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Home / Lighting / Driving & light bars

Heavy duty continuous duty solenoid, a black moulded body with two copper main studs and nuts on top, two smaller coil studs at the front, and a zinc-plated mounting bracket at the base

Elevate Automotive

Battery Isolator Switch Solenoid HD 100amp continuous

BLS100C

The 100A Continuous Battery Link Solenoid is a 12V DC dual battery isolator designed to protect your start battery from discharge while allowing your auxiliary battery to power non-essential loads. Ideal for 4WD and commercial vehicles, this isolator includes electronic…

$79.20$99.00 Save $19.80

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Important note

Use with properly rated fuses and wiring. Install vertically for best performance.

We accept
Universal – suitable for 4WDs, RVs, campers, and commercial vehicles with dual battery systems.

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The 100A Continuous Battery Link Solenoid is a 12V DC dual battery isolator designed to protect your start battery from discharge while allowing your auxiliary battery to power non-essential loads. Ideal for 4WD and commercial vehicles, this isolator includes electronic components that suppress high voltage transients and provides superior performance over traditional diode-based systems.

This heavy-duty solenoid features thick copper terminals for reliable current transfer, low-power coil consumption, and a durable, high-temp flame-retardant housing. It prevents your accessories from draining the main battery when the engine is off—keeping you ready to go.

  • 100A continuous-duty rating
  • Low power coil consumption
  • Copper terminals for smooth current transfer
  • Flame-retardant high-temp shell
  • Prevents main battery drain

Voltage12V DC

Rated Current100A continuous

MaterialMetal & plastic

Stud Diameter8mm

Size65 × 75 × 85mm

65mm (L) × 75mm (W) × 85mm (H)

Stud size: 8mm

Everything this install needs

0 of 0 in the box

Mount securely using the integrated bracket. Connect to start and auxiliary batteries using 8mm lugs and appropriate gauge wire. Fuse both sides.

Universal – suitable for 4WDs, RVs, campers, and commercial vehicles with dual battery systems.

Q: Is this a smart solenoid?
A: No, it’s a basic continuous-duty isolator. Ideal for manual or switched battery linking.

Q: What’s the main difference between this and a diode isolator?
A: This solenoid avoids the voltage drop associated with diodes and can handle higher loads more efficiently.

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