18V vs 20V Max Batteries Which is Better(1) NEW DEWALT DCB115 12V/20V BATTERY CHARGER. ALL TOOLS LISTED ARE NEW AND NEVER USED. DEWALT DCF880 20V MAX IMPACT WRENCH. Dewalt dcf880 20v cordless 1/2 impact wrench, (2) dcb203 batteries, charger pin please submit a best offer only if you are looking for more than one set. This item is in the category Home & Garden\Tools & Workshop Equipment\Power Tools\Impact Wrenches.