Victron Energy Argodiode Battery Isolator 140-3AC. Three batteries, 140A
Victron Energy Diode Battery Isolator Argo 1403AC. Three batteries, 140A
Diode battery isolators allow simultaneous charging of two or more batteries from one alternator, without connecting the batteries together. Discharging the accessory battery for example will not result in also discharging the starter battery. Low voltage drop due to the use of high efficiency Schottky diodes.
Datasheet: Argodiode Battery Isolators