Victron Argodiode Battery Isolator 140-3AC - 3 Batteries - 140A [ARG140301020R]
SKU: 2549816093

Victron Argodiode Battery Isolator 140-3AC - 3 Batteries - 140A [ARG140301020R]

Sale price$85.68 Regular price$95.20
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Description

Victron Argodiode Battery Isolator 140-3AC - 3 Batteries - 140A [ARG140301020R]Argodiode Battery Isolator 140 3AC 3 Batteries 140A Argodiode Battery Isolators allow simultaneous charging of two or more batteries from one alternator, without connecting the batteries. Discharging the accessory battery for example will not result in also discharging the starter battery. Low voltage drop due to the use of high efficiency Schottky diodes. The Argo Battery Isolators feature a low voltage drop thanks to the use of Schottky diodes: at

Argodiode Battery Isolator 140-3AC - 3 Batteries - 140A

Argodiode Battery Isolators allow simultaneous charging of two or more batteries from one alternator, without connecting the batteries. Discharging the accessory battery for example will not result in also discharging the starter battery. Low voltage drop due to the use of high-efficiency Schottky diodes.

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 of 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. 

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.

Please contact your dealer for any returns, repairs or support issues related to this product.
Quick Guide (pdf)
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 2549816093

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Patrick
Pawtucket, US
★★★★★ 5
Good bang for your buck, great quality.
Works great. Most of it is metal and works as a heat sink. Came with two fuses and the adapters for smaller or larger Guage wires. Fit very well and easily for our choice of installation and was a great price.
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Reviewed in the United States on May 8, 2025
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Jeremy Gardner
Houston, US
★★★★★ 5
Good for under the hood
Pretty good heavy duty block. It's got the rubber grommets for the smaller wire if needed.
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Reviewed in the United States on January 1, 2026
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Kindle Customer
Louisville, US
★★★★★ 5
Easy install
Excellent easy install
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Reviewed in the United States on February 11, 2026
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Charles L
Lake Worth, US
★★★★★ 5
These are best quality ones ever had since I did been doing car audio
Great quality and durability
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Reviewed in the United States on February 8, 2026
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Patrick Osburn
Phoenix, US
★★★★★ 5
Well worth it
Very sturdy and well built.
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Reviewed in the United States on May 23, 2026

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