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

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.

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

The PowerMax PM3-55 worked well on the bench and charged my new AGM batteries. I like the fact that the voltage is adjustable. There is a tiny switch that lets you adjust a fixed voltage (set with a small trimpot next to the switch). Important note: The adjustment affects the voltages on either setting of the switch (including the normal setting which affects the voltages during the 3 stages of charging; Bulk, Absorption, and Float), but either way the adjustability is a plus ! The unit did not quite fit (as an exact replacement for the WF-8955 Converter/Charger) in my sons RV (very close though, and probably could have made it work with slight modification). Since this was intended as an upgrade (and the original was still working), we decided to leave well enough alone and leave the original in place. In any case, Im sure I will be able to make use of it as a nice charger for my car batteries when needed.

This item has to have a constant power voltage coming into it of 110 to 120 to keep your care battery charged

Works real good

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

Dont pay extra for faster shipping, it will not make it on that date. It came on the regular date if I had not payed more. Product is working great thou, install was easy.

The length and width were ok but depth of my distribution panel was short. I was able to cut off one side of mounting feet and now is ok. The 3 stage rate is exactly as specified. The fan noise is noticeable but not excessive. Very satisfied with operation at this point.

Works like a Champ on our RV

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