Progressive Dynamics charger/converter for 2 Trojan T-105’s

IMHO buy the biggest PD unit you can run with your generator. 65/75A is about the limit for most 2000VA generators.

and if the trailer came with the (in)famous WFCO generator, yes going to a PD is a good idea. If so, put in the PD drop in replacement, good to go, I think they make a 55A and 65A drop in replacement.

Now if your generator is 3000VA or bigger, then you could get a 100A PD mount it in the pass through, and be good to go.