WFCO WF-9865-AD
#8 in StandaloneFull review
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 $304.99$304.99
3.0/5
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.
- 45 AOutput
- YesLithium mode
- StandaloneBuild
- 2 yearsWarranty
Check price at Amazon$239.99
Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Switches to a lithium profile on its own, so swapping to LiFePO4 needs no settings
- Full output down to 100 V AC, so it keeps charging on a weak campground pedestal
- Bolts in where most RVs already have a WFCO 9800 deck mount unit
- Small enough to tuck under a bed or in a bay
Cons
- Two year warranty, shorter than some rivals
- No remote or display; you read status from an LED on the unit
- Amazon listing is from a parts seller; WFCO voids the warranty for unauthorized internet sellers, so keep proof of purchase
The WFCO WF-9800-AD family
Every WFCO WF-9800-AD model we rank, smallest first. Ratings compare each against its own build.
| Model | Output | Rating | Price |
|---|---|---|---|
| WFCO WF-9845-AD (this one) | 45 A | 3.0/5 | $239.99 |
| WFCO WF-9855-AD | 55 A | 3.2/5 | $248.99 |
| WFCO WF-9865-AD | 65 A | 3.2/5 | $304.99 |
| WFCO WF-9875-AD | 75 A | 3.3/5 | $344.99 |
How it scores
The rating comes from 4 measured or published factors, each scored 0-100 against fixed reference points for its build. How we rank explains each one.
Specifications
| Model number | WF-9845-AD-CB |
|---|---|
| Charging | |
| Output | 45 A |
| Lithium mode | Yes |
| Multi-stage charging | Yes |
| Build | |
| Build | Standalone |
| Fan runs only as needed | Yes |
| Remote or display | No |
| Weight | 5.2 lb |
| Warranty | 2 years |
Alternatives in this build
WFCO WF-9855-AD
#9 in StandaloneFull review
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 $248.99$248.99
IOTA DLS-90/IQ4
#11 in StandaloneFull review
A rugged, regulated converter for owners who value clean DC power and want to add the right charge controller themselves. The built in IQ4 makes it a complete lead acid charger.
Amazon $379.99$379.99
Compare
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