photonic universe

500W (2 X 250W) 12V/24V Semi-Flexible Narrowboat Solar Charging Kit With Austrian Textured Fibreglass Solar Panels

2XFLPRO-250M-KIT
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  • Regular price £1,168.99 Including VAT
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This powerful, waterproof 500W monocrystalline solar charging kit is perfect for permanent outdoor use for charging 12V or 24V batteries in marine applications such as narrowboats, wide beams, Dutch barges, catamarans or other sailing boats. This kit is also suitable for various other applications, including motorhomes, caravans, vehicles, and off-grid back up solar systems.

These 250W solar panels are amongst the largest semi-flexible solar panels available on the UK market and are ideal for flat or curved roofs, as they can easily mould to the shape of the mounting surface. This is our most powerful flexible solar charging kit, and can generate up to 40A charging current when charging a 12V battery.

This kit will charge a typical 200Ah battery from 0% to 100% in only 5-6 hours of bright sunlight.

The solar kit includes:

2 x 250W semi-flexible, textured solar panels made of plastic reinforced with glass fibre - IEC certified (Austrian made)
40A 12V/24V high efficiency MPPT solar charge controller with inbuilt LCD display
A pair of 5m 4mm2 single core extension cables with MC4 connectors
3m of 10mm2 battery cable with a 40A fuse, fuse holder, and 8mm ring terminals


2 x 250W semi-flexible solar panels:

These solar panels have an extremely durable fibreglass textured surface that minimises light reflection whilst maximising light absorption from every possible angle. This ensures high solar panel performance in low light or cloudy conditions, or when light falls at an angle (morning, evening or wintertime).

When the panels are attached to a rigid surface, it is possible to walk on them in soft shoes (to prevent accidental scratches), making this kit the perfect choice for mounting on a boat deck.

These Austrian-made solar panels are manufactured to the highest European quality standards and are fully waterproof with a high resistance to salt water environments.

High efficiency MPPT controller:

The 40A 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 protection functions such as stopping reverse current at night (from the battery back to the solar panel), automatic cut off to prevent over-charging and deep discharge, over voltage, over load, short circuit and reverse polarity protection.

The built-in LCD screen shows real-time charging parameters such as voltage, current (separately for solar panels / 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). Other features include LED indicators and a temperature sensor.

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

Additional items: Each solar panel is fitted with 2 x 0.9m cable (4.0mm2 cross section) with waterproof MC4 connectors, which can be easily connected to the 4.0mm2 extension cable in this kit, or alternatively used for linking several panels together. This kit also includes 3m of heavy duty red and black battery cable (10mm2 cross section) with a 40A fuse, fuse holder, and 8mm ring terminals for use between the solar charge controller and your battery.

Specifications (per solar panel):

Peak power: 250W
Maximum power voltage: 28.7V
Maximum power current: 8.7A
Open circuit voltage: 34.9V
Short circuit current: 9.2A
Dimensions: 1549 x 991 x 2 mm
Weight: 5.27 kg
2 x 0.9m cable (4.0mm2 cross section) with waterproof MC4 connectors


Controller specifications:

The most advanced MPPT technology to ensure high efficiency (>95%) of your solar system
Fully automated operation and auto 12/24V selection for lead acid batteries
3 pairs of terminals (solar panel, battery, load) for wires up to 16mm2
Maximum solar panel voltage 100V
Maximum solar panel power 520W (12V) / 1040W (24V)
Temperature sensor for automatic compensation (-3mV/°C/2V) (auto temperature compensation not enabled for lithium batteries)
Comprehensive electronic protection features
Communication port: RS485/RJ45 interface
Grounding: negative common ground
Current limiting function (40A)
Self-consumption: <12mA
Working temperature: -25°C to +50°C
Size: 25.2 x 18 x 6.3 cm
Mounting dimensions: 21 x 17.1 cm
Weight: 1.65kg
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 panels and therefore delivered in a separate package.

This product is covered by a 2 year warranty. In addition, 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.