Worx WA3578 Cordless Power Equipment Battery, 20 V Battery, Lithium-Ion

Worx Cordless Power Equipment Battery, 4 Ah, Battery Chemistry: Lithium-Ion, Battery Voltage: 20 V, Suitable for: WORX WA3742 20 V Lithium Charger, or WORX WA3868 20 V Lithium Quick Charger20 V 4 Ah battery delivers up to twice the runtime of standard 2 Ah batteriesIdeal for when increased runtime is needed to power your 20 V and 40 V cordless Worx tools through the entire jobDelivers professional-grade, gas-like power with none of the emissionsEfficient Max Lithium Technology charges quickly and holds a charge longerDo it all with power share batteriesWorx Power Share intelligent batteries maximize power, performance and run time and are compatible with all Worx 20 V and 40 V tools, outdoor power and lifestyle productsFor great results, use with Quick Charger