I have to sigh that the charging speed of smartphones has been improving rapidly in recent years. From the era of "five blessings and one peace" for the whole nation, to the current fast charging of more than 100W is emerging in various companies. Modern people's charging habits have gradually changed from putting it on the bedside to charging all night before going to bed to use the fragmented time before going out to charge, and use wireless charging to make up for it in fixed scenarios.
So, when the charging speed is upgraded, can the Type-C cables you use to charge be mutually compatible?
Charging is an end-to-end process. If you want to realize fast charging, from the charger to the charging cable to the mobile phone, every object must support the fast charging mode you need. If one link fails to meet, it will return to normal speed charging. Although fast charging based on Type-C port has been basically implemented on mobile phones other than iPhones. But there are huge differences between Type-C and Type-C lines.
For Type-C, since the number of contact pins of the interface is more than that of the old standard Type-A port, if both ends of the line are Type-C ports, it will support at least 3A current transmission.
At a voltage of 20V, any double-headed Type-C line can reach 60W of power. But this is only considered to be the castrated version of the Type-C cable, because the full-function C-wire not only supports high-power fast charging, but also supports external display screens and graphics card docks. When it comes to fast charging on mobile phones, we have to mention the PD fast charging protocol.
PD (Power Delivery) is a fast charging specification formulated by USB-IF organization and is compatible with devices such as mobile phones, tablets and laptops. On smartphones, the PD3.0 protocol with a charging rate of up to 100W is more than enough for now. However, a 100W charging requires the Type-C line to support at least 5A of current transmission, and it cannot be triggered if it is just a 3A line. In addition to the wire materials, the common E-Marker chips in the merchant's pictures are also a criterion for determining whether the C wire is good or bad. E-Marker chips generally ensure that at least one line is supported in video output, USB 3.1 and 5A current delivery, while higher-end E-Marker chips will appear on the fully functional C-port line.
There are also some mobile phone manufacturers that have changed the random charging cables due to private protocols. For example, OPPO's 65W SuperVOOC fast charging is compatible with PD and PPS fast charging protocols, and is also backward compatible with its own full series of VOOC fast charging types. Since the power combinations of each private fast charging protocol are different, if you want to achieve the same fast charging experience, it is best to use the original charging cable.
