The Victron Energy ArgoDiode 100-3AC Battery Isolator allows simultaneous charging of three batteries from one alternator while keeping them electrically separated, making it the best-fit purchase for boat, RV, and dual-battery vehicle owners. Current price: $34.00 — half the $68.00 compare-at value. Buy online at PowerHaven Outpost today.
Functions & Specifications
Three-Battery Simultaneous Charging
Charge starter, accessory, and house batteries from a single alternator. Discharging the accessory battery will not drain the starter battery.
Alternator Energize Input Wiring
The ArgoDiode 100-3AC features a special current-limited energize input that powers the B+ terminal when the engine run/stop switch is closed — ideal for alternators that need excitation to begin charging. Wire the energize input to the ignition/run circuit per the Victron wiring diagram for your alternator type.
Compensation Diode
All models include a compensation diode that slightly increases alternator output voltage to offset the drop across the isolator diodes — wire it into the alternator sense circuit for accurate regulation.
Low Voltage Drop
Schottky diodes deliver a lower voltage drop than standard isolators, preserving charging efficiency.
Comparison & Selection
Compared to VSR/relay isolators, diode isolators like the ArgoDiode 100-3AC are solid-state with no moving parts and no relay chatter. Alternatives requiring external relays add wiring complexity; at $34.00 this is the affordable, low-maintenance choice.
Deal Value
Order online now: $34.00 sale, $68.00 compare-at, extra 12% off with coupon OUTPOST12. Free shipping on orders over $45.00.
