Will The 55A WF86FR Converter Power Center Charge My RV Batteries Faster Than The 40A Model?
Published 02/24/2026
Products Featured in This Question
Question:
I’m debating between the 40 amp and 55 amp version. Will I actually notice a difference in charge time?
asked by: Tyler
Expert Reply:
Good question, Tyler.
Yes - the WFCO RV converter power center # WF86FR 55A will recharge a battery bank faster than the # WF46FR 40A, especially during bulk charging.
That said, the difference is most noticeable when:
-You’re running dual batteries
-You’re using lithium
-You’re trying to recharge quickly during short generator/shore power runs
If you’re mostly plugged into shore power and running one battery, you likely won’t see a dramatic difference since it doesn't take a crazy amount of amperage to charge one single 12v battery.
Another thing to note is the different size and cutout requirements. The # WF86FR requires a larger rough opening of 12-3/16" wide x 11" tall, while the # WF46FR fits a smaller 10-3/8" wide and 7" tall opening.
What battery bank are you currently running?
Product Page this Question was Asked From
WFCO Auto Detect RV Converter and AC/DC Distribution Panel - 12V - 55 Amp
- RV Power Converter
- Converter and AC/DC Panel
- No Battery Mode Switch
- 12V
- 55 Amps
- AGM
- Gel
- Lead Acid
- Lithium
- Multi-Stage Charge
- WFCO
more information >
Featured Help Information
Instructions
Continue Researching
- Search Results: progressive dynamics rv power converter
- Search Results: 12v converter
- Search Results: black lug nuts
- Search Results: lug nuts
- Search Results: rv power converter
- Shop: PowerMax 30A AC Wireless Power Center - 55A DC Output - 12V
- Shop: WFCO Auto Detect RV Converter and AC/DC Distribution Panel - 12V - 55 Amp
- Shop: WFCO Auto Detect RV Converter and AC/DC Distribution Panel - 12V - 40 Amp
- Shop: Kenda Karrier KR53 ST205/75R15 Radial Trailer Tire with 15" Black Aluminum Wheel - 5 on 4-1/2
- Shop: Suspension Enhancement
- Video: Air Lift LoadLifter 5000 Ultimate Air Helper Springs Installation - 2016 Chevrolet Silverado 1500
- Video: Install: RoadActive Suspension Custom Leaf Spring Enhancement Kit on a 2018 Chevrolet Silverado 1500
- Video: Review of Progressive Dynamics RV Converters - Smart System Included - PD4060K
- Shop: Air Lift LoadLifter 5000 Ultimate Air Helper Springs with Internal Jounce Bumpers - Rear Axle
- Shop: RoadActive Suspension Custom Leaf Spring Enhancement Kit - Heavy Duty
- Shop: Progressive Dynamics 4000 Series RV Converter w/ Charge Wizard and AC/DC Distribution Panel - 60 Amp
- Search Results: hydraulic parts rv slide out parts
- Search Results: 12v switch
- Video: Review of WFCO RV Power Converter - Converter and AC/DC Panel - WF86FR
- Video: Review of Lippert RV Slide Out Parts - Replacement Hydraulic Power Unit - LC141111
- Video: Feature Breakdown: Replacement Slide Gear Motor Assembly for Power Gear Slides
- Video: The Low-Down on the Lippert Replacement Hydraulic Cylinder for RV Slide-Out
- Shop: Trailer Wiring
- Shop: Brake Controller
- Shop: RV Interior Lighting
- Q&A: How To Select Correct WFCO Power Center On 30A Shore Hookup In 2016 Heartland RV ?
- Q&A: What Is The Replacement Main Board Assembly For a WFCO WF-8900
- Q&A: What are the Gallons Per Flush on the Seaflo Fresh Water Electric RV Toilet SE95CR?
- Q&A: Is Progressive Dynamics 2000 Watt Inverter A Good Replacement For WF-5110R 1000W Inverter?
- Q&A: Do I Need Special Fuses Or Breakers When Installing New PowerMax Power Center Converter In RV?
on RV Power Converter
Tyler
2/24/2026
I just have a dual 100ah lithium setup. so I guess that's 200ah 12v?