Progressive Dynamics Converter Recommendation for 2 100 Amp Batteries

Question

Question:

Hello, I am switching to two 100ah Lithium batteries in my RV and I would like to ask what size converter I will need. The RV runs on 30 amps, with 200 watts of solar. I will also be getting a DC-DC charger. My RV service tech said I need the Progressive Dynamics PD9360 but I see that this comes in different amps sizes. Thank you for your help!

asked by: Christina P

0

Expert Reply:

Hey Christina, the Progressive Dynamics PD9360 is our part number # PD79RR and it is a 60 amp converter. The last two digits of the part number are the amp rating for these converters. A 60 amp converter would work well to keep two 100 amp hour batteries charged. This converter also has a lithium charging profile as well so it's compatible in that way as well. Do you have batteries picked out as well?

expert reply by: Jameson C

0

Christina P.

11/24/2025

Thanks for the info! I do have the batteries already, but I need a DC-DC charger if you can recommend one. Thanks!

Jameson C.

11/24/2025

@ChristinaP We have a 50 amp DC to DC charger with the Redarc part # 331-BCDC1250D. This is similar to the amp rating of the PD79RR as well.

Answer 1

Hey Jim, It is hard to say which is better since both options are great. The WFCO #WF38FR is fairly newer to us so our experience is not as full like it is with the Progressive Dynamics #PD79RR. The Progressive Dynamics Converter is something I have…

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Answer 2

Hello Marc, thanks for reaching out. The Intelli-Power converter/ charger Model PD9260C can only charge lead acid batteries, it will not work with lithium. That said, we do have a suitable replacement for this that is lithium compatible. For that I…

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Answer 3

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Answer 4

Hey Tug, it sounds like your current converter isn't designed for lithium batteries or isn't in a lithium setting which charges at a higher voltage. The Progressive Dynamics converter charger part #PD79RR is lithium compatible and can put a…

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Answer 5

Hello Victor, thanks for reaching out. The Progressive Dynamics 9300 Series RV Converter Charger #PD79RR will work great for replacing your WFCO WF-9855 converter. We recommend this model as a replacement quite frequently in fact, since it has the…

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Answer 6

The WF-8930/50 power center does not actually do any charging for your batteries. Instead you are going to have a deck mount power converter somewhere in your camper. If you can find this then I can confirm if you are going to need a different…

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Answer 7

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Answer 8

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Answer 9

To change the battery mode on the Progressive Dynamics 9300 Series RV Converter Charger #PD79RR you'll need to insert the included CLAW tool into the small opening next to the battery type indicator light. Press and hold that button (using the…

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Answer 10

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Answer 11

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Answer 12

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Progressive Dynamics Converter Recommendation for 2 100 Amp Batteries

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