The authors report a patient of transorbital penetrating intracranial injury by a battery. A 59-year-old man presented with a foreign body in the left orbital region after an explosion during waste combustion. Physical examination revealed his left eyelid had been punctured and the eyeball ruptured by what appeared to be a battery, which was lodged in the left orbit. The patient was neurologically intact. Facial computed tomography showed a ca. 6.2 × 1.7 cm sized metallic foreign body, probably an electric battery, penetrating through the left orbit and orbital roof and terminating in the left anterior cranial fossa. Clinical presentation, treatment course, and follow-up are discussed.