Does the iPad 10th Gen limit charging to 20W?

While some more recent models of iPad may charge more quickly, an iPad10 will only see marginal gains in charging speed when using a 30W USB-C Power Adapter in preference to the stock 20W Power Adapter.

However, the higher-power USB-C Power Adapter does provide benefit when being used with other USB devices via a USB-C hub. A higher-output Power Adapter provides a greater “power budget” - allowing other devices to receive power while maintaining the iPad10's maximum ~20W charging rate. For example, a USB-C multiport hub may typically require 10W power, plus connected USB devices (external storage, keyboard, mouse etc) also draw additional power from the source. If the connected load exceeds the available supply, the iPad may not charge - or may charge at a substantially slower rate. In extremis, both the iPad and Power Adapter will share the connected load - and the iPad may actually discharge its battery to make-up the shortfall in available power from a connected Power Adapter.

Per my earlier reply within this thread, earlier today, the iPad10's maximum charging rate is reportedly ~20W.

A 30 W adapter will charge faster than a 20W.

mosawer05 wrote:

Is there a specified maximum wattage for charging the iPad? For example, the iPhone 15 can only charge up to 20W via cable and 15W via MagSafe.

No model of iPad support MagSafe wireless charging.

All recent models of iPad require at least 10-12W (i.e., 2.4A @5V) to reliably charge.

Some of the most recent model with charge at up to ~28W when charged using a USB-C Power Adapter that supports USB PD (Power Delivery). The remainder typically limit charging to ~20W.