PowerMax RV Converters Ranked

Last updated: November 2, 2026

3 PowerMax RV converters ranked. Each one is scored and ranked against every brand in its build, so "#3 mid-size" means third of all mid-size RV converters here, not third among PowerMax's own.

PowerMax makes 3 current RV converters: 3 standalone. Prices run from $137 for the PowerMax PM3-55LK to $189 for the PowerMax PM4-100. Its best-rated model: the PowerMax PM4-100 (#1 of 15 standalone, rated 4.0).

Prices were last checked November 2, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.

PowerMax RV converters 3

  1. PowerMax PM4-100
    #1 standalone4.0Full review

    A low cost standalone converter for owners who are comfortable setting a charge voltage by hand. Its high output suits a large lithium bank.

    Amazon $189
    $189
    100 AYes2 years
  2. PowerMax PM4-75
    #2 standalone3.9Full review

    A low cost standalone converter for owners who are comfortable setting a charge voltage by hand. Its high output suits a large lithium bank.

    Amazon $149
    $149
    75 AYes2 years
  3. PowerMax PM3-55LK
    #4 standalone3.6Full review

    A low cost standalone converter for owners who are comfortable setting a charge voltage by hand. A common budget replacement for a WFCO 9855 class unit.

    Amazon $137
    $137
    55 AYes2 years

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