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How To Upgrade Old PD4645V For Lithium Compatibility  

Updated 12/15/2025 | Published 11/23/2024

Question:

Class C Chinook Concourse 2001 Replaced converter charger and power center with PD4645V in 2015. As best as I can tell, the PD4645V at that time was not rated for lithium. Will the PD4045CSV work with my PD4645V?

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Expert Reply:

Hi Wayne; Progressive Dynamics updated there parts to be lithium compatible a couple years back but that was after 2015 so I'm sure you're right, your PD4645V is not lithium compatible. The # PD4045CSV is designed as a replacement for the # PD4045KA. You will need an entirely new # PD4645V to use lithium batteries.

Since you said you replaced the power center I would double check your part numbers before getting the replacement. PD4645V is the replacement section for certain Parallax, Magnetek, and WFCO models, not a full power center. If you have a Progressive Dynamics power center it must be a different model and may have a different converter section available.

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Robin H
Robin H. profile picture

Robin H.

12/15/2025

Hey Wayne, did you get a chance to confirm which power center model you have before moving forward with a new converter section? Knowing how that check went could help others sorting out similar Progressive Dynamics setups.

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