Ensure your electrical autonomy in your van with peace of mind

The Scheiber 12V battery isolator is the intelligent guardian of your electrical circuit. Specifically designed for the needs of converted vans and camper vans, it solves this fundamental problem with formidable efficiency. Its role is simple but crucial: when you're driving, it couples your starter battery to your auxiliary battery so that the latter charges via the alternator. As soon as you turn off the ignition, it separates them instantly, thus protecting your starter battery from any discharge. You can then use your fridge, lights and chargers without ever fearing a breakdown in the morning.

What sets it apart is its compatibility with modern vehicles (Euro 5/6 standards) equipped with smart alternators with variable voltage. Where conventional relays would be ineffective, the Scheiber isolator analyses voltage in real time to guarantee optimal and safe charging. Manufactured by a French brand recognised for its reliability, it's a minimal investment for maximum peace of mind during all your adventures.

The key advantages of the Scheiber battery isolator

• Reliability above all: Designed and manufactured by Scheiber, a French reference in electrical equipment for demanding environments. Its robust design guarantees stable and long-lasting operation, even in vanlife conditions.
• An installation designed for you: Compact and lightweight, it easily finds its place in your van conversion. Clear instructions and well-identified connections make installation accessible, even for non-experts.
• Guaranteed compatibility: Specially designed for smart alternators in modern vehicles (Euro 5/6), it ensures efficient charging where other systems fail. The optional “+APC” (After Ignition) input provides even finer control for perfect performance.
• Built-in safety: The isolator actively protects your installation against overvoltage and short circuits. It preserves the lifespan of your batteries (starter and auxiliary) by ensuring correct charging and discharging cycles.

Technical specifications of the Scheiber 38.12002.00 battery isolator

• Product type: Intelligent automatic battery isolator
• Reference: Scheiber 38.12002.00
• Nominal voltage: 12V
• Maximum coupling current: 70A
• Maximum auxiliary battery bank capacity: 300Ah
• Coupling threshold (connection): > 13.5V
• Decoupling threshold (separation): < 12.7V
• Compatibility: All types of 12V batteries (Lead, AGM, Gel, Lithium). For Lithium batteries, check compatibility with the BMS charging voltages.
• Specifications: Designed for smart alternators (Euro 5 / Euro 6)
• Additional inputs: +APC (After Ignition) input for forced coupling
• Protections: Overvoltage, short circuits
• Dimensions (LxWxH): 89 x 60 x 35 mm
• Weight: 250g
• Body material: High-strength ABS plastic
• Colour: Black

FAQ

Question 1: “Is this isolator compatible with a lithium auxiliary battery (LiFePO4)?” Yes, the Scheiber battery isolator works with lithium batteries.

It is based on voltage thresholds that are generally compatible. However, we advise you to always check the recommended charging voltage specifications from your battery manufacturer and its management system (BMS) for optimal performance.

Question 2: “Is the use of the '+APC' input mandatory for installation?”

No, it is not mandatory, the isolator can operate in purely automatic mode based on voltage. However, for modern vehicles (Euro 6) with smart alternators, connecting the “+APC” signal is highly recommended. This forces coupling as soon as the ignition is on and guarantees that the auxiliary battery charges even if the alternator regulates its voltage downwards.

Question 3: “What is the difference with a simple power relay?”

A simple relay merely opens or closes a circuit on command, without intelligence. The Scheiber battery isolator is an electronic device that constantly monitors battery voltage. It only connects the batteries when the alternator is actually providing a charge, and separates them as soon as the engine stops to protect the starter battery. It's a much safer and more effective solution for preserving your installation.