Katt Williams Now a Battery Suspect in L.A. Too ... After Alleged GA Crime Spree

Katt Williams is racking up alleged crimes coast to coast -- he was also involved in an L.A. altercation and he's considered a suspect ... TMZ has learned.

Katt tells us he saw a car accident Tuesday outside his hotel and went down to the scene to help the victims. But while he was doing that, he says onlookers, who he described as "rappers," started making fun of his height.

Williams stands about 5'5" and he says the "rappers" were all six feet or taller. He says when he told them to shut up ... one of them hit him, so he struck back in self-defense.

He told a similar story about the 2 incidents in Georgia -- the first with 5 women in Atlanta on Sunday, and then his arrest at a pool supply store on Monday. He's accused of punching in all 3 cases.