Campervan Split Charging Specialists

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

132 Specialists

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4,693+ Reviews

56 Locations

Added byJoe Tannorella·Published 15 February 2026·Updated 2 July 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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Key Facts About Campervan Split Charging

✓ Modern split charging uses a DC-DC charger to safely recharge a leisure battery from the vehicle's alternator while driving.
✓ Professional installation of a DC-DC split charge system typically costs £600–£1,500, depending on charger size and wiring complexity.
✓ Fitting a quality DC-DC charger system takes a professional four to eight hours, ensuring correct cable gauges and fuse protection.
✓ A pro correctly sizes cabling and fuses to prevent voltage drop and fire risk, a common mistake in DIY electrical systems.
✓ Buyers choose between older VSRs and modern DC-DC chargers, which are essential for smart alternators and optimising lithium battery charging.
✓ This system turns driving into charging time, enabling true off-grid power without relying solely on solar panels or hook-ups.
✓ DC-DC chargers are vital for Euro 6 vans with smart alternators, which otherwise stop charging leisure batteries when the starter is full.

Why Choose Professional Campervan Split Charging?

A split charging system is more than just a wire between two batteries. Professional installation prevents critical, expensive mistakes. An expert will correctly size the DC-DC charger to your specific alternator and leisure battery bank, preventing damage from an improper charge rate. This means using the right gauge of cable—thick enough to handle the current without becoming a fire risk. Crucially, specialists understand modern smart alternators found in most Euro 5 and 6 vans. On these vehicles, a simple voltage-sensitive relay (VSR) will fail to charge your leisure batteries properly. A pro fits the correct B2B charger configured for your van.

When vetting an installer, ask pointed questions about your specific build. A true specialist will justify their component choices, explaining why a 30A charger is better for your setup than a 60A one. Ask them how they plan to integrate the system with your van’s ignition signal. A major red flag is any installer who suggests a one-size-fits-all solution or pushes a basic VSR for a newer van. Ask to see their previous wiring work; look for neat, secured looms, not a tangled mess. Expect a professionally fitted DC-DC system to cost £800 to £2,500, taking one to three days to complete depending on complexity.

Finding a qualified electrical expert is a challenge. CamperBrain simplifies the process by connecting you with vetted specialists. The platform lets you browse portfolios of detailed electrical work and read genuine reviews from other builders. You can quickly gather and compare quotes from multiple top-rated companies for your exact project. This direct access to verified professionals removes the guesswork, letting you select an installer with proven expertise who fits your budget. It ensures your campervan electrical system is built safely and correctly from the start.

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Frequently Asked Questions

What exactly is a campervan split charging system?

It’s a system that charges your leisure batteries while you drive. Simple as that. The setup uses your van’s engine alternator to automatically top up the batteries powering your lights, fridge, and sockets. Modern systems rely on a DC-DC charger, a smart box that manages power flow safely and efficiently. This is crucial for newer vans with 'smart' alternators that vary their voltage. In practice, it means you can arrive at your destination with a much fuller battery, giving you more off-grid freedom without needing to plug in or rely solely on solar panels.

How much does a professional split charge installation cost?

Expect a professionally fitted DC-DC split charge system to cost between £800 and £2,500. The final price depends heavily on the charger's power rating, the complexity of your van's wiring, and the specialist's labour rates. A straightforward installation in an empty panel van will be at the lower end of that scale. However, a high-amperage system integrated into a complex electrical setup with a large lithium battery bank will push the cost towards the upper end. This price should always include the high-quality charger itself, correctly sized cabling, fuses, and professional labour.

How long does a split charge installation typically take?

Most professional installations take between one and two full days. It's much more than a quick wiring job. The process involves safely routing heavy-gauge cables from the engine bay to your leisure batteries, often under the vehicle or through sealed bulkheads. Installers also need to connect an ignition signal, correctly configure the charger for your specific battery chemistry, and test the whole system thoroughly. For a complex build with difficult cable runs or other integrations, it could easily extend into a third day to ensure every connection is perfect and safe.

Can I just install a split charge system myself?

While it is possible for a confident DIY campervan builder, this is one area where mistakes get costly and dangerous. You are dealing with high-current 12V electrics, which presents a serious fire risk if done incorrectly. Professionals understand correct cable sizing, fuse ratings, and proper crimping techniques to create safe, reliable connections that won't fail on a bumpy road. They also know how to work around the sensitive electronics in modern vans. For most builders, paying a qualified specialist for this job is a wise investment in safety and long-term peace of mind.

Is a split charge system suitable for my specific van?

A split charge system is suitable for virtually any van being converted, from a classic VW to the latest Sprinter. It is absolutely essential for any modern van, typically those with Euro 5 or Euro 6 engines, which use smart alternators. These alternators vary their voltage to save fuel, which confuses older relay-based systems and can leave your batteries undercharged. A modern DC-DC charger is required to boost and stabilise the voltage, ensuring a full and healthy charge. So whether you have a Transit, Ducato, or Trafic, a DC-DC system is the modern standard.

What are the main benefits of having a split charge system?

The single biggest benefit is generating free, automatic power. You charge your leisure batteries simply by driving from one place to another. This means you can run your fridge and charge your devices without constantly watching your power levels. It dramatically reduces your reliance on campsite mains hook-up or solar panels, which is especially useful on cloudy British days or during winter trips. As a result, you gain significant freedom to stay off-grid for longer periods. It’s the foundational piece of any truly capable off-grid electrical system, working silently whenever the engine is on.

What should I look for in a quality split charge installation?

A quality job is all about safety and durability. First, the installer must use the correct size of cable for the current; undersized wires are a major fire hazard and a common DIY mistake. Every positive cable must be protected with a fuse or circuit breaker located as close to the battery as possible. Also, look for neat wiring that is secured properly and protected in conduit where it passes through metal or is exposed under the van. A great installer will also ask about your battery type (AGM, Lithium, etc.) to configure the charger's profile correctly for maximum battery lifespan.

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Expert Insights

"Modern vans with Euro 6 engines make VSR split charge relays obsolete. In practice, a proper DC-DC charger is the only way to guarantee a full 100% charge for your leisure batteries."

"For most builds using 100-200Ah of lithium, a 30A to 50A DC-DC charger hits the sweet spot. This balances a decent charge rate without putting excessive strain on the stock vehicle alternator."

"A cheap installation is a false economy. Professional fitting of a quality DC-DC system costs £800–£2,500 because it requires correctly fused, heavy-gauge copper wiring to prevent voltage drop and fire risk."

"Think of it as battery life insurance. A B2B charger's multi-stage charging profile can easily double the lifespan of an expensive lithium battery bank compared to a simple, unregulated relay system."

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Campervan Split Charging Specialists

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Best Campervan Split Charging Specialists

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