It might be the right time to start working on that van conversion or vintage rv rehab. I have 55amp power converter. Just what you need for your van or rv conversion. It converts 110v to 12v. I got this for a battery conversion on my 5th wheel. The converter is compatible with lithium but will not charge lithium fully, in other words I bought the wrong converter. This converter works for lead acid battery be it 12v setup or a 6v. I used it for a one week. I am selling it for $85.00 it sells on amazon for $133.00