iTouchless To Make Life Easy

Is the WOOT AC Adapter compatible with the IT16RB11 16 Gallon Dual Compartment Recycle Can?
The IT16RB11 can also be powered by 4 D size batteries - just like the cans that ARE compatible with the WOOT AC adapter. Isn’t this equal to 6 volts, and the same?
The manufacturers website make me think this one - http://www.itouchless.com/ac-adaptor-for-it16res.html might be necessary since it is listed as “Compatible with IT16RES model only”.