Can you provide some more info about the recharger ?
I found it at Harbor Freight several years ago, what it does attaches to a full size propane tank then you attach a smaller tank. What I bought is called "EZ FILL PROPANE COUPLER" Walmart probably carries it now as well as sporting stores. It is one piece that screws on 20-40 gallon tanks. Trying to read the fine print. You attach this coupler to the big tank and then wrench tighten it. Screw on the smaller tank hand tight. You use the main tank valve to control the flow. It says it take about minute to refill each tank. http://maccoupler.com/
I just did a Google search and found several different brands and prices that do the same thing. There is even a YouTube video.