12V solar panels charging kits for caravans, motorhomes, boats, yachts, marine

Tel.:+44 (0) 203 150 11 11

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As described . Excellent . Quick delivery. A delight. Thanks!

Mark (Melton Mowbray, Leics, UK) - Nov 2014

We are a trusted supplier to thousands of UK clients

We are a trusted supplier to thousands of UK clients

Textured fibreglass solar kits

300W semi-flexible solar charging kit with Austrian textured fibreglass solar panel

300W semi-flexible solar charging kit with Austrian textured fibreglass solar panel
300W semi-flexible solar charging kit with Austrian textured fibreglass solar panel
300W semi-flexible solar charging kit with Austrian textured fibreglass solar panel
300W semi-flexible solar charging kit with Austrian textured fibreglass solar panel
300W semi-flexible solar charging kit with Austrian textured fibreglass solar panel
300W semi-flexible solar charging kit with Austrian textured fibreglass solar panel

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This high efficiency, waterproof 300W semi-flexible solar charging kit is perfect for permanent outdoor use to provide free electricity for charging 12V or 24V batteries to power various applications. This is the largest and most powerful semi-flexible solar charging kit available on the UK market for vehicles, boats or off-grid power systems.

The solar panel is ideal for flat or curved roofs, such as on boats, caravans, motorhomes, RVs etc as it can easily fit to the shape of the roof when mounted. 

It can generate up to 20A charging current when charging a 12V battery, so a typical 100Ah battery will be charged from 0% to 100% in only 5 hours of bright sunlight.  

The solar kit includes:

- 300W semi-flexible, textured solar panel made of plastic reinforced with glass fibre (IEC certified)

- 20A 12V/24V high efficiency MPPT solar charge controller with inbuilt LCD display

- A pair of 5m 4.0mm thick single core extension cables with MC4 connectors

- 5m 6.0mm thick double core battery cable with a fuse holder, 20A fuse and 8mm ring terminals

Powerful 300W semi-flexible solar panel:

This solar panel has a textured surface that reduces the reflection of light whilst maximising absorption of light from every possible angle. This ensures high performance of this solar panel in low light or cloudy conditions, or when the light falls at an angle (in the morning, evening or winter). The fibreglass plastic used in this solar panel is very strong and durable. When the solar panel is mounted on to a rigid surface, it is possible to walk on the solar panel in soft shoes (to prevent accidental scratches), which makes it a perfect choice for mounting on a boat deck. These Austrian manufactured solar panels are made to the highest European quality standards and are fully waterproof with a high resistance to salt water environments.

High efficiency MPPT controller:

The 20A high efficiency MPPT solar charge controller included in this kit uses the most advanced Maximum Power Point Tracking (MPPT) technology to track the maximum power voltage point of solar panels as it varies depending on sunlight exposure and temperature. This technology ensures the maximum efficiency of your solar system and significantly outperforms standard PWM solar controllers.

The controller features a comprehensive set of electronic safety functions including protection against: reverse current at night (from the battery back to the solar panel), over-charging and deep discharge, over voltage, over load, short circuit and reverse polarity protection. The controller also has self-diagnostic capability and highlights any system errors using advanced fault-targeting technology. 

The built-in LCD screen shows real-time charging parameters such as voltage, current (separately for solar panel / load), battery state of charge, accumulated charge and discharge energy. The easy to use buttons allow the user to manually select the battery type (sealed, flooded or gel) and program load settings (e.g. set timers for lighting, fans, pumps etc).

This controller is compatible with sealed, gel and flooded batteries and can automatically recognise 12V/24V battery systems.

Advanced monitoring and programming:

This solar charge controller also features advanced communication technology, which offers the user the opportunity to monitor and program parameters for the controller through various methods:

1) The controller can be connected to a remote meter MT50 with an LCD screen, which displays system performance information and allows the user to manually adjust parameters and load settings

2) The controller can be connected to a Wi-Fi module to create a Wi-Fi network, to which your mobile phone or tablet can connect, in order to monitor or adjust charging parameters and controller settings through a free mobile app - Solar Station Monitor (available for Android and iOS users).

3) An RJ45 to USB cable can be used to connect the controller directly to your PC / laptop, where parameters and settings can be monitored and adjusted via a free computer program - Solar Station Monitor (Windows-based PCs and laptops only).

Using one of these communication methods, the user will gain access not only to the standard charging parameters already shown via the built-in LCD screen, but also additional information such as min/max voltages, temperature, protection cut off voltages, diagnostics and other information. If required the user will also be able to amend the battery capacity, set charging volts for different charging stages, specify the duration of each charging stage, create a user-defined battery type with charging parameters specific to their battery (if the pre-existing options are unsuitable), and more.

Additional items: 

The solar panel is fitted with 2 x 0.9m cable (4.0mm2 cross section) with waterproof MC4 connectors for easy connectivity to the 4.0mm2 extension cable in this kit or for linking several panels together. This kit also includes a heavy duty 5m 6.0mm dual core battery cable fitted with a fuse holder, 20A fuse and 8mm ring terminals for use between the solar charge controller and your battery.

Click on the Details and Specifications tab for more information about this product.


Solar panel specifications:

  • Peak power: 300W
  • Maximum power voltage: 37.3V
  • Maximum power current: 8.1A
  • Open circuit voltage: 45.5V
  • Short circuit current: 8.6A
  • Dimensions: 2020 x 991 x 2 mm
  • Weight: 6.82 kg


Controller specifications:

  • The most advanced MPPT technology to ensure high efficiency (> 95%) of your solar system
  • Fully automated operation and auto 12/24V selection
  • 3 pairs of terminals (solar panel, battery, load) for wires up to 6mm
  • Maximum solar panel voltage 100V
  • Maximum solar panel power 260W (12V) / 520W (24V)
  • Temperature sensor for automatic compensation (-3mV/C/2V)
  • Comprehensive electronic protection features
  • Communication port: RS485/RJ45 interface
  • Current limiting function (20A)
  • Self-consumption: <20mA (12V), <16mA (24V)
  • Working temperature: -25C to +45C
  • Size: 22 x 15.4 x 5.2 cm
  • Mounting dimension: 17 x 14.5 cm
  • Weight: 1.1kg
  • Multiple mounting holes (5mm diameter) for ease of installation


Please note: due to our warehouse arrangements, the solar charge controller and accessories may be shipped from a different warehouse to the solar panel and therefore delivered in a separate package.

The solar panel in this kit is covered by a 2 year warranty and the solar charge controller is covered by a 1 year warranty.

In addition, the solar cells are guaranteed to produce at least 90% of nominal power in 10 years after purchase and at least 80% of nominal power in 25 years after purchase. This warranty is provided by the manufacturer of the solar cells. For more information please refer to our Terms and Conditions.



This solar panel comes with a detailed instruction manual which explains wiring and operations (see Documents tab). The solar charge controller also comes with a separate instruction manual which explains settings and operation.

This solar panel is normally fitted to a roof using a suitable adhesive but it can also be secured with self-tapping screws, tenax fasteners or even zipping (not included).

Note: this solar charge controller is not waterproof, and should be mounted indoors.

If you need help with installation or have any technical questions we can provide FREE support - please contact us by email or phone (see Contact Us page for more information).