Selling because I'm changing cars. Used for about 3 months. The original sticker was peeling off, so I reinforced it with cellophane tape. It doesn't look great, but there are no problems. Includes the manual and box. Product Description: The "Elma System" battery life extension device restores battery capacity and voltage, solving problems with engine starting, electrical system troubles, and dead batteries. Compatible Vehicle Types: Trucks | Passenger Cars | Vans Voltage: 12 volts Battery Type: Lead-acid Terminals: Marine Terminal Model: NE-12