Replacement for WFCO 8935 in 2021 Jayco Upgrading to Lithium Batteries

Published 05/09/2026

Question:

I have a 2021 Jayco with a WFCO 8935 and Im wanting to upgrade to lithium batteries. Do you have a direct replacement for this? Thanks.

asked by: Jeff

Expert Reply:

Hey Jeff! We do have a direct replacement. The WFCO RV Power Center - 35 Amp # WF28FR is the upgraded version of your existing 8935. This has lithium compatibility with auto detect technology. The power center will detect the lithium batteries and select the correct charging profile.

Since this is also an 8935 (8935-AD) it will fit in the same cutout you have now so you won't have to modify anything. Jayco tends to use Waygo connectors, so make sure you're careful when you put the power center back in. They have a tendency to pop open and your wires will come loose. I also recommend picking up some spare fuses if you don't already have some.

Any big trips coming up once you get the new power center and batteries installed?

expert reply by: Robin H