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 and the WFCO WF-8955-AD are evenly matched, rated 3.1 and 3.1. The WFCO WF-8955-AD wins on output. The Progressive Dynamics PD4045CSV costs $75.49 less ($199.50 vs $274.99).
WFCO WF-8955-AD
For an RV whose WF-8900-AD power center has failed or needs lithium support, as an exact fit replacement. Choose the amperage your RV shipped with or one step up.
Amazon $274.99$274.99
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.
Which should you buy?
- Choose the WFCO WF-8955-AD for output (55 A vs 45 A).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every panel and drop-in RV converter charger; a clear win is highlighted. How we rank explains each one.
| Factor weight | Progressive Dynamics PD4045CSV | WFCO WF-8955-AD |
|---|---|---|
| Overall rating | 3.1/5 | 3.1/5 |
| Value 35% | 35 $4.43 per amp ($199.50, 45 A) | 28 $5 per amp ($274.99, 55 A) |
| Output 10% | 30 45 A | 50 55 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-8955-AD | |
|---|---|---|
| Charging | ||
| Output | 45 A | 55 A |
| Lithium mode | Yes | Yes |
| Multi-stage charging | Yes | Yes |
| Build | ||
| Build | Panel or drop-in | Panel or drop-in |
| Fan runs only as needed | Yes | Yes |
| Remote or display | No | No |
| Weight | 3 lb | 8.6 lb |
| Warranty | 2 years | 2 years |