The cell phone snatcher who assaulted a woman holding her 3-month-old baby has been arrested after cops found him hiding out at his uncle’s Bronx home, cops said Tuesday.

Alonzo Brown, 18, allegedly kicked the 24-year-old mom in the back near East Tremont Avenue and Bronx Park Avenue in West Farms around 12:45 a.m. Friday, according to police.

He has been charged with two counts of robbery, attempted robbery, multiple counts of assault, and criminal possession of stolen property, cops said.

The victim and her child, who was nestled to her chest, fell to the ground and suffered minor injuries, cops said. They have since been treated and released from Jacobi Medical Center, authorities said.

Cops caught up with Brown early Tuesday at about 9:30 a.m., police sources said.

He was hiding out in his uncle’s Decatur Avenue apartment in Bedford Park, police sources said.

Brown has prior arrests for petit larceny and at least two counts of criminal possession of a weapon, cops said.Charges in this case are still pending, cops said.