Baseus PowerBank Does Not Charge Up Ipad Pro
I bought a powerbank.
I use It on my Ipad Pro 3rd gen.
It does not charge up Ipad Pro.
It either keep the current charge level or it decreases.
Is it normal?
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Some third-party USB-C power adapters (and portable PowerBanks) may not support USB PD (Power Delivery).
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 via a USB-C.
Be aware that Apple devices do not support QC (Quick Charge) or other proprietary charging standards.
Most models of iPad require a Power Adapter rated at 12W (i.e., 2.4A @5V) or greater to reliably charge. 5W Power Adapters (1.0A @5V) intended for older models of iPhone are inadequate to charge an iPad; if the iPad charges at all, charging will be very slow. Recent models of iPad are supplied with a 20W USB-C Power Adapter.