Will Progressive Dynamics PD4590CSV Work With Lithium

Updated 11/18/2025 | Published 05/02/2025

Question:

hi have purchased a replacement converter PD4590CSV for my RV that has/is PD45601K18L panel. I thought this converter would work with lithium battery up grade. everything i can find says theres an LI or LA switch which i dont have on my panel. please provide guidance...

asked by: Ian F

Expert Reply:

Hi Ian; the # PD4590CSV is for lead acid and AGM batteries. I'm sorry to say that this particular converter section isn't one with the lithium switch you're referencing. Since you want to use it with lithium you actually need the Progressive Dynamics Lithium 90A 4500 Series Inteli-Power Converter Section PD4590LICSV instead.

expert reply by: Robin H

PD Lithium 90A 4500 Series Inteli-Power Converter Section
(click to enlarge)

Ian F.

5/6/2025

Thanks

Robin H.

5/6/2025

@IanF happy to help!

Vang

11/13/2025

Hi is there a switch on the PD Lithium 90A 4500 for the house lithium upgrade? And where is the switch located?

Robin H.

11/18/2025

@Vang it depends on when it was made. Take a look at the answer page linked below which has some pictures showing the switch. The lithium converter section is no longer available so if you don't have the switch you need to replace the entire thing with # PD4590K18LS8

Helpful Links

question-706414.html

Vang

11/18/2025

@RobinH Thanks I did find the switch on the PD .