IF the designers have done their job properly, there will be a DIFFERENTIAL between the discharge and recharge minima.
This will ensure that the lowest discharge -level still allows safe onboard recharge...any system which doesn't, is, imho, unfit for purpose.
An electronically -controlled system should be self-monitoring and self-sufficient. It should always be available and serviceable for it's entire service-life.
The human interface is the point of "idiot input",- Very early on, we discussed the "possible" need to over-discharge cells in a real emergency...I suggested that a big, red," reserve battery emergency destructive supply" button could be placed in the cockpit, where the humans could override the system if that was needed to save the aircraft.