WFCO WF-8955-AD-MBA Converter Is Showing Green Light When Charing Lithium Batteries
Updated 06/26/2026 | Published 06/18/2026
Question:
Purchased your WFCO AD MDA converter for my lithium batteries in my gulfstream 24 foot conquest motorhome. Took the charge down to 30 and recharged. Still green. Didn’t turn blue??
asked by: Richard H
Expert Reply:
Hey Richard, thanks for reaching out. If the WF-8955-AD-MBA # WF76FR is still showing green after you installed it and discharged the batteries to around 30%, the first thing I'd check is whether the converter is actually seeing the batteries as lithium. The auto-detect WFCO boards don't switch to lithium mode instantly. They have to observe the battery voltage and charging behavior over a period of time before they'll change modes, and sometimes that can take several charge/discharge cycles.
So, I wouldn't panic quite yet. I'd put a meter on the batteries while the converter is actively charging and see what voltage it's actually producing. That'll tell us a lot more than the LED color.
What charging voltage are you seeing at the battery terminals when plugged into shore power?
(click to enlarge)
Richard H.
6/23/2026
So Jesse, he also set the batteries up with the neg from battery 1 neg to the neg on battery 2 then to the neg on smart shunt where had both negs individually from each battery to the shunt. Either way ok??
Jesse M.
6/24/2026
Lloyd
6/26/2026
Hi Richard I installed this converter in my lance trailer a few months ago, along with a 320ah LITIME battery. I can’t see the lights, but it has been working flawlessly charging my battery to 99% every time, which is good because you don’t want to charge lithium to 100%. If your battery has blue tooth I would just go by what that’s telling you. I also would recommend installing a smart shunt which you can get from Etrailer, ( they can recommend which one to get) it gives you even more detailed information on how your battery is doing than the BMS. Happy camping hope this helps Lloyd
Product Page this Question was Asked From
Replacement Main Board Assembly for WFCO Auto-Detect RV Power Centers - 55 Amp
- Accessories and Parts
- Power Converter
- Board Assembly
- 55 Amp
- WFCO
more information >
Featured Help Information
Instructions
Continue Researching
- Q&A: Lithium Compatible Converter Replacement For WFCO WF-8955 55amp Converter
- Shop: Replacement Main Board Assembly for WFCO Auto-Detect RV Power Centers - 55 Amp
- Video: Review of WFCO RV Power Converter - WF76FR
- Search Results: power converter
- Search Results: rv power converter
- Shop: Replacement Main Board Assembly for WFCO Auto-Detect RV Power Centers - 45 Amp
- Shop: etrailer Adapter Brackets for Solera Slide-Out Toppers - Qty 2
- Video: Solara Adapter Bracket for etrailer Slide-Out Toppers Install Guide
- Video: Review of WFCO RV Power Converter - Converter Only - WF38FR
- Shop: WFCO Auto-Detect RV Converter Charger - Deck Mount - 12V - 55 Amp
- Shop: Progressive Dynamics 9300 Series RV Converter Charger - 12V - 60A
- Search Results: progressive dynamics
- Search Results: vent cover
- Shop: Cabin Air Filter
- Video: Review of Progressive Dynamics RV Power Converter - Standard Charge - PD79RR
- Q&A: Can I Upgrade a WF-8955PEC-GE Converter for LiFePO4 Batteries with the WF76FR?
- Search Results: wfco 8955
- Search Results: spare tire covers
- Q&A: Will Replacement Main Board Assembly Fit WFCO 8955PEC
- Q&A: Which WFCO Replacement Converter to Allow Charging of Lithium Battery
- Shop: PowerMax AC to DC Lower Replacement Converter Tray w/ Built-In Battery Charger - 12V - 55 Amps
- Q&A: Instructions to Wire a Trailer for Electric Brakes
- Shop: Lets Go Aero V-Lectric VFR Bike Rack for 2 Electric Bikes - 2" Hitches - Wheel Mount
- Search Results: trailer hitch
- Shop: Trailer Hitch
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Article: Trailer Wiring Diagrams
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Q&A: Lug Nut Torque Chart for Trailer Wheels
- Shop: Trailer Wiring
on Accessories and Parts
Richard H.
6/23/2026
Checking the battery with shore power plugged in, it shows 100% charged with 13.66 voltage.