Powermax 110 Volt to 12 Volt DC Power Supply Converter Charger for Rv Pm3-55 (55 Amp)

I couldnt be any happier with this purchase! Great quality American made product at a reasonable price. Does exactly what its supposed to do right out of the box. My 20 year old 45 amp converter went belly up, so I replaced it with this 55 amp unit. Unit was on my doorstep within 48 hours. Took about 30 minutes to install including time to drill a couple of new holes to accommodate the larger unit. House batteries were fully charged within 12 hours and system voltage has been floating at 13.1 ever since.

Make sure you hook the blue wire back up if it’s a replacement for RV!

Works great!!

Im rather pleased with this unit. I bought the 55amp version to replace the Magnetek 6345 (45 amp) converter in my 1996 Fleetwood. I pulled out the charger/converter version and added an outlet under the fridge to the side of where the original was. I could have cut the cord off but this was easier for me. Im planning to use it to charge a pair of 105 amp hour AMGs and I think it will do fine for that. With my clamp meter I was getting 20 plus amps into the battery I currently have which is about what I would expect. When its going Im getting 13.7 volts in the motorhome which is again what I would expect. I havent attempted to turn other items in the coach on and use the clamp meter to see what the most it puts out is but I see nothing to suggest less than the rated limits. I will update this if something changes as Im about to go on a 2 month trip. The one thing I will say as it wasnt easy to find online. If youre replacing the Magnetek as I did you will want to run the blue wire hooked up to the 12v fuse panel into the 12v lug the red wire is connected to.

You loosen 3 screws on the old one and unplug it. Put the wires back just like you took them out and plug it in. DONE 10 mins. I was a bit surprised that the exact brand and part number that I replaced 2+ years ago had already died. Im giving the same brand another chance. Its says RV so open your wallet.

Easy to install, the unit is very quiet, even with the fan running. Power is very very clean, my new 12v fridge runs great on it without the LED lights flickering like the other converter did.

I installed this in my RV to replace my factory converter. The factory converters are loud and inefficient. I installed this unit in my front cargo compartment and ran new 6 gauge wires directly to my batteries. As other reviews have stated the fan speed is not variable, but it does only turn on when needed. For example, my factory converter runs the fan at full speed when pushing 8 amps into the batteries, this unit can do over 8 amps without the fan running at all. Also, in my initial testing this thing pushed 3x the amps into the batteries as the factory unit. Strongly recommend this unit for mounting in a cargo area. This will allow my to charge the batteries much more quickly when dry camping and using the generator.

This was purchased to replace a single-stage charger/power supply in an older travel trailer. The older units bulk charge only design apparently contributed to shortening the lifespans of several (ruinously expensive) deep cycle batteries, something I didnt want to see repeated. This units three-stage charging should help address that issue. This unit was of slightly different dimensions than its open-deck predecessor, necessitating some engineering of the plastic enclosure, but that was known at purchase, and was not an issue. The fan-noise is quite reasonable, and is only active when needed. While I didnt open the unit to see its contents, the good quality of the metal case and exterior connections leads me to believe the the same quality is present electronically, an opinion supported by solid output voltage/amperage over two weeks of initial use.

Researched the options, and this fit the bill for the OEM charger in my trailer. Works great since then, been running for nearly a year, keeping the house battery topped. I did have to modify the the housing this fits into on the trailer since its a little deeper than the original. Otherwise, hookup with new wire was easy.

Super cool!!! Easy to hook up, great quality and charging my Lance cab over battery like a champ at 14.6 Volts. The Parallax power unit I had running my Rig burned out for the forth time since 1997 mind you, but I’m not spending the time or money for one of those again. So I bought this unit and relocated it to under my sink for better air flow and easy to replace if this unit ever goes out. Have size 8 AGW wire on hand because that what this unit requires and what size wire that should be used.