Progressive Dynamics PD4045CSV
The direct fix for a failed converter in a PD4045 power center, with lithium support built in.
Amazon $199.50$199.50
The Progressive Dynamics PD4045CSV rates 3.1 among panel and drop-in RV converter chargers; the WFCO WF-9845-AD rates 3.0 among standalone ones. The Progressive Dynamics PD4045CSV costs $40.49 less ($199.50 vs $239.99).
WFCO WF-9845-AD
#10 in StandaloneFull review
An easy drop in for an RV that already has a WFCO 9800 deck mount, with lithium detection built in. A safe default for a typical trailer.
Amazon $239.99$239.99
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.
Scores side by side
These two sit in different build classes (panel and drop-in and standalone), and each is scored against the reference points for its own class, so a rating says how well each does among its own build peers. How we rank explains each factor.
| Factor weight | Progressive Dynamics PD4045CSV | WFCO WF-9845-AD |
|---|---|---|
| Overall rating | 3.1/5 | 3.0/5 |
| Value 35% | 35 $4.43 per amp ($199.50, 45 A) | 24 $5.33 per amp ($239.99, 45 A) |
| Output 10% | 30 45 A | 30 45 A |
| Features 30% | 80 lithium mode, multi-stage charging, fan runs only as needed | 80 lithium mode, multi-stage charging, fan runs only as needed |
| Warranty 25% | 25 2-year warranty | 25 2-year warranty |
Specifications
| Progressive Dynamics PD4045CSV | WFCO WF-9845-AD | |
|---|---|---|
| Charging | ||
| Output | 45 A | 45 A |
| Lithium mode | Yes | Yes |
| Multi-stage charging | Yes | Yes |
| Build | ||
| Build | Panel or drop-in | Standalone |
| Fan runs only as needed | Yes | Yes |
| Remote or display | No | No |
| Weight | 3 lb | 5.2 lb |
| Warranty | 2 years | 2 years |