The Metabo HPT 382310M is a 4-pack of 18V 2.0Ah lithium-ion batteries with fuel gauges for Metabo HPT 18V slide-type power tools. Each battery's 2.0Ah capacity gives up to 30% longer run time than the BSL1815X 1.5Ah battery, and the fuel gauge indicates the remaining battery power level. Each battery weighs 0.84 lbs, has a resin coating, and has multiplex protection circuitry against overload, overcharge and over-discharge. Each is covered by Metabo HPT's two-year lithium-ion battery warranty. Chargers are not included; compatible models are the UC18YSL3, UC18YFSL, UC18YKSL and UC18YTSL. • Four 18V 2.0Ah lithium-ion slide-type batteries (0.84 lbs each) • Fuel gauge shows remaining battery power • Resin coating; multiplex protection circuit • Two-year battery warranty • No charger included