Name: Progressive Dynamics PD4655V
Brand: Progressive Dynamics
Price: 304.21 USD

A proven fix for a dead converter in an older Parallax, Magnetek or WFCO power center that still runs lead acid batteries.

Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.

Pros

Fits the opening of the Parallax/Magnetek 6355, Parallax 7355, 8355 and 7155, and WFCO 8955 power centers, so the breakers and fuses stay put
Charge Wizard picks boost, normal and storage modes so a stored RV does not boil its batteries
Wizard mode button lets you force a boost charge or check that the converter is working

Cons

The Progressive Dynamics PD4600 family

Every Progressive Dynamics PD4600 model we rank, smallest first. Ratings compare each against its own build.

Model	Output	Rating	Price
Progressive Dynamics PD4635V	35 A	2.0/5	$283.60
Progressive Dynamics PD4645V	45 A	2.2/5	$298.15
Progressive Dynamics PD4655V (this one)	55 A	2.4/5	$304.21

How it scores

The rating comes from 4 measured or published factors, each scored 0-100 against fixed reference points for its build. How we rank explains each one.

For an RV whose WF-8700-AD power center has failed or needs lithium support, as an exact fit replacement. A budget pick for a small trailer.

$199.99

For an RV with a tired WFCO style power center when you want lithium support but would rather not rewire the breaker panel.

$286.96

A proven fix for a dead converter in an older Parallax, Magnetek or WFCO power center that still runs lead acid batteries.

$298.15