The DEWALT FLEXVOLT 20V/60V MAX 12.0Ah Battery (DCB612) is a high-capacity, dual-voltage lithium-ion battery designed for DEWALT 20V MAX*, 60V MAX*, and 120V MAX* cordless tools. Featuring patented FLEXVOLT technology, it automatically switches between 20V and 60V to deliver exceptional power and compatibility. With 12.0Ah at 20V (or 4.0Ah at at 60V), it provides up to 8X the runtime compared to a DEWALT 1.5Ah battery (DCB201) in 20V MAX* tools, making it perfect for professionals and heavy-duty tasks. ?High Capacity: 12.0Ah at 20V / 4.0Ah at 60V, delivering 240 watt-hours of energy. Extended Runtime: Up to 8X longer runtime in 20V MAX* tools compared to DCB201 1.5Ah battery. 3-LED Fuel Gauge: Displays charge level for convenient monitoring. Durable Construction: Silicone-encapsulated module resists dust and debris for jobsite durability. Charger Compatibility: Works with all DEWALT 20V MAX* chargers.