Cyrix-ct 12/24V 120A connection question

Hi! Is it possible to connect like this? Will it work or domestic battery can’t take current from alternator without dempher (starter battery)?

The alternator might not start producing energy without a battery connected to it.
Most (or all?) alternators need a battery to create the magnetic field needed to produce energy.

You might have to add a diode across 87 and 30.

Actually you wouldn’t even need the cyrix in that setup.