Surepower 1315-100 Battery Isolator (12V, 100A)

$ 145.99

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In your camper van or motorhome, you have both the engine battery and a house battery bank. You'll want the ability to keep both the engine battery and house batteries well-charged, and also to be able to use the stored energy from each.

The Surepower 1315-100 Battery Isolator enables you to have the engine battery and house batteries joined together electrically when desired for charging, but also keep them separate. The Surepower 1315-100 is is a heavy-duty 12VDC solenoid rated for continuous duty at 100A.

Designed by Sure Power, battery isolators are solid state devices in a multi-battery charging system that help ensure engine starting power. The battery isolators act as a check valve to prevent auxiliary batteries from draining the main battery. When installed, isolators allow vehicle accessories to draw current from the house battery without affecting the battery used for engine starting. This frees up the vehicle’s charging system so that the engine and house batteries can charge and discharge according to the needs of their electrical loads.

Key Features: Surepower 1315-100 Battery Isolator (12V, 100A)

Prevents auxiliary batteries from draining main battery power in vehicle electrical systems
Solid-state technology isolates each battery circuit to extend battery life by allowing each to charge and discharge according to need
Easily connects alternator to one main and one auxiliary battery
Designed by Surepower, the leader in battery isolators, for superior performance that exceeds original equipment manufacturer specifications
Limited 12-month warranty

Specifications: Surepower 1315-100 Battery Isolator (12V, 100A)

Height (in.)	3.5
Width (in.)	3.5
Depth (in.)	4.9
Weight (lbs.)	.9
Amperage Rating	100A
Approvals	CE

Vehicle fitment

Product type: Electrical system component
Vehicle: Camper vans, RVs, trailers, and mobile builds
Summary: Camper vans, RVs, trailers, and mobile builds that need a compatible electrical system component. Confirm voltage, amperage, wire sizing, mounting location, service access before ordering.

Fitment FAQ

What does this Surepower 1315-100 Battery Isolator (12V, 100A) fit?

This Surepower 1315-100 Battery Isolator (12V, 100A) fits Camper vans, RVs, trailers, and mobile builds.

Is this product vehicle-specific?

This electrical system component is not tied to one van generation. Fit depends on measurements, installation requirements, and the build layout.

What should I verify before ordering?

Confirm voltage, amperage, wire sizing, mounting location, service access before checkout.

What installation details matter?

Confirm voltage, amperage, wire sizing, mounting location, service access before ordering. Use professional installation when safety-critical, structural, electrical, fuel, water, or suspension work needs to be verified.

Who is this product best for?

This electrical system component is intended for camper van conversions, RV upgrades, overland builds, and mobile installations where the product specifications match the build.

Campervan HQ fitment guide