A garage was destroyed by fire, and the likely cause is batteries. Lithium-ion batteries may have sparked a fire that burned a garage in Harford County. Crews were called to a home on Castleton Road in Darlington just before two a.m. Monday morning. A burglar alarm alerted the garage’s owner. It’s considered a total loss. Valuables, several pieces of machinery, tools, and farm equipment, were tallied at nearly $400,000.