Dewalt dcb090 usb charger 10 8 14 4 18v li ion dewalt dcb090 xj this 10 8 14 4 18v usb charger from dewalt has been designed to transform your xr battery into a portable charger with two usb outlets allowing charging of a wide range of small electronic devices it has multi voltage compatibility with 10 8 14 4 and 18v xr battery packs while also fitted with a bright highly visible state of charge indicator dewalt dcb090 xj usb charger 10 8 14 4 18 volt li ion