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

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

I absolutely love this power converter. Easily powers my 1100 watt amp and pioneer head unit. The fan is hecca silent and only kicks on when needed. I completely recommend this product.

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.

Works real good

So far so good, I use it to charge the two house batteries and all the other dc stuff in the bus,If you get an over load like I did due to my wiring error it shuts unit down an says OL ,then you just power it down unplug and restart once your wiring is good again ,It puts out 3 separate charge amounts allowing constant power to what needs juice, the 14.9 volts for house batteries ,Im pretty happy with the unit ,the fan tends to run a fair bit but its not noisy and hasnt changed since Ive had it and its ran for months non stop.

This converter is a replacement for one that failed in my RV. It arrived on time and I promptly removed the old one and installed this one. It was a little effort to install it since the base was not quite the same size as the previous one and the space it sits in is small and difficult to work in. But after testing it and installing it, it is doing a great job keeping my 12 volt system fully charged and functional.

My original was narrow vertical mount and a defunct company. I was able to have enough space to floor mount this near original area. It seems to be doing the intended job of keeping the coach batteries charged and the rest of the 12 volt system up proper level. The noise level of the cooling fan is quite minimal and actually an assurance that it is working. The 55 amp unit was considerably less expensive than other makes of same amp range. So time will tell if it is less expensive or cheap junk. Ive had it only a couple months; so far, so good. Id give it 5 stars if it would create its own power !!

Easy to install. Solved my dimming issues with the 12 volt system and undercharging of the battery. Was a replacement to the OEM WFCO unit that didn’t last a full year of usage.

Loud noise but works great

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.