Andy,
The Victron units have on their control panel a switch so that when you leave the boat you can switch it to charger only.
If the power fails it does not bring in the inverter and drain the batteries.
If not set the discharge cut off to 50% and all is good.
Cheers
Benn
__________________
"When I die I hope my wife doesn't sell my toys for what I told her I paid for them"
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