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What is the Advantage of Replacing a 55 Amp Converter Charger w/a 65 Amp or 75 Amp Converter?  

Updated 03/07/2026 | Published 03/04/2026



Question:

I have a wfco 55amp Power converter. What is the advantage of replacing it with a 65,75 amp converter ? Will it make that much difference charging my lithium batteries ? Should I just replace it with the same 55 AMP and not mess with it ?

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Expert Reply:

Hey David, welcome back! The big advantage you'll gain using a 65 amp item # WF98FR or 75 amp item # WF48FR converter charger over a 55 amp item # WF38FR would be to charge your batteries faster. You would also be able to power more 12V DC appliances at the same time without draining your house batteries. All three of these converters are lead-acid (flooded, AGM) and lithium compatible.

The drawback is you'll need to upgrade the gauge of wiring if you go to a higher 65 amp or 75 amp converter. These converters require 6 or 4 AWG wire. So depending on what you currently have it may be more trouble than it's worth.

What kind of trailer or motorhome do you have?

You can add this information, along with any other questions you have, where it says Add Comment.

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Jerred H
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