This converter replacement is specific to my 55 amp model. There are several others that use the same type, just different Amps.

There was plenty of space to get them into the box, although you would need to remove the center battery to access the other two.

This is the battery that I used. There are other examples of similar size from other vendors that would work. And no, these do not have a low temperature charging cut-off protection circuit in the BMS. I usually remove the batteries for the winter, so I will just put an older AGM into it for the cold season. Besides, the battery box is not going to go below freezing while we are in the camper, and if it does I'll just disconnect from shore power to protect them.
