PD9130 replacement - Fiberglass RV

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Old 07-29-2019, 12:49 PM   #1
Junior Member
Name: Marc
Trailer: Scamp
Posts: 3
PD9130 replacement

Hi everyone,

I'm looking to replace my Progressive Dynamics converter PD9130 that stopped working.

I have a Scamp 19 and according to what I read I should stay between 30 and 40 amps for a new converter, to avoid wiring and charging issues with the battery, is that right ?

I found the PowerMax PM4 35 amps on Amazon, which is way cheaper than the PD9230... Is it a good converter or I should stay with PD ?

Many thanks,

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Old 08-04-2019, 12:53 AM   #2
Name: Adam
Trailer: 2014 Lil Snoozy
Posts: 50
This is a good deal on a warehouse unit for $79, I've been super happy with 90% of my warehouse deal purchases.


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Old 08-04-2019, 12:57 AM   #3
Name: Adam
Trailer: 2014 Lil Snoozy
Posts: 50
That having been said, I purchased this unit and had it in my motorhome:


It's a PM3 55amp unit. I was happy enough with it that I purchased a 25amp 24V version for another project so that tells you how I felt about it after having done a fair amount of research. I was pleased with it in my motorhome and it was a nice upgrade though I've never had the Progressive Dynamics as a comparison.

Oh and I'm fairly certain they all have a similar charging profile, as a general rule there is never harm in having more amps than you need other than if it were say a breaker designed to protect the wiring. I wouldn't get too much more than you need either but this unit is just meant to power your DC system and charge your batteries when plugged in so having more amps likely won't harm or help. For example, if you were going to do an upgrade later so you chose a larger unit now there wouldn't be any harm in that.

I have a power supply in my computer that's designed for twice the load, I normally oversize to run things at half their rated ability. Even my grid tie inverters are 1,000 watt but only have 600 watts of solar to them. Again, confirm this information on your own but that's why I tend to do things.
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Old 08-05-2019, 04:52 AM   #4
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Joe MacDonald's Avatar
Trailer: Trillium
Posts: 902
Pd are pretty solid units ,have you checked the fuses at the rear of the converter?
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