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

Got our power supply in 3 days. Just what was needed.

Although this product lasted me about four years, can anyone explain how it burned up these two 40 amp fuses all of the sudden out of the blue? It operated flawlessly all this time and then the fuses actually melted and also melted the fuse sockets. At the time of failure it was powered with a 1,600 watt Predator generator - that has also ran many many hours flawlessly before and after these fuses burned up. Since the fuse sockets melted I am not going to replace the fuses just to see what might happen. Thoughts?

I used this unit to replace an 80 AMP Intellicharger in a 40 5th wheel travel trailer/toy hauler that is in year round use. The unit replaced had been severely damaged by a mysterious power surge on the 120v AC input along with several other appliances in the trailer. It is working perfectly and having no trouble doing what its supposed to do. If the Trailer were not on nearly continuous AC shore power I might have gone with a higher output PS/charger but this one does just fine at less than half the cost of the unit it replaced. I reserved one star in my rating because who knows how long it will last.

I use this professionally as an automotive technician. It allows me to supply a clean DC power supply to the vehicle while I perform sensitive tasks like control unit programming. Modern day system control units sometimes allow a programming operation only one time to a module. If communication is corrupted at any point, youve essentially bricked it. What I love best about this product is the battery charging feature. It was able to bring back old dead batteries that other chargers could not. It has very literally saved me money! Also, the 55 amp (for this model) crank assist feature is STRONG. Remember youll need to make up some leads for yourself if you intend to use it like I am. I cut up an old set of jumper cables.

I’ve used this for a couple months now and this was very easy to use and setup!

OK gang, everything went smoothly until I went to shove the new converter in place of the original WFCO. The new Powermax didnt fit!! Specifically, the mounting tabs on either side of the new Powermax converter prevented the new unit from fitting in the WFCO housing.......so, out came the saber saw with metal blade and off came the mounting tabs. It was a tight fit but all is good now. Dont forget to calibrate the Powermax voltage per the manual and so far on startup this 3-stage converter works as advertised. By-the-way, I live full time in a 2018 Coleman 26 Lantern pull trailer and I plan to do more boondocking in the future so Ill be relying on the trailer batteries more often including an 81-watt solar panel and a Honda eu2000i generator. Cheers All!

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.

De que dejo de funcionar y no me responden para mi garantia

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.

Got this last May for my camper. Worked great until last week when the voltage regulator went out. I called the company and they shipped me a new one in 3 days.