Balotelli has proved to be a lightning rod for controversy since joining City from Inter and has angered Mancini with his behaviour, particularly when getting sent off in a Europa League tie against Dynamo Kiev.
However, the young forward appears content to work under the man who brought him into the Inter first team and says Mancini has surpassed Mourinho, who replaced him as Nerazzurri manager in 2008, in his man-management skills.
When told that some supporters would like to Mourinho arrive in the summer, Balotelli replied: "Why? City are fourth in the league, we are in the FA Cup final for the first time in 30 years. I don't know why somebody would want another coach. Roberto is doing very well; why should he be changed? Roberto never lies. He says what he has to say; that's what I like about him. I trust Roberto.
"Maybe Mourinho said I was unmanageable because he could not do it. Roberto Mancini is managing me now, so what Mourinho said is not true. They are both great managers but they are different. When I had problems with Mourinho, he tried to work against me; Mancini has supported me.
"Mancini killed me in the dressing room after I was sent off against Kiev, he told me: 'You're an idiot, I don't know why I buy you and why I bother with you' but, with the press, he speaks well of me. The problem with Mourinho and me was that we are the same kind of character."
However, Manchester City striker Emmanuel Adebayor, currently working under Mourinho at Real Madrid after joining the club on loan in January, has a very different appraisal of the respective merits of the two managers.
"There is a huge difference between Mancini and Mourinho," he told the News of the World. "Jose has personality, character and he's not afraid to talk to you, whoever you are.
"At City I didn't exist. Mancini didn't talk to me and people had forgotten about me. But then you hear Real Madrid want you and it lifted me immediately. I thought, 'Okay, this means I am a good player'.
"I needed the manager to help me become a better player, but he was always criticising me. Mancini had no confidence in me at all. For him, whatever I did was wrong. I remember scoring a hat-trick but he said I should have scored more. I tried a few times to talk to him man to man, but he never explained why he didn't like me."