Moving New Powermax Converter to front bay

Indy Tim

Senior Member
Joined
Mar 5, 2011
Messages
195
Location
Indiana
I recently purchased a couple of Lifepo4 165ah batteries and a Powermax 75A converter to charge them. I want to put the new converter next to the batteries to reduce wire loss during charging and facilitate the higher amperage (50 to 75). The factory setup has the converter behind the false wall in the pass through and has 6ga wires to the DC fuse panel. The DC fuse panel then has 6ga wires running to the battery.
My question is do I need both sets of these wires or can I just attach the batteries directly to the new converter and utilize the the standard factory 6ga wire setup back to the DC fuse panel. Is their any need to have the converter directly attached to the DC fuse panel??
 
I'd say you can run your new converter straight to the batteries (using appropriate gauge wire for the length you need to run, fuse, etc.); and then just run the existing 6 gauge wire from the battery to the fuse panel (probably would want to fuse that too). Maybe consider if you want to install any more cut off switches too.

At least that is what I did.
 
I'd say you can run your new converter straight to the batteries (using appropriate gauge wire for the length you need to run, fuse, etc.); and then just run the existing 6 gauge wire from the battery to the fuse panel (probably would want to fuse that too). Maybe consider if you want to install any more cut off switches too.

At least that is what I did.
Thanks. I'll add a cutoff switch. The 6 gauge going to the fuse panel goes through the manufactures "resettable" breaker buss bar with a 50A breaker.
 

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You don’t need the extra set of wires to the converter. Your battery disconnect will no longer disconnect the converter from the battery but I like it that way.

That 50A auto reset breaker to the power distribution panel was also between your battery and converter before. Per RVIA standards there should be an auto reset breaker between your converter and battery and of course 50A won’t do it with a 75A converter. I’d suggest a 90A resettable breaker with a minimum of 4AWG wires between battery and converter. I just did a similar exercise but I moved my battery to my converter so the battery would be in the heated basement since it won’t charge below freezing. Here’s what I did
 

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