Campervan Split Charging Specialists

The UK's most comprehensive directory of campervan split charging specialists. 132 verified companies, independently rated and reviewed.

132 Specialists

4.8★ Avg Rating

4,693+ Reviews

56 Locations

Added byJoe Tannorella·Published 15 February 2026·Updated 26 August 2026

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Best Campervan Split Charging Specialists

Ranked by verified Google ratings and customer reviews. We track 132 companies offering campervan split charging across the UK — here are the highest rated.

Ample Van Solutions - Campervan Conversions

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★5.0(7)

Key Facts About Campervan Split Charging

✓ Split charging uses the vehicle's engine to recharge leisure batteries, a process best managed by a modern DC-DC charger.
✓ A professionally fitted DC-DC charger system costs between £600 and £1,200, depending on charger size and wiring complexity.
✓ Installation by a specialist typically requires one full day for correct cable routing, connections, and thorough system testing.
✓ Professionals prevent fire risks by using correctly sized cables and fuses, a critical safety detail often missed in DIY installs.
✓ Key choices for buyers include the charger's amperage (30A is popular) and models that integrate a solar charge controller.
✓ This system turns driving into productive charging, ensuring your leisure batteries are replenished simply by travelling between destinations.
✓ Modern Euro 5/6 vans with smart alternators require a DC-DC charger, as older voltage-sensing relays will not work reliably.

Why Choose Professional Campervan Split Charging?

Tackling a split charge system yourself seems straightforward, but modern vans introduce serious complexity. Vehicles with smart alternators, common in Euro 5 and 6 engines, require a specific DC-DC charger to avoid damaging the vehicle's campervan electrical system or undercharging your leisure batteries. A professional installer correctly calculates wire gauge, fuse ratings, and component placement, which is the difference between a reliable power source and a potential fire hazard. In practice, this means they ensure your expensive leisure batteries gets the precise charging profile it needs to last for years, while a simple DIY relay setup might cook a standard battery or fail to charge it at all.

When vetting an installer, ask about their experience with your specific base vehicle. A good specialist will ask you detailed questions about your power consumption, battery bank size, and future plans before recommending a specific DC-DC charger. Be wary of anyone who gives a price without understanding your needs or who cannot explain their wiring and fusing strategy. For most builds, a professionally installed alternator charging system costs between £800 and £2,500, with the work taking one to three days. This investment covers the high-quality components and the expertise needed to integrate the system safely with the van’s sensitive electronics, including the CAN bus network.

Finding a qualified technician with this level of expertise is the main challenge. CamperBrain simplifies this process by connecting you directly with specialists who focus on off-grid electrical systems. The platform allows you to filter installers by location and service, then examine their project galleries and read verified customer reviews. As a result, you can quickly identify professionals who have a proven track record with systems like yours. This enables you to gather multiple, detailed quotes from vetted companies, ensuring you find the right partner to build a safe and dependable power system for your adventures.

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Frequently Asked Questions

What is Campervan Split Charging?

Split charging is a system that charges your leisure batteries using the vehicle's engine. It's that simple. The system intelligently directs power from the alternator to your secondary battery bank without ever draining the starter battery. This means you arrive at your destination with topped-up power for lights, fridges, and gadgets. Modern installations almost always use a DC-to-DC (B2B) charger, which is essential for vans with smart alternators (typically Euro 5 engines and newer) to ensure a full and healthy charge cycle for your leisure batteries.

How much does a Split Charging system cost?

A professionally fitted split charge system typically costs between £800 and £2,500 in the UK. The final price depends heavily on the components used. A simple voltage-sensitive relay (VSR) for an older van will be at the lower end, while a powerful DC-DC charger required for modern vehicles and lithium batteries will be higher. The size of the charger (e.g., 30A vs 60A), the quality of the cabling, and the complexity of the vehicle's existing electronics all influence the labour cost. For most Transit or Transporter-based builds, budgeting around £1,200 is a realistic starting point.

