Powermax PM3-55LK 55 Amp 12 Volt Power Supply (Replacement for WFCO WF-9855) Battery Charger with 3 Stage Smart Charging Mode, Built-in Cooling Fan and LED Indicator Light, Lithium Compatible

Two RV -Bought TWO. One mounted in the living room. The fan is so loud I had to unplug it. The second was mounted in a 5th wheel Basement and it could still be heard in the living quarters. I WISH IT WHERE NOT SO for everything else including the price was great.

I installed this in a travel trailer, plugged in to a 120 Volt outlet. Used 4 of 6 gauge wire to connect directly to LiFePo4 battery. Although none of these converters output power as they are rated, this PM3-55LK put out 45+Amps. It immediately output almost 700 W until the battery was 98% charged. The voltage increased to 14.6 V As the average decreased to very low. Then continued to power my 12 V appliances without discharging the battery. This device worked perfectly for me.

Very happy with this purchase fixed my issues with my rv

I use this unit as a solar charger for a backup system. It installs easily and it has a very high build quality. Since it is being used for a back up it will probably not get a lot of use, However I expected it to behave flawlessly when I need it to.

Let me start off by saying as an avid bowfisherman, we are very hard on our equipment.. I have had 7 or 8 over the years, upgrading and replacing. I have one hooked up to my work bench to Power my 12v audio system and a power port for working on electronics, and 2 in my pontoon for my 24v troller. Ive never really had any issues with the powermaxes themselves, especially for what Ive put them through on my boats lol.

Quick and easy to use charger, use it for multi cars in a body shop. works great.

Just got yesterday a week ahead of when they said and I hook up today works looks great

Out of the box, set at 14.77v, yiur results may vary, but mine was ready to go.

This converter replaced the blown one in our camper perfectly. Only thing necessary to use it was to add an outlet to plug it in which was way less expensive than buying the original replacement part. And in doing so we didnt alter it so as to void the warranty. We have been using it for weeks now with no problem at all...very happy with this unit. I forgot to take a photo after my husband installed it or Id share his handiwork.

I was able to adjust the voltage level up so that the unit will pump close to rated load into the house batteries during bulk charge phase. The original 55A converter would only pump out 10-20 amps during bulk charge due to the low upper voltage limit and the fact the unit is located over 20 feet away from the house batteries and Fleetwood only ran 6 AWG wire to the unit. The small wire causes big voltage drops at the battery with currents over 15-20 amps. This unit allowed me to adjust for that. Also has a manual mode that allowed me to bump the voltage way up for several hourse to due a true reconditioning on the house batteries. Have to use carefully to avoid overcharging and boiling off the batteries.