I have outboard motor (Merc 150 hp) equipped with 60 AMP alternator. Staring and house dual purpose battery 120 amp almost never needed shore charging. However my “electronic” only battery (100amp) is discharging by sonars and radio pretty quick, up to 15 amp per hour.
I would like to install Victron 12V DC to DC charger to help “fill-up” the “electronic” battery while running the boat.
Question: Which DC/DC charger I should use? (lots to choose from; 15A,18A or 30A)
What type/brand/amperage fuse I should use?
Thank you!
18A or 30A versions will keep pa e with your loads. The 30A should be OK with a 60A alternator and will back off if the electronics battery is full. The 18A version is likely to run near to full load continuously so better to have the 30A unit. For these you will need midi or perhaps a Mega fuse for the 30A unit. The manuals spec appropriate cable and fuse rating.
Thank you for help.I highly appreciate It!