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Fisherguy's avatar
Fisherguy
Explorer
Jan 18, 2023

Are the new WFCO's as bad as the old ones?

Our old trailer (2007 Komfort) had a WFCO 8955 converter in it, I could NOT ever get it to go into bulk mode, not even when I moved it within a few feet of the batteries, tried everything. I did a thread on it. (I ended up putting a PD9280 in a new location closer to the batteries.) Any converter thread got pretty heated back then as I'm sure some of you will remember! ;)

We just bought a 2019 ORV Timber Ridge which unfortunately also came with an WFCO, this time a 8955 Lis. This is the one with a lead/lithium switch.
This trailer came with 3 - 100Ah LIthiums, has 600 watts of solar panels uptop and has a 12v Norcold fridge. (I might add another 200 watt panel and additional 100Ah Lithium if I need to?)

So are these new WFCO still as bad as the old ones?
If they're better I could replace the charger with a 8975 if it fits? (I'd have to upgrade the cables to the batteries I know)
Either way I'll be wanting to upgrade the charger for one as big as possible that will run from my Honda 2000 genny.

I'm hoping to shorten the learning curve re. lithium charging, this is all new to me.
Thx
Will
  • PerryB67's avatar
    PerryB67
    Explorer
    Feb 05, 2023
    Our WFCO in our 2018 Escape camper decided to charge our AGM's at 20.3 volts destroying them. After getting our new SiO2 batteries we merely disabled the charger portion and only charged with our rooftop solar for the next two years. Worked great.

    I received a different WFCO to replace the bad WFCO charger, installed it, but never used it. We sold the trailer last December.

    We now have a 2026 Bigfoot 25RQ with a Progressive Dynamics 45 amp charger. By adding their "Charge Wizard" it charges our two new 100 ah SOK LFP batteries just fine, but it's also disconnected in favor of the 160 watt rooftop solar and a 100 watt portable. For the past two weeks in Arizona our SOK's have been topped off most days, but with excess ah's not topping off a day or two is just fine. The lowest we've been so far is 78% SOC.

    Over two years ago when our WFCO charged at 20.3 volts I found a couple others who had the same experience with their WFCO's.

    I'm glad our new camper has a Progressive Dynamics charger.

    Enjoy,

    Perry

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