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 $248.99The WFCO WF-9855-AD rates 3.2 among standalone RV converter chargers; the WFCO WF-8965-AD rates 3.1 among panel and drop-in ones. The WFCO WF-9855-AD costs $89.96 less ($248.99 vs $338.95).

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 $338.95Prices 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 (standalone and panel and drop-in), 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 | WFCO WF-9855-AD | WFCO WF-8965-AD |
|---|---|---|
| Overall rating | 3.2/5 | 3.1/5 |
| Value 35% | 34 $4.53 per amp ($248.99, 55 A) | 26 $5.21 per amp ($338.95, 65 A) |
| Output 10% | 50 55 A | 70 65 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
| WFCO WF-9855-AD | WFCO WF-8965-AD | |
|---|---|---|
| Charging | ||
| Output | 55 A | 65 A |
| Lithium mode | Yes | Yes |
| Multi-stage charging | Yes | Yes |
| Build | ||
| Build | Standalone | Panel or drop-in |
| Fan runs only as needed | Yes | Yes |
| Remote or display | No | No |
| Weight | 5.5 lb | 9.3 lb |
| Warranty | 2 years | 2 years |