Bring the power you need to charge your DEWALT batteries wherever you travel with the DEWALT DW98109 vehicle plug-in battery charger. In order to enhance operation, an exclusive three-stage method is employed to power NiCd 7.2- to 18-volt batteries in just one hour. It features a one- to three-hour leveling technique, so every single cell receives full power and a continued charge to preserve power after the leveling is finished.