The DEWALT DCB547 XR FlexVolt Slide Battery 18/54V 9.0/3.0Ah Li-ion.
Experience the flexibility and endurance of DEWALT’s XR FLEXVOLT 9.0 Ah battery—the world’s first battery to automatically convert between 18 V and 54 V. With massive 162 Wh capacity, it delivers up to 6× longer runtime than standard 18 V batteries, while powering your heaviest tools as if they were corded. Its rugged build and smart protection systems ensure long-lasting performance without compromise.