How does QC 4.0 work?

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Qualcomm just launched QC 4.0, their latest charging protocol that offers a massive leap from QC 3.0, this new speed is said to give you 1 hour for every 1 min of charge.QC 4 and qc 3 comparison

How does QC 4.0 work?

Qualcomm detail it as dual charging, this parallel charging would mean there are multiple streams of charging occurring at the same time, although it is not confirmed, we believe one possibility of enhanced efficiency, would be the streams of charging go through more than one charging chip.Qucick charge timeline to QC 4.0

Using more than one chip makes the charging more efficient as you are spreading the charging out and reducing heat generated during charging.

Also implements USB PD

When Type C came out each manufacturer has been using their own version of fast charging, they all have a Type C plug but they way they charge is not the same. USB PD brings standardization, with USB PD in QC 4.0 it, signals a move for one type of charger protocol for all devices. You won’t need a specific fast charger for your device.

Is QC 4.0 Safe?QC 4.0 safety layers

The added speed also has been partnered with extra layers of safety, with INOV version 3 with advanced thermal sensing it not only monitors the temperature but gives a charge suitable for the temperature of the battery.

The spec is also including cable quality sensors to prevent hot or burning cables. At full speed, Type C brings enough power to power Laptops and other larger devices.

When will it arrive and what Phone will have QC 4.0?

Nothing has been released to indicate what phones have QC 4.0 friendly Snap Dragon 835 but Samsungs S8 is a hot contender. From China, Xiaomi could also be one of the contenders, in the race to be the first 1 min charge for 1 hour.

We are also expecting a new wave of 5A charging cables to emerge capable of carrying the loads necessary to Type C charge your notebook.