I'm curious if there's a critical protocol for connecting or disconnecting a charge controller. It's my assumption it's ok to tie in live panels so long as a battery is connected & to disconnect any live panels before removing the batteries. Would that be right? And is it a bad move to connect live panels with no battery connected? Or suppose a battery breaker trips & disconnects the battery from the charger with live panel power, would that fry a charger? I'd like to think Victron has these scenario's covered for protection against such things but I had 2 chargers fail within a couple of days of each other & not sure if 1 of those was the cause.