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Can The PowerMax AC to DC Converter PM44VR Be Used With Lithium Batteries?  

Updated 09/14/2026 | Published 09/08/2026

Question:

It says that you can use this converter with Lithium batteries I have LiFe4 batteries. How would you set this up to work with those?

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Expert Reply:

Hi Charles!

You can indeed use the PowerMax AC to DC Converter w/ Built-In 3-2-1 Stage Battery Charger - 12V - 60 Amps # PM44VR with LiFe4 batteries!

To do that, you will want to set in fixed mode, with the unit off. Then, move Switch A, left to "Fixed Voltage". Next, plug the unit into 110V power. Then you just need to turn Switch B gently upward or downward to adjust the voltage between 14.2v to 14.6v and you are good to go! I included an image that helps designate the switches as well. Oh and they call it Switch B, but it's really a knob that you will turn with a Philips screwdriver.

What kind of trailer/camper are you looking at putting this in?

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Lazer S
Switch Locations On PM44VR
Switch Locations On PM44VR
(click to enlarge)

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