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
The WFCO WF-8735-AD is the better RV converter charger overall, rated 2.8 to 2.2. The WFCO WF-8735-AD leads on features and value. The Progressive Dynamics PD4645V wins on output. The WFCO WF-8735-AD costs $98.16 less ($199.99 vs $298.15).
Progressive Dynamics PD4645V
#10 in Panel and drop-inFull review
A proven fix for a dead converter in an older Parallax, Magnetek or WFCO power center that still runs lead acid batteries.
Amazon $298.15$298.15
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-8735-AD for features (lithium mode, multi-stage charging, fan runs only as needed vs multi-stage charging) and value ($5.71 per amp ($199.99, 35 A) vs $6.63 per amp ($298.15, 45 A)).
- Choose the Progressive Dynamics PD4645V for 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 | WFCO WF-8735-AD | Progressive Dynamics PD4645V |
|---|---|---|
| Overall rating | 2.8/5 | 2.2/5 |
| Value 35% | 20 $5.71 per amp ($199.99, 35 A) | 11 $6.63 per amp ($298.15, 45 A) |
| Output 10% | 10 35 A | 30 45 A |
| Features 30% | 80 lithium mode, multi-stage charging, fan runs only as needed | 20 multi-stage charging |
| Warranty 25% | 25 2-year warranty | 25 2-year warranty |
Specifications
| WFCO WF-8735-AD | Progressive Dynamics PD4645V | |
|---|---|---|
| Charging | ||
| Output | 35 A | 45 A |
| Lithium mode | Yes | No |
| Multi-stage charging | Yes | Yes |
| Build | ||
| Build | Panel or drop-in | Panel or drop-in |
| Fan runs only as needed | Yes | - |
| Remote or display | No | No |
| Weight | 5.5 lb | 9 lb |
| Warranty | 2 years | 2 years |