40W (20W+20W) solar charging kit with 10A controller and 5m cable
40W (20W+20W) solar charging kit with 10A controller and 5m cable
SKU:2XBST-20P-KIT
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40W (20W+20W) Solar Charging Kit
Complete 12V System | 10A PWM Controller | Off-Grid Power
The Photonic Universe 40W Solar Charging Kit (SKU: 2XBST-20P-KIT) provides a reliable and efficient solution for 12V battery charging in various off-grid applications. This comprehensive kit features two robust 20W polycrystalline solar panels paired with an advanced 10A PWM solar charge controller, ensuring your batteries are charged safely and effectively. It's an ideal choice for powering leisure batteries in campervans, caravans, boats, or for standalone off-grid setups.
Designed for ease of use and durability, this 40W solar kit includes all necessary components to start generating clean energy, offering dependable power for portable or permanent installations. Its weatherproof design and essential protection features make it suitable for continuous outdoor use in the UK climate.
KIT CONTENTS: Two 20W Polycrystalline Panels, 10A 12V/24V PWM Controller, 5m Battery Cable.
Key Features
| ▶ Dual 20W Panels — Maximise solar capture for efficient 12V battery charging. |
| ▶ 10A PWM Charge Controller — Protects batteries from overcharge and deep discharge, extending their lifespan. |
| ▶ Complete Kit — Includes two panels, controller, and a 5m battery cable for straightforward setup. |
| ▶ Robust & Weatherproof Design — Durable aluminium frames and waterproof panels suitable for permanent outdoor use. |
| ▶ 12V/24V Auto-Select — Controller automatically adapts to your battery system voltage. |
| ▶ Multi-Battery Compatibility — Works with sealed, gel, and flooded lead-acid battery types. |
Technical Specifications
| Parameter | Value |
|---|---|
| Solar Panel (Per Panel): | |
| Peak Power: | 20W |
| Max Power Voltage (Vmp): | 17.5V |
| Max Power Current (Imp): | 1.14A |
| Open Circuit Voltage (Voc): | 21.6V |
| Short Circuit Current (Isc): | 1.23A |
| Dimensions: | 485 x 345 x 25 mm |
| Weight: | 2.0 kg |
| Charge Controller: | |
| Rated Current: | 10A |
| System Voltage: | 12V / 24V Auto |
| Max Solar Input Voltage: | 50V |
| Self-Consumption: | 8.4mA (12V) / 7.8mA (24V) |
| Working Temperature: | -35°C to +50°C |
| Dimensions: | 13.8 x 6.9 x 3.7 cm |
| Weight: | 130 g |
| Battery Cable: | |
| Length: | 5m |
| Cross-Section: | 2.5mm² |
Charging & Battery Management
| Parameter | Value |
|---|---|
| Charging Technology: | PWM (Pulse Width Modulation) |
| Battery Types Supported: | Sealed, Gel, Flooded (Lead-Acid) |
| Temperature Compensation: | -3mV/°C/2V |
| Max Solar Input (12V System): | 160W |
| Max Solar Input (24V System): | 320W |
| Controller Terminals: | 3 Pairs (Solar, Battery, Load) |
Typical Applications
| Application | Description |
|---|---|
| Campervans & Caravans | Powering leisure batteries for lighting, fans, and small appliances on the go. |
| Boats & Marine | Maintaining 12V boat batteries for navigation, cabin lights, and essential systems. |
| Off-Grid Sheds & Cabins | Providing essential power for remote lighting, radios, and small electronics. |
| Electric Fences | Reliable and continuous power source for agricultural and livestock fencing systems. |
Built-In Protection Functions
The included 10A solar charge controller offers comprehensive protection features to safeguard your battery and system. These include protection against overcharge • deep discharge • overload (at 1.05 times rated discharge) • short circuit (at 2 times rated discharge) • reverse polarity • and overheating. It also prevents reverse current flow from the battery back to the solar panels during the night, ensuring optimal system safety and longevity.
Common Questions
What type of batteries can this kit charge?
This kit's 10A charge controller is compatible with 12V or 24V sealed, gel, and flooded lead-acid batteries. It features automatic voltage selection for convenience.
Is this kit suitable for permanent outdoor installation?
Yes, the two 20W polycrystalline solar panels feature robust, waterproof designs with sealed aluminium frames, making them ideal for permanent outdoor use in various weather conditions.
What is the purpose of the 10A charge controller?
The 10A PWM charge controller protects your battery from overcharging and deep discharging, which helps to extend its lifespan. It also prevents reverse current flow from the battery to the panels at night.
Can I expand this system with more solar panels?
The included 10A controller can handle up to 160W of solar input for a 12V battery system or 320W for a 24V system. You could add more panels up to this limit, ensuring they are compatible with the controller's voltage and current ratings.
Installation Notes
- Always connect the 12V or 24V battery to the controller's battery terminals first.
- Next, connect the solar panels to the controller's solar terminals.
- Ensure the charge controller is installed in a well-ventilated area.
- Allow 1.0 to 1.5cm clearance behind solar panels for adequate cooling.
- Refer to the supplied user manual for detailed wiring diagrams and instructions.
Before You Buy
- Verify your battery voltage (12V or 24V) is compatible with this kit.
- Consider your total power consumption to ensure 40W meets your needs.
- Plan your mounting location for optimal sunlight exposure and panel orientation.
- Confirm the 5m battery cable length is sufficient for your intended setup.
- For complex installations or specific requirements, professional advice is recommended.
All specifications are based on manufacturer data and are subject to change. Always verify compatibility and requirements before purchase. Photonic Universe provides a 1-year warranty for the solar charge controller and a 1-year workmanship warranty for the solar panels, with a 10-year 90% and 25-year 80% power output guarantee for the solar cells.
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