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Secondary car batteries need accessories so you can finish your install. Shop for fuses, terminals, isolators, relays and more!

Crux Battery Accessories

Crux Battery Isolators & Relays

Top Sellers in Crux Battery Accessories

Stabilizes Voltage to a Constant 12 Volts for Vehicles with "Stop & Restart" Feature (Late Model Vehicles with Fuel-Saving Features)

• Digitally stabilizes voltage to a constant +12V
• For late model vehicles equipped with fuel-saving features
• Engages during the "Stop & Restart" process
• Filters out unwanted fluctuations and voltage interference waves
• Maximum Amperage: 4A



Ships at Later Date