Lithium Compatible Replacement For WF-8735/8740 Converter In 2018 Tab 320 Camper
Updated 09/12/2025 | Published 08/27/2025
Question:
I currently have a WF-8735/8740 Converter in my 2018 Tab 320 Camper, but its not Lithium compatible. Could you tell me what would be the best application for me? I bought lithium batteries, but dont want to install until I change out the converter. The WFCO upgrade with Auto Detect has a long history of problems, so I want to avoid that route. Thanks so much for any help you could provide. Best, Kevin
asked by: Kevin H
Expert Reply:
Hello Kevin, thanks for reaching out. We do have a lithium compatible replacement for your WF-8735/8740 Converter. This will require replacing the entire converter/power center. For that I recommend the following:
- Progressive Dynamics 4000 Series Mini RV Converter w/ Charge Wizard and AC/DC Distribution Panel # PD4045KA
This unit requires a 10-3/4" long x 7-1/4" tall cutout which is different from what you have now meaning your cutout will need to be modified for this to work.
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Product Page this Question was Asked From
Progressive Dynamics 4000 Series Mini RV Converter w/ Charge Wizard and AC/DC Distribution Panel
- RV Power Converter
- Converter and AC/DC Panel
- Battery Mode Switch
- 12V
- 45 Amps
- AGM
- Gel
- Lead Acid
- Lithium
- Multi-Stage Charge
- Progressive Dynamics
more information >
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Jesse M.
9/12/2025
Hey Kevin, did the Progressive Dynamics 4000 Series Mini RV Converter work out for your camper? I'm asking because your experience could help others who are looking to upgrade their converters for lithium batteries.