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

(1776 Reviews)

Price
$169.00

Quantity
(10000 available )

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99 Ratings
76
16
3
2
2
Reviews
  • Justin Flaute

    > 3 day

    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.

  • jeffreaux

    Greater than one week

    perfect for DIY! easy install, all contact points labeled. works great.

  • Not great

    > 3 day

    Just Doesnt charge very fast or well it seems. Pretty disappointing.

  • Torrey Kris

    05-06-2025

    So far it has done as should. Very pleased!!! We installed it on our boat to keep the battery charged and run the 12v system while in the harbor. Working great. Could not be happier!!!

  • Eskimoose

    > 3 day

    Upgraded my RV house battery to a 100Ah solar-type SLA / AGM deep cycle battery and learned they need 3 stage charging. The converter in my RV is a very old 2 stage charger. Talked to the battery maker support team and they said my converter would not hurt the battery but that it would never charge the battery over 80 to 85% of full since it didnt have the 14.6VDC mode. So I removed and replaced my old RV converter with this unit and it works great! I bought a battery monitor so I can watch the rate of discharge in detail so I know when to fire up the generator or plug into shore power.

  • Albert Crocker

    > 3 day

    Took a minute to delete a power change switch. (Deleted switch).

  • 04Blackram

    > 3 day

    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.

  • Scott

    Greater than one week

    I got this to replace my cheap supposedly 3 stage converter that only charged at 13.6V no matter what. This converter works as expected, 14.6 when batteries are low, 13.6 when filling up and 13.1 float. When the fan runs its not silent but not the loudest thing Ive heard either. Im sure this will help me recharge faster when I am boondocking on generator.

  • Deborah D.

    > 3 day

    I ordered this converter to replace the giant OEM converter that was sucking our house batteries dry in our 1986 Foretravel Grand Villa Barn Find restoration project. The install was straightforward and simple. I have watched the converter for about a week now and it is keeping the batteries very stable and functional. I have attached a picture to show the compartment that will be an Auxiliary electronics bay. Eventually this will mounted on an aluminum slide out tray for servicing or additional wiring. Although the old converter was a 75 Amp converter, I seriously doubt that the old converter would push the 75 amps, so in this instance, I opted for the 55 Amp model. Under full load, the Powermax is more that adequate. Also the fan noise is about 80 decibels less that the original. Its fan is temperature controlled and is not much more than a whisper when on. the old converter sounded like a box fan from the minute it went on shore power and ran constantly. My thought is: If you are looking to replace your old battery burning converter, look no farther. The Powermax converters are dependable, quiet and will do the job you need quite admirably.

  • Tom

    > 3 day

    I am using the inverter to charge 2 deep cycle batteries for use in a small cabin in the woods. The cabin utilities rv 12vdc appliances, water heater, water pump, refrigerator, furnace, exhaust fan, usb outlets and lighting. The 2 batteries deplete to about 40% in 24hrs and using generator 110vac power, the inverter will fully recharge the batteries in about 2-3hrs. The inverter puts out very little heat and the fan only runs periodically for a minute and then shuts off. The inverter makes no sounds except while the fan is running. The only downside is the green green light which indicates the inverter is powered by AC voltage. Its fairly bright.

The PowerMax PM3 Series 55 Amp RV Power Converter takes 110Vac power to 12Vdc power to charge a battery and/or power 12V equipment. With our state of the art 3 Stage Smart Charging and adjustable power supply modes, the PowerMax AC to DC power converter/battery charger are engineered with the user and variable environmental conditions in mind. They will fully charge and maintain any battery type while providing very clean DC Power. Ideal for use in RV, Automotive, Boat, Car Audio, or any applications where battery charging and/or 12V power is needed. The PowerMax PM3 Series are available in a wide range of amperage sizes, and with 24V, 48V versions and 12Vdc – 220Vac models we can fit every power requirement. PM3 Series Converters can also be wired in Series or Parallel to reach even higher power outputs. Compatible with wfco wf-9855 wf9855

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