An easy drop in for an RV that already has a WFCO 9800 deck mount, with lithium detection built in. Pick it for a big battery bank if you can give it a 20 A outlet.
Amazon $344.99The WFCO WF-9875-AD is the better RV converter charger overall, rated 3.3 to 3.2. The WFCO WF-9875-AD leads on output. The WFCO WF-9865-AD costs $40 less ($304.99 vs $344.99).
An easy drop in for an RV that already has a WFCO 9800 deck mount, with lithium detection built in. Pick it for a big battery bank if you can give it a 20 A outlet.
Amazon $304.99Prices 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-9875-AD for output (75 A vs 65 A).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every standalone RV converter charger; a clear win is highlighted. How we rank explains each one.
| Factor weight | WFCO WF-9875-AD | WFCO WF-9865-AD |
|---|---|---|
| Overall rating | 3.3/5 | 3.2/5 |
| Value 35% | 33 $4.60 per amp ($344.99, 75 A) | 32 $4.69 per amp ($304.99, 65 A) |
| Output 10% | 90 75 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-9875-AD | WFCO WF-9865-AD | |
|---|---|---|
| Charging | ||
| Output | 75 A | 65 A |
| Lithium mode | Yes | Yes |
| Multi-stage charging | Yes | Yes |
| Build | ||
| Build | Standalone | Standalone |
| Fan runs only as needed | Yes | Yes |
| Remote or display | No | No |
| Weight | 6.8 lb | 6.2 lb |
| Warranty | 2 years | 2 years |
