Dimensions 65x120x200mm. Weight 1.4 kg. Like the diode bridges, the Argo FET bridges allow two or more batteries to be charged simultaneously from a single alternator (or from a single charger) without connecting the batteries together. In contrast to diode bridges, FET bridges have the advantage of virtually zero voltage loss: The voltage drop is less than 0.02 V at low currents and averages 0.1 V at higher currents. By using the ARGO FET diode bridges, it is not necessary to also increase the alternator output voltage. However, it is highly recommended that the cables are short and of a suitable section. Example: When using a cable with a section of 50 mm2 (AWG 0) and 10 m. long, a current of 100 A passes, the voltage drop in the cable is 0.26 volts. Similarly, a current of 50 A through a cable with a section of 10 mm2 (AWG 7) and 5 m. long it will suffer a voltage drop of 0.35 volts.Alternator power inputSome alternators need a DC voltage at output B+ to start charging. Obviously DC will be present when the alternator is connected directly to the battery. However, if a diode bridge or FET splitter is inserted, any voltage/current return from the batteries to the B+ output will be prevented, and the alternator will not turn on. The new ARGO FET diode bridges have a special energized input with current limiter that will feed the B+ output when the motor start/stop switch is closed.
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