Police said the 14-year-old was discovered about 8:40 a.m. behind the Deans Bridge Road Walmart in his boxers and a T-shirt.
The teen told police he had left his home in the 3300 block of Blanchard Road after his mother repeatedly hit him with a belt for being sent home from school.
Richmond County sheriff’s Sgt. Jason Vinson said the teen was taken to Medical College of Georgia Hospital, where doctors concluded he had excessive bruising.
Octavias Robinson was booked into the Richmond County jail on charges of cruelty to children in the first degree.