Argodiode 80-2SC 2 batteries 80A

Argodiode Battery Isolators allow simultaneous charging of two batteries from one alternator, without connecting the batteries together. Discharging the accessory battery for example will not result in also discharging the starter battery. 
The ArgoDiode battery isolators feature a low voltage drop thanks to the use of high-efficiency Schottky diodes: at low current, the voltage drop is approximately 0.3 V and at the rated output approximately 0.45 V
This Argodiode Battery Isolator is fitted with a compensation diode that can be used to slightly increase the output voltage of the alternator. This compensates for the voltage drop over the diodes in the isolator.