Enhanced productivity: No battery memory effect ensures minimal self-discharge for maximum efficiency Superior performance: Craftsman 20 volt battery equipped with premium high-performance cells for optimal power delivery Charge status at a glance: Integrated 3-LED indicator provides clear state-of-charge feedback Broad compatibility:craftsman 20v battery charger supports all CRAFTSMAN V20 power tool and outdoor equipment batteries Extended lifespan: Advanced design offers greater cycle durability for longer battery service life 3 Year Limited Warranty Includes: (1) CMCB204 V20* 4.0Ah Lithium Ion battery pack, (1) CMCB202 V20* 2.0Ah Lithium Ion battery pack, (1) CMCB104 V20* Lithium Ion Charger