Power your Hoover® Cordless products with the ONEPWR™ Battery System. From hard floor cleaners to vacuums, leaf blowers, hand vacuums and more, the ONEPWR™ Battery System has the right battery to power any cleaning job. The 4Ah battery is designed to be compact and lightweight to reduce user fatigue while optimizing maneuverability. With lithium-ion battery technology, you get long, lasting fade-free power and runtime to tackle any job, anywhere.