charging rate caps at about 30W, even for the Pro Max ...