The Italy international has made a subdued start to his Reds career, failing to net in eight Premier League games since his August move.
Mourinho coached the controversial 24-year-old for two seasons at Inter Milan as the San Siro side won their historic treble in 2010.
And the Chelsea manager, whose side are top of the Premier League table, will drill his players on what to expect from Balotelli.
“I am very aware of him tomorrow. I know he’s dangerous,” Mourinho said. “He’s Mario Balotelli. He is what he is.”
He added: “Everyone is different, but everyone is a different personality. But in the end I have good memories with him.
“He’s a good, dangerous player and, because I know him so well, I will try and help my players to play against him. But even that way is always dangerous.”
Balotelli has scored two goals in 13 appearances in all competitions for Liverpool.
[dil dil = 210853]
MORE: Man United latest news
MORE: Arsenal latest news
MORE: Chelsea latest news
MORE: Liverpool latest news