A Walmart employee was arrested Saturday on suspicion of stealing $1,900 in batteries from the Surprise store.

Police were called to the Walmart Supercenter, 13770 W. Bell Road, at 2:30 a.m. when the night manager saw a suspicious white van.

Officers found Vincent Merrill, 34, of El Mirage, in a ski mask inside the van, along with 50 batteries, said Surprise police spokesman Mark Ortega.

Merrill had a master key that opened automotive department's battery cage, Ortega said.

He was taken to Fourth Avenue Jail and booked on suspicion of 3rd degree burglary.