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 is the better RV converter charger overall, rated 3.1 to 2.8. The Progressive Dynamics PD4045CSV leads on value and output.
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
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 Progressive Dynamics PD4045CSV for value ($4.43 per amp ($199.50, 45 A) vs $5.71 per amp ($199.99, 35 A)) and output (45 A vs 35 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-8735-AD |
|---|---|---|
| Overall rating | 3.1/5 | 2.8/5 |
| Value 35% | 35 $4.43 per amp ($199.50, 45 A) | 20 $5.71 per amp ($199.99, 35 A) |
| Output 10% | 30 45 A | 10 35 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-8735-AD | |
|---|---|---|
| Charging | ||
| Output | 45 A | 35 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 | 5.5 lb |
| Warranty | 2 years | 2 years |