Battara joined City as part of manager Roberto Mancini's backroom team.
"I agree with Roberto, and have thought the same myself for some time," Battara told City's website.
"Shay shows just how good he is in every match and I think he is alongside keepers as good as Julio Cesar or Gianluigi Buffon. But he is still happy to learn, since coming to City I have tried to help him with my experience and Shay is a good listener. You have to make important decisions as a goalkeeper and Shay usually makes the right ones.
"With all his experience from playing internationals, he is an excellent example of how a goalkeeper should be. He also sets a great example for the rest of the team, and it's important that they know they can rely on him."