The Victron Argodiode Battery Isolator 80-2SC enables simultaneous charging of two batteries from a single alternator without tying them together, making it ideal for boats, RVs, and vehicles where starting power must be preserved. It protects the starter battery while the auxiliary battery charges, reducing the risk of total electrical failure and keeping your engine ready to start.
-
Two-battery charging from one alternator: Simultaneously charge two batteries without a direct battery-to-battery connection, preserving critical starting power.
-
No direct battery-to-battery link needed: Isolates battery banks to prevent cross-charging and protect essential starting power.
-
Low voltage drop with Schottky diodes: Efficient power transfer with approximately 0.3 V drop at low current and about 0.45 V at the rated output.
-
Compensation diode included: Slightly raises the alternator output to offset diode drop, improving charging performance.
-
Simple installation: Place the isolator between the alternator and the batteries; note that this can slightly reduce charge voltage in some setups, potentially preventing a full 100% charge.
-
Engine-start aware operation: Current-limited energize input powers B+ when the engine run/stop switch is closed, addressing alternator startup behavior.
-
80 A rating: Suitable for standard dual-battery configurations with moderate loads.
-
Dealer guidance recommended: For the best setup on your vessel or vehicle, consult your Victron dealer for compatibility and support.
With the Argodiode 80-2SC, you gain a reliable, efficient solution for keeping multiple battery banks charged while protecting critical starting power. It helps ensure your engine starts reliably, even when accessory loads are in use, by maintaining proper separation between battery banks and offering a robust charging path from a single alternator. A small trade-off is possible in charge voltage, depending on your setup; consult your dealer to optimize configuration for your specific application.
