The 18V 2.0Ah lithium-ion battery BSL1820M (339782M) is a powerful, long-lasting battery for a variety of Metabo HPT 18V slide-type power tools. It delivers increased productivity and run-time thanks to the large 2.0 Amp hour (Ah) capacity. The Amp-hour capacity refers to how long the battery can last before recharging. This impressive 18V 2.0Ah lithium-ion battery can be used to power all Metabo HPT 18V slide type cordless tool models. For protection from the elements, this battery features a resin coating. Its complex circuitry also prevents damage from overload, overcharge, and over-discharge of the battery. The Metabo HPT battery is warranted to the original purchaser to be free from defects in materials and workmanship for a period of 2-years from the original purchase date. Every Metabo HPT accessory is designed to the highest standards and is rigorously tested for both performance and durability. Features: - TYPE: Slide type 18 Volt battery technology - AMP HOURS: 2.0Ah for 18V tools - BATTERY FUEL GAUGE: Indicates remaining battery power level - LITHIUM ION: 50% lighter than most NiCd batteries to reduce user fatigue - LIGHTWEIGHT: At 0.84 lbs - 30% LONGER RUN TIME: Compared to BSL1815X 1.5Ah battery - APPLICATION: For use in 18 Volt Metabo HPT power tools - MULTIPLEX PROTECTION CIRCUIT: prevents over-load, over-charger & over-discharge - WARRANTY: Covered by Metabo HPT's two-year Lithium-Ion battery warranty