Lithium Compatible Replacement Converter for a Progressive Dynamics 45w PD4045KA

Updated 04/28/2025 | Published 11/30/2023

Products Featured in This Question

Replacement Converter Section for Progressive Dynamics Inteli-Power 4000 Series 45 Amp Power Center

(221)

$192.60

Question:

I need to replace my rvs Progressive Dynamics 45w converter PD4045KA so I may charge and use my 2 X 40ah lithium batteries. I understand the correct replacement is PD4045LICSV but that model only charges up to 13.6v? Is there a replacement converter that will safely charge my batteries to maximum capacity?

asked by: Darrin V

Expert Reply:

Thanks for the picture! The Replacement Converter Section item # PD4045CSV is the correct part you need to replace your PD4045KA converter. It is compatible with Lithium batteries you'll just have to flip the LI/LA switch.

I linked the instructions below so you can verify but it does charge up to 14.6 +/-.3VDC for Lithium batteries.

expert reply by: Jerred H

Progressive Dynamics Converter
(click to enlarge)

David

4/28/2025

Have a pd4000 that does not support lithium. Instead of replacing converter can I just leave the old converter hooked up and attach a 10A lithium wall charger to the battery terminals and plug into a 120V outlet in the camper. Then when I plug into shore power both chargers would charge the battery. I assume the lithium wall charger will top it off to the 14.2v needed but not sure if it's ok to have them both running at the same time? Also reading that the 7 pin from the truck connected to a lithium battery can fry the alternator? Any truth to that? Many people saying disconnect it or pull the 7 pin hot fuse out if truck so it doesn't work? Thanks

Jerred H.

4/28/2025

@David No, if you install a plug in converter like the Progressive Dynamics item # PD69RR you would need to disconnect the current non-lithium compatible one in your control panel. Replacing the converter section is going to be the most cost-effective option. You would need the Replacement Converter Section for Progressive Dynamics Inteli-Power 4000 Series 45 Amp Power Center item # PD4045CSV. That's not necessarily true but it can happen if you're trying to charge too large of a bank of lithium batteries with your tow vehicle's alternator.