The battery powered 20 in walk-behind scrubber is a perfect fit for contract cleaners, retail, school and healthcare cleaning needs. The easy-to-operate auto-scrubber provides practical cleaning performance of 13200 sq-ft/hr. The BD 50/50 C Bp Classic features two 12 V, 100 Ah AGM batteries with shelf charger, 20 in pad driver, curved squeegee, Home Base rail system and battery level and hour display. Three modes of cleaning, normal mode, scrubbing and vacuuming. Intense mode, Scrubbing only. Vacuum mode, vacuum only. Home base rail allows user to attach manual cleaning tools for quick touch-up and less visits to the supply closet. Productive. Efficient and simple to operate.