Similarly to diode battery isolators, FET 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.
In contrast with diode battery isolators, FET isolators have virtually no voltage loss.
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.
In contrast with diode battery isolators, FET isolators have virtually no voltage loss.


