Days or weeks does not make any difference with LiFEo4 batteries. Long term (several months, over Winter) you can store them at any level you want but 50% is usually recommended. (View Post)
I skipped upgrading to the "Auto Detect" WFCO. Way too many problems with it. Added a Victron Smart Charger when I upgraded to Lithium. The older WFCO will supply DC when on shore power and… (View Post)