Can there be a potential diffrence between two adjacent conductors that carry the same amount of excess positive charge?

Would you need to give potential energy to an object to move it from one plate to the other?

If you think yes, then that is the definition of a potential difference.

What do you disagree with in my post? It was factually correct, and it gave you a means to answer your question.

Frankly your comment was offensive.

Plus I've answered so many of your questions without you giving a single comment. Feedback is so useful.