Bosch BAT609 18-Volt Lithium-Ion 1.3-Ah Slim-Pack Battery The item is Bosch BAT609 18-Volt Lithium-Ion 1.3-Ah Slim-Pack Battery Used for Power Tool Accessories, Misc. Power Tool Accessories The product is manufactured in Malaysia Choose Slim Pack Battery for best weight. - Bosch Litheon Batteries guarantee maximum cycle life, minimum self-discharge, and no deteriorating memory effect. Bosch Lithium Ion Batteries feature (ECP) - Electronic Cell Protection - Prevents cells from overheating, overloading and deep discharging. Double lock latching system - Securely locks battery pack in Bosch High Performance Cells - Extremely robust to supply high surge currents and minimum energy loss. Bosch Battery Housing - Fully Functional after 6-Feet drop with external heat sink.