Victron Energy Argodiode 140-3AC Three Batteries 140A – ARG140301020R

£57.00 Inc VAT


Diode battery isolators allow simultaneous charging of two or more 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 Argo Battery Isolators feature a low voltage drop thanks to the use of Schottky diodes: at low current the voltage drop is approximately 0,3 V and at the rated output approximately 0,45 V. All models are 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.

Please see Victron Energy’s ‘Energy Unlimited’ or ask for specialist advice when installing a diode isolator. Simply inserting the isolator in the cabling between the alternator and the batteries will slightly reduce charge voltage. The result can be that batteries are not charged to the full 100% and age prematurely.

Alternator energize input
Some alternators need DC voltage on the B+ output to start charging. Obviously, DC will be present when the alternator is directly connected to a battery. Inserting a Diode or FET splitter will however prevent any return voltage/current from the batteries to the B+, and the alternator will not start. The new ‘AC’ diode isolators feature a special current limited energize input that will power the B+ when the engine run/stop switch is closed.

GTIN 8719076019107
Maximum Charge Current 140A
Maximum Alternator Current 140A
Number Of Batteries 3
Alternator Energize Input Yes
Connection M8 Studs
Dimensions H60 x W120 x D150mm
Weight 1.1Kg
Warranty 5 Years
Country of Manufacture India
Max. Charge Current 140A
SKU: ARG140301020R Categories: , Tags: , , , , , , ,
Weight 1.1 kg
Country of Manufacture


Battery Charging Application