Boost your caravan's solar performance:
Victron MPPT solar controller upgrade in Somerset
Caravan MPPT upgrades from £200
Most caravans are fitted with basic PWM solar controllers that waste up to 30% of your panel's potential. We install Victron SmartSolar MPPT controllers that unlock the full power you already have — no extra panels needed.
Is your caravan's solar controller holding you back?
Nearly all factory-fitted caravan solar systems use basic PWM (Pulse Width Modulation) controllers. They're cheap and simple, but they waste a significant portion of the energy your solar panel is producing. If your caravan battery isn't charging as quickly as it should, the culprit may not be your panel — it's almost certainly your controller.
Does this sound familiar?
- Your battery barely charges on a cloudy day, even with a decent-sized roof panel.
- You're thinking about upgrading your panel, but unsure if a bigger panel will actually fix the problem.
- You want off-grid freedom on CL sites and rally fields, but your battery never lasts more than a night.
- Your controller isn't compatible with lithium batteries, preventing a future upgrade.
Before you buy a new panel, upgrade the controller that's wasting the power you already have.
Why MPPT is a game-changer for your caravan
Maximum Power Point Tracking (MPPT) is a smarter way to manage solar power. Unlike basic PWM controllers that simply pull panel voltage down to match the battery, an MPPT controller actively tracks the optimum power point of your solar panels and converts excess voltage into additional charge current.
The result? Up to 30% more energy harvested from the same panel — especially in UK conditions where cloud cover, low sun angles, and changing light levels are the norm. Victron's exceptionally fast tracking algorithm locks onto the optimum power point even when light intensity is constantly shifting.
Before you invest in a new solar panel, consider upgrading your controller first. You may not need more glass on your roof — you might just need a controller capable of harvesting the power your existing panel already generates. An MPPT upgrade is the most cost-effective way to boost your caravan's off-grid performance.
Based in Williton, Somerset, we install Victron SmartSolar MPPT controllers for caravan owners across the county. We'll assess your current setup and recommend the right controller for your panel and battery type.
Victron SmartSolar MPPT — the gold standard
- Bluetooth monitoring — Track solar yield, battery status, and charge history in real-time via the VictronConnect app.
- Universal compatibility — Fully configurable charge profiles for AGM, Gel, and Lithium caravan batteries.
- Ultra-fast tracking — Locks onto the optimum power point instantly as light conditions change.
The essential step for lithium upgrades
Thinking of switching your caravan to lithium? A Victron SmartSolar MPPT is a vital upgrade.
- Lithium batteries need a specific absorption voltage and charging profile that PWM controllers cannot deliver.
- Victron MPPTs feature fully configurable lithium profiles, ensuring safe and complete charging every time.
See our caravan lithium battery upgrade or caravan solar panel installation pages for combined solutions. Own a campervan? See our campervan MPPT upgrade page.
Why upgrade your caravan to a Victron MPPT controller?
Up to 30% more solar harvest
- MPPT technology extracts significantly more energy from your existing caravan panel compared to PWM — especially in cloudy UK conditions.
Bluetooth Monitoring
- Victron SmartSolar controllers include built-in Bluetooth. Monitor your solar yield, battery voltage, and charge history from your phone.
Lithium ready
- Fully configurable charge profiles mean your MPPT controller works perfectly with AGM, Gel, and Lithium caravan batteries — now or in the future.
Ultra-fast power point tracking
- Victron's algorithm locks onto the optimum power point almost instantly, so you harvest more energy during passing clouds and changing light.
No extra panels needed
- An MPPT upgrade is the most cost-effective way to boost caravan solar performance. You may not need a new panel — just a better controller.
Smart voltage conversion
- MPPT steps higher panel voltage down to the perfect charging voltage, maintaining maximum current flow and efficiency.
Our 5-step caravan MPPT controller upgrade
Swap your old controller and start harvesting up to 30% more power from your existing panels.
Consultation
Tell us about your current caravan solar setup — existing panel wattage, battery type, and the controller you're replacing. We'll confirm whether an MPPT upgrade is the right move and which model will give you the biggest gain.
Quote
We specify the correct Victron SmartSolar MPPT for your panel array and battery, and send an itemised quote within 48 hours — including parts lead time and any cabling or fuse upgrades needed.
Book the install
A deposit covers the new Victron controller and secures your fitting date. Most MPPT controller swaps are scheduled within 2–4 weeks.
Fitting
At our Williton workshop we remove your old PWM or basic controller and install the new Victron SmartSolar MPPT. We re-check and re-terminate the existing panel and battery cabling, then configure the controller to your battery chemistry. Most swaps completed in a single day.
Demo and handover
We pair the new controller with your phone over Bluetooth, walk you through the VictronConnect app, and show you how to read live and historical solar harvest data. You leave with documentation, ongoing support, and our 12-month installation warranty.
Stop wasting free energy from your caravan solar panel
Upgrade to a Victron SmartSolar MPPT controller and unlock the true potential of your caravan's existing solar setup. Professional installation by Quantock Van Tech in Somerset.