For Dewalt 20V fan, cordless fan powered by Dewalt 14,4V-20V Max/Cord DC battery, silent brushless fan, 270° head rotation, outdoor construction fan with 3 speeds, 4H timer, hanging hook. - Walmart.com
14.4V 2.0A Li-ion Battery Pack with Indicator for Dewalt Dcb140b - China Dewalt Battery, Rechargeable Battery Pack | Made-in-China.com