I'm finally replacing my failing converter and am looking at the INTELI-POWER 9200 SERIES CONVERTER/CHARGER - 60 AMPS. My question is, my trailer currently has the WFCO 55 amp (yeah, yeah WFCO.....I get it), but since the Progressive unit is 60 amp and not a 55 amp, is that a problem? And in saying that, if the extra 5 amps is OK then could I choose the 70 or 80 amp unit or would there be no gain, or worse, would I potentially cause an issue by doing that?Also, my trailer has only one 15,000 AC unit but I want to add another 13,500 in the future in the bedroom. Would the increase in amperage help with that? This is a learning curve for sure. Thanks again guys. :)

I would stay with the 60 amp unit unless you are planning to enlarge the wiring between it and the battery. Typically the manufacturers use the minimum size wire that they can get away with and the voltage drop would probably limit your charging current to less that 55 anyway.The larger units would not cause any "issues" but would not provide any increase in value either.Changing the charger will have no impact on adding the second AC, but if your trailer service is only 30 amps you will not be able to run both at once.

How many batteries? Do you expect a fast charge from a generator? Flooded or AGM?No effect on the air conditioners unless you are connected on 30 amp.

You are just fine going with the 60 amp.

If you could make a diagram of how the converter is wired to the batteries in your RV, that might be helpful. If you were satisfied with the charging performance of your old converter (that is, you didn't have to spend long hours with the generator to charge the batteries on a regular basis), then 60A should be perfectly sufficient going forward.It's hard to make specific recommendations without more information about your use, your batteries, how your particular RV is wired up (wire gauges, lengths, fuse or circuit breaker locations and values....), your generator (if any), and so forth.

Sorry I left out so much information.....The batteries are two lead acid, I believe group 27 typical RV 12 volt batteries. They're condition?.....I'm not totally sure but I do keep them full of water and I leave the trailer plugged in all the time thinking the converter is floating them.The trailer is a 50 amp service.I dont know if they're large enough but I want to say the last time I checked the wiring between the batteries and the converter was pretty good size, like either 6 or 4 gauge.I cant comment about the charging time because I really dont boondock long enough to justify using the Onan 5500 generator to try re-charging the batteries. Plus we're pretty conservative with battery usage overall. Thought about adding a couple portable solar panels to help add time out on our trips but with all the technicalities involved, thats another topic I cant seem to wrap my mind around.The only times we will power up the generator if we need it for things like watching a movie or running specific high powered items like coffee maker or microwave, etc. I do my best to park in the shade to the AC isnt needed unless its crazy hot outside.If it'll help I'll figure out the actual wire diagram to and from the converter and batteries and report back.

Help with choosing proper converter amperage | Good Sam Community

DrewE
Explorer II
Nov 13, 2015
If you could make a diagram of how the converter is wired to the batteries in your RV, that might be helpful. If you were satisfied with the charging performance of your old converter (that is, you didn't have to spend long hours with the generator to charge the batteries on a regular basis), then 60A should be perfectly sufficient going forward.

It's hard to make specific recommendations without more information about your use, your batteries, how your particular RV is wired up (wire gauges, lengths, fuse or circuit breaker locations and values....), your generator (if any), and so forth.
newman_fulltime
Explorer II
Nov 13, 2015
You are just fine going with the 60 amp.
time2roll
Nomad
Nov 13, 2015
How many batteries? Do you expect a fast charge from a generator? Flooded or AGM?

No effect on the air conditioners unless you are connected on 30 amp.
Dave-Sparky
Explorer
Nov 13, 2015
I would stay with the 60 amp unit unless you are planning to enlarge the wiring between it and the battery. Typically the manufacturers use the minimum size wire that they can get away with and the voltage drop would probably limit your charging current to less that 55 anyway.

The larger units would not cause any "issues" but would not provide any increase in value either.

Changing the charger will have no impact on adding the second AC, but if your trailer service is only 30 amps you will not be able to run both at once.

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