What Euphoria said in post #9. I just replaced our Parallax 7345 which was still working but which I also suspect of diminishing our battery life. Also, if circumstances permit us to go to Quartzsite this year I do not want to do an extended boon docking trip with that old converter.
Go to Best Converters and get a PD4645VL 4 stage charge converter and the $15 pendant. The pendant keeps you from having to replace the fuse panel although I did so just to benefit from new solders and new soldering technology. Take lots of photos and notes prior to pulling things apart and then follow instructions pertaining to replacing the converter model you have. I did have to reroute some wiring entering the bottom of the fuse panel box to come in over the top of the fuse panel which entailed punching out cutouts on the back of the box. All eminently doable.