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

Easy to install and simply works great. Can have all 12v lights in my travel trailer on and they never run down when the unit is on - which was not the case with the original unit i had. This Powermax is really a great repalcement unit

Works well

Used this to replace the one on my 20 year old RV.

So far so good I bought this to replace my old RV converter that was boiling my batteries pretty badly and this things worked like a charm for the last month. This thing is QUIET! No more incessant humming from the old piece of crap I had. Will update if anything changes.

After I had a professional come out & fix my wiring problem, the unit works fine.

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

This was exactly what I needed. Easy to install, I’m not a very “handy” gal and was able to change it out myself.

So far - Very quite and works perfectly for powering up the 5th wheel 12volt system. This unit is rated 10 amps higher than the one I removed that had burned up. My 5th Wheel has a battery disconnect switch and I am using this with the batteries completely disconnected. The only power is it having to supply at this point is the solenoid that connects the power distribution station to the rest of the trailer. This is because I am sure the batteries are old and have internal shorts. I cannot get them to take a charge at all. I dont want to spend 200.00 on another set of batteries that will just be sitting for the next 8 months. That is why I have the switch set to full disconnect from batteries. Considering the local camping supply outlet wanted 100 bucks more than this one (for a 55amp unit), I decided to test this unit out. I read the review about the actual output compared to the rated power output being only half of what the sticker states - but when I took out my old 45 amp unit, the sticker on the bottom that had the Quality Control testing specs hand written on it were approximately half of what the sticker said its max rated output was too. So I thought Ill give it a shot. My needs are not any where close to 45/55 amps for the purpose Im using it for. Hope this helps

Easy install and no noise at all, works great in our 5th wheel

Install was easy. Mounting holes were same spacing but 1/2” wider then old one. No biggie. You do hear the fan kick on and off if all is quiet in motor home. (But how often is that). The fan should allow for longevity. I like the constant even voltage, and keeping my batteries charged. It does still work if battery is removed.