Fast Charging iPad 7th Generation

USB-PD Fast Charging provides various voltages and supply currents. The charge controller completes a negotiation “handshake” with the connected device to establish both compatibility and capabilities of the attached device.

The USB-PD charger will (should) default to 5V and intentionally limited supply current until the handshake successfully completes. If the handshake fails, this will usually indicate a non PD-compliant device; the charger will continue to output 5V at low current.

If the PD handshake is successful, the charger can then switch to higher voltage. However, PD signalling is dynamic - and the charge controller of the connected device may call for a lower voltage as charging progresses. The health and temperature of the battery - along with the immediate power needs if the device - will influence the instantaneous power needs throughout the period of connection.

In summary, fast charging will not - and should not be expected to - remain constant throughout a charge cycle.

I hope this simplified clarification of the battery charging strategy and USB-PD charging is helpful.

There are two quick charging standards being used for mobile devices, currently. Power Delivery ( PD ) and Quick Charge ( QC ).

Apple uses the Power Delivery ( PD ) standard for iOS devices that support quick charging.

So, any third party power/charging adapters must support the PD standard to work with Apple iOS devices that support quick charging.

Such adapters will usually have this info mentioned in the description of the charging adapter and actually indicated/printed near the charging port, itself, on third party fast charging power adapters.

Hello,

iPad (7th generation) supports Apple’s 30 W Power Adapter for fast charging. Are you using a genuine Apple 30 W Power Adapter and Apple USB-C to Lightning lead?