Best Replacement For Old WFCO WF-8865 Converter That Will Charge Lithium Batteries

Updated 12/03/2025 | Published 12/02/2025

Products Featured in This Question

Progressive Dynamics 1000 Watt Inverter w/ Transfer Switch

(137)

$373.01

Progressive Dynamics 9300 Series RV Converter Charger - 12V - 60A

(198)

$292.37

Question:

Hello, Im trying to replace this old converter Wfco WF-8865 with a new one that will charge Lithium batteries, do you have anything that would work?

asked by: Jose F

Expert Reply:

Hello Jose, thanks for reaching out. Yes! We do have a suitable replacement for your old WFCO WF-8865 converter. I recommend the following:

- Progressive Dynamics 9300 Series RV Converter Charger - 12V - 60A # PD79RR

This will work with Lithium batteries as well as lead acid and AGM. The converter unit itself is 8" x 9" x 3-5/8" so as long as you have room to mount it, you can be sure it will work as a replacement.

What kind of RV is this going in?

expert reply by: Jesse M

PD79RR
(click to enlarge)

Jose F.

12/3/2025

It will go in to Apla Seeya 2004 5th wheel 30ft. I would love to replace the fuse box, but it looks like all the fuse are not in one center console.

Jesse M.

12/3/2025

@JoseF On an ’04 Alfa Seeya, it’s totally normal for the fuses and breakers not to live in one neat panel. Alfa scattered things around. The 120-volt breakers are usually inside the coach near the steps or in a cabinet, the 12-volt fuse block is normally by the converter under the bed or in a front compartment, and then there are random inline fuses for slides, landing gear, fridge, and other circuits tucked wherever they felt like putting them. If you want to replace the fuse box, just find the converter first - the main 12-volt panel will be right there. Swapping it out for a modern fuse block is straightforward: label everything, move wires over one at a time, and you’re good. It’s not difficult, it’s just a bit of a scavenger hunt thanks to how Alfa built these rigs.