- If you control a relay from the Cerbo relay make sure it has a flyback diode, many examples on the old community of the back emf from a relay coil blowing the Cerbo. See FAQ https://community.victronenergy.com/t/using-inverter-mppt-gx-device-programmable-relays-with-higher-current-inductive-or-capacitive-loads/99
- If you are UK I have been looking at the Ablemail trickle charger because that can have the output voltage set so it is a bit smarter, but more expensive. https://ablemail.co.uk/products/amt12-2-trickle-charger-charges-vehicle-battery-from-leisure-battery-with-solar-charger-mains-hookup/
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