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PM3 MBA Series

PM3 Series MBA

The PowerMax PM3 MBA Series lower tray RV converters are designed to convert 110Vac power to 12Vdc power, which can be used 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 is 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. This makes them ideal for use in an RV to replace the Lower Section Converter tray in a Power Distribution Center.

The PowerMax mba series is an exact replacement for ANY WFCO 8900 Series MBA and other brands of Lower Tray Converters. By using the PowerMax PM3 12V mba Series lower tray RV converters, you can ensure that your RV’s battery is charged efficiently and that your 12V equipment is powered reliably

The PM3 12V Series is Compatible with LiFEPO4 batteries – Used in the Fixed mode they are optimized to charge a 12V battery FAST while ensuring a long battery lifespan. Need to charge a large bank quickly between uses in an RV Power Distribution Center. We offer several different amperage sizes to fit all requirements!  A 55 Amp charger will charge a 12V 100Ah battery in <2 hours, and a 200Ah battery bank in <4 hours. Need more power, our 12V converters can be Paralleled to provide even more charging power for those of you who need to charge FAST and play HARD

Recommended by many of the popular Lithium Battery Manufacturers such as Battle Born, ReLion, Lithioncs, Life Blue, and more!



  • An exact replacement for the WFCO 8900 mainboard converter including the WF 8955 mba
  • Available in 35, 45, 55, 60 and 75 Amps
  • Built-in 3 Stage Charging and single output modes
  • Works with all Battery Types including Lithium, Lead Acid, AGM
  • Output voltage adjustable from 13.0 Vdc to 16.5 Vdc
  • Reliable, Safe and Clean AC/DC power
  • 2-year warranty
  • Reverse Polarity, Overload and Thermal Protection

Additional information

Weight N/A

35 Amp, 45 Amp, 55 Amp, 60 Amp, 65 Amp, 75 Amp

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