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  1. #1
    Setting Up Camp
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    What converter is in my new 2022 XLS 22RBE?

    I just bought a 2022 XLS 22RBE and I am already looking at the solar setup. I haven't even picked it up yet and I am planning upgrades. Do the converter/chargers support LifePO4 charging or should I plan on replacing it. I have a 300ah LifePO4 Chins from my old rig and plan on using it and want to charge it fully when on shore/genny power.
    2022 Imagine XLS 17MKE
    2019 Silverado 4X4 RST
    1966 Chevelle SS
    2012 Vans RV-10

  2. #2
    Site Team WhittleBurner's Avatar
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    According to GD parts look up it is a WFCO converter
    https://www.granddesignrv.com/owner-...s/detail/42835
    Marcy & Gary
    2014 Grand Design - Reflection 303RLS
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  3. #3
    Site Sponsor Corky2's Avatar
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    That's the one (WF-8735P-GE) I have in my 22rbe
    2022 Imagine 22RBE
    2021 Ram 1500 Big Horn 5.7 Hemi 4X4
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    Site Team Ynot4me2's Avatar
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    I don't think any of the WFCO that GD uses are lifepo4 ready. They will charge them but not fully. The converter/charger in the XLS lines are 1 piece and has to be completely changed. Not a huge job but not a quick one either. PD4135 is the replacement from Progressive Dynamics which is lithium ready.

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    Steph & Lise
    2019 F150 Lariat 2.7 EB
    2020 Imagine XLS 22MLE

  5. #5
    Site Team Soundsailor's Avatar
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    Quote Originally Posted by tompotts View Post
    I just bought a 2022 XLS 22RBE and I am already looking at the solar setup. I haven't even picked it up yet and I am planning upgrades. Do the converter/chargers support LifePO4 charging or should I plan on replacing it. I have a 300ah LifePO4 Chins from my old rig and plan on using it and want to charge it fully when on shore/genny power.
    First off, welcome to the forum, hope you enjoy the new coach. As stated by others, your charger/converter is most likely not Lifepo4 aware, it will charge but not all the way. The solar charge controller you got, by contrast, probably is Lifepo4 aware and will charge your battery the rest of the way if you have enough sun.
    Stephen and Judy
    2022 Reflection 150 Series 260RD (Stella)
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  6. #6
    Site Team Second Chance's Avatar
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    One thing I don't see mentioned above: the Serial Number Data Sheet that came in the paperwork packet with your RV from GD will tell you the make and model number of the converter/charger installed in your unit. You can use that information to look it up on the manufacturer's web site (WFCO, etc.) and see all of its specifications. There's also likely a manual for it in that same paperwork packet.

    Rob
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    2020 Solitude 310GK-R, MORryde IS, disc brakes,
    Sailun LRG tires, solar, DP windows, W/D
    (Previously in a Reflection 337RLS)
    Full time since 08/2015

  7. #7
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    The WFCO you have will certainly work with LifePO4, but it will only charge up to around 80 ish percent. That WFCO simply does not have the higher voltage output that LifePO4 wants for 100% charging.

    Quote Originally Posted by tompotts View Post
    I just bought a 2022 XLS 22RBE and I am already looking at the solar setup. I haven't even picked it up yet and I am planning upgrades. Do the converter/chargers support LifePO4 charging or should I plan on replacing it. I have a 300ah LifePO4 Chins from my old rig and plan on using it and want to charge it fully when on shore/genny power.
    2022 GD 2970RL (soon to be "released")
    2019 F350 Platinum, Shorter bed, Diesel, SRW, 3.55 rear, 55gal tank!
    2016 F150 Platinum (traded in for F350 fall 2019)
    2016 GD 2600rb (Sold)





  8. #8
    Setting Up Camp
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    Thank you everyone for the input. My new 2022 XLS 17MKE has a WFCO WF-8735-AD-GE and it WILL charge Li batteries to 100%. The AD in the part number means Auto Detect and on LI mode the charge voltage goes up 14.6 volts @ 32.5 amps.
    2022 Imagine XLS 17MKE
    2019 Silverado 4X4 RST
    1966 Chevelle SS
    2012 Vans RV-10

  9. #9
    Rolling Along
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    Quote Originally Posted by tompotts View Post
    Thank you everyone for the input. My new 2022 XLS 17MKE has a WFCO WF-8735-AD-GE and it WILL charge Li batteries to 100%. The AD in the part number means Auto Detect and on LI mode the charge voltage goes up 14.6 volts @ 32.5 amps.
    I was going to mention that. When I talked with WFCO rep (very nice and very helpful) if it has AD in the number it will know what the battery is. As for the solar, mine has to be switched to the different battery types and does not auto detect.
    Upstate NY
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