VICTRON battery Isolator Argodiode 80-2SC 80A

The Argofet Isolators allow simultaneous charging of two or more batteries from one alternator (or a single output battery charger), without connecting the batteries together. Discharging the accessory battery for example will not result in also discharging the starter battery.

Argo isolators have a low voltage drop thanks to the use of Schottky diodes: at low current the voltage drop is about 0.3V and at nominal output about 0.45V. However, all models of this type include a compensation diode circuit, which can be used to slightly increase the alternator output to compensate for the voltage drop over the diode.