Progressive Dynamics PD4560AV
For a 50 A coach or a conversion build that needs a whole new distribution panel with a converter that can charge lithium.
Amazon $394.14$394.14
2.8/5
For an RV with a tired WFCO style power center when you want lithium support but would rather not rewire the breaker panel.
- 55 AOutput
- YesLithium mode
- Panel or drop-inBuild
- 2 yearsWarranty
Check price at Amazon$286.96
Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Upgrades an old panel converter to lithium detection without replacing the breakers and fuses
- Kit includes the mounting bracket, so it fits an existing power center opening
- 55 A covers most travel trailers and fifth wheels
Cons
- Costs about as much as a complete WFCO power center
- WFCO does not list which panels it fits, so check yours before ordering
- Two year warranty
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.
Specifications
| Model number | WF-8955-AD-REP |
|---|---|
| Charging | |
| Output | 55 A |
| Lithium mode | Yes |
| Multi-stage charging | Yes |
| Build | |
| Build | Panel or drop-in |
| Remote or display | No |
| Weight | 9.2 lb |
| Warranty | 2 years |
Alternatives in this build
WFCO WF-8735-AD
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.
Amazon $199.99$199.99
Progressive Dynamics PD4655V
A proven fix for a dead converter in an older Parallax, Magnetek or WFCO power center that still runs lead acid batteries.
Amazon $304.21$304.21
Compare
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