Manufacturer Bosch 18-Volt Litheon Tools series uses a state of the lithium-ion art she owns with Bosch ECP (Electronic Cell Protection) system that guarantees optimal performance of tool and batteries even in difficult working conditions. These new batteries are designed to have a maximum life cycle with minimal self-discharge and absolutely no memory effect, ensuring the tool is ready to work when you are. It is a power tool factory refurbished. Reconditioned generally means that the tool has been returned to the manufacturer, who brings the tool back to like new condition. May contain some tools cosmetic defects.