Correct Charging Cable for iPad 9th Generation 10.2"........

Hello,

I want to be able to charge my 10.2" 9th Gen iPad from an external battery block and an Apple MFi Certified cable while I'm traveling. Which Apple USB-A to Apple Lightning connection cable do I need?

My existing non-Apple USB-A to Lightning cable doesn't charge my iPad from a battery block, BUT does charge my iPad via a wall block.

Thank you for your time.

Sean Hite