The Victron Argo Diode Battery Isolator 140-3AC is designed to charge three separate batteries from a single alternator without connecting the batteries together. It can handle a maximum current of 140 amps, ensuring efficient power distribution to multiple battery banks. The device uses high-efficiency Schottky diodes, which have a low forward voltage drop to minimize energy loss during charging. This model features a compact and robust design, making it suitable for both marine and automotive applications. Additionally, it supports a voltage drop of only 0.3 volts at low current, ensuring that battery charging is both efficient and reliable.