How long does Split Charging take to install?

Expect a professional installation to take between one and three full days. It's more than just connecting a few wires. A proper job involves carefully routing heavy-gauge cables from the engine bay to the leisure battery's location, often under the vehicle or through interior panels. Technicians must install fuses, connect to the ignition, and configure the charger for the specific battery chemistry (like AGM or lithium). The complexity of the van's layout and integration with other electrical components will determine if it's a one-day task or a more involved multi-day project.

Can I install a Split Charging system myself?

While it's possible for a competent DIYer, this is one area where mistakes are costly and dangerous. You're dealing with high-current 12V electricity, which poses a significant fire risk if not handled correctly, making campervan fire safety crucial. Professionals use the right tools for crimping heavy-gauge lugs and understand how to calculate correct cable sizes and fuse ratings to prevent overheating. A poorly installed system can damage your van's sensitive electronics, destroy expensive batteries, or worse. Unless you are very confident with auto electrics, hiring a qualified installer provides peace of mind and ensures the system is safe.

What vans is a Split Charging system suitable for?

A split charging system is suitable for virtually any van being converted, from a classic VW T2 to a brand new Mercedes Sprinter. The key difference is the type of system required. Older vans (pre-Euro 5 engine) can often use a simple Voltage Sensitive Relay (VSR). However, almost all modern vans with smart alternators, which vary their output to save fuel, absolutely require a DC-DC charger. This type of charger boosts the voltage to ensure your leisure batteries receive a full, multi-stage charge, regardless of what the smart alternator is doing. A specialist will identify the correct system for your vehicle.

What are the benefits of a Split Charging system?

The primary benefit is free, automatic power generation. Every time you drive, your leisure batteries are being charged, meaning you can run your fridge and charge devices without worry. This significantly extends your off-grid capability, reducing reliance on campsites or solar panels on cloudy days. Crucially, a split charge system isolates your starter battery, so you can use all your habitation equipment without any risk of being unable to start the engine. It’s the foundational piece of any reliable off-grid electrical setup, turning driving time into productive charging time.

How do I find a Split Charging specialist?

Finding the right person is key to a safe installation. Look for campervan conversion companies or specialist auto electricians who explicitly list 12V leisure electrics and DC-DC charger installations as a core service. They should be able to discuss your specific vehicle's needs, particularly whether it has a smart alternator. Using a directory of vetted converters allows you to filter for specialists in electrical systems and see examples of their previous work. Always ask to see photos of their wiring and electrical setups to gauge the quality and neatness of their installations.

What should I look for in a good Split Charging provider?

A top-tier provider prioritises safety and quality. Look for evidence of tidy, well-managed wiring; cables should be secured, protected in conduit, and logically routed. They should use high-quality components from reputable brands like Victron, Sterling Power, or Renogy. Ask them what size cable and fuses they plan to use – their answer should be based on the charger's amperage and the cable run length. A great installer will also ask you about your battery type (AGM, Gel, or Lithium) to ensure the charger is configured correctly, maximising battery performance and lifespan.

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Expert Insights

"Forget old-school Voltage Sensitive Relays for any van newer than about 2015; their smart alternators require a proper DC-DC charger to ensure your leisure battery actually gets a full, healthy charge."

"Sizing your charger is critical for battery health. In practice, you should aim for a DC-DC charger rated between 20-40% of your lithium battery bank's total amp-hour capacity for optimal performance."

"A professional DC-DC charger installation is a solid investment, typically costing £800–£2,500 fitted. For most Transit-based builds, this job takes one to three days, depending on system complexity and interior access."

"Relying solely on alternator charging is a rookie mistake for extensive off-grid travel. A quality DC-DC charger is your foundation, but combining it with at least 200W of solar provides true energy independence."

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Campervan Split Charging Specialists

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Best Campervan Split Charging Specialists

Ample Van Solutions

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