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This is a solution for the Magnum setup to protect the Lithium batts while in storage.
Short answer, change the float voltage to 13.3 or 13.4 for storage. You can actually leave it there, but remember to initiate a manual charge if you are going to boondock for a while in order to bring them up to 100 %
Longer answer, and some context. You guys don’t know me. I am a new Marathon owner. My background is 20 years of Newell ownership and maintenance. I did ALL my own work.
Ten years ago I installed a 1000 A hr homemade LiFePo setup, and played around with the custom charge settings for a bit. Setting the float to 13.4 while in storage worked. I just sold the coach, and after 10 years of use the batteries still tested over the nameplate amp hrs. The point is my recommendation is not hear say.
One more thing, in the cheat sheet at the top of the post, it looks like you are terminating the charge based on return amps. BRAVO !
2000 Featherlite H3-45
2024 Jeep Grand Cherokee
Leesburg, FL