Does iWALK power bank charge an iPad?

Does your iPad have a Lighting port, or a USB-C port?

If the iPad has a Lightning connector, any PowerBank that has the older USB Type-A (rectangular) connector will charge devices at 5V. The PowerBank needs to be rated at 12W (i.e., 2.4A @5V) or greater to reliably charge the majority of iPad models.

If instead your iPad or PowerBank has a USB-C port, you must check the specifications of the PowerBank to ensure that it supports USB PD (Power Delivery).

Some third-party USB-C power adapters (and portable PowerBanks) may not support USB PD. Power Delivery mutually negotiates the charging voltage; the source, load and cable are all elements involved in the negotiation protocol. Unless the Power Adapter explicitly supports USB PD, it will almost certainly fail to charge the iPad; proprietary charging standards, such as QC (Quick Charge), are not supported.

Is your power bank certified for the iPad Pro?

I would recommend, to buy only certified accessories to your iPad Pro.

About Made for iPhone, iPad, and iPod touch accessories - Apple Support