20A solar charge controller / regulator 12/24V for camper / caravan / boat

Unlock reliable power for your adventures with our 20A Solar Charge Controller. Designed specifically for your camper, caravan, or boat, this smart regulator ensures your batteries stay protected and optimally charged, extending their lifespan and giving you peace of mind wherever you roam. Say goodbye to battery worries and hello to consistent, dependable energy!

This powerful 20A controller comes packed with features to manage your solar setup effectively:

• Automatic Battery Protection: Prevents over-charging and deep discharge for extended battery life.
• PWM Technology: Boosts charge acceptance and can even recover some lost battery capacity.
• Reverse Current Stop: Keeps your battery power from flowing back to the solar panels at night.
• Comprehensive Safety: Includes protection against overload, short circuit, overheating, and more.
• Versatile Compatibility: Works with sealed, gel, and flooded batteries.
• High Power Input: Handles up to 320W (12V) or 640W (24V) of solar power.
• User-Friendly Indicators: Features LED lights, a temperature sensor, and a load "on/off" button.
• Compact Design: Its small size (approx. 16x8cm) makes it easy to install in tight spaces.
• Advanced Monitoring Options: Connect via remote meter, Wi-Fi module, or PC for detailed control.
• Robust Build: Operates reliably in temperatures from -35°C to +50°C.
• Easy Installation: Comes with an instruction manual and multiple mounting holes.
• Peace of Mind: Backed by a 1-year warranty and free support.

Smart Charging with PWM Technology
At its heart, this controller uses PWM (Pulse Width Modulation) technology. This isn't just a fancy term; it means your batteries get a more efficient charge. PWM helps increase how much charge your battery accepts, making the charging process faster and more complete. It also significantly prolongs the life of your battery and can even help recover some capacity that might have been lost over time. Plus, it cleverly stops current from flowing back from your battery to the solar panel at night, ensuring no wasted energy.

Unrivaled Battery Protection
Your battery is a vital part of your off-grid system, and this controller acts as its ultimate guardian. It features automatic cut-off to prevent both over-charging and deep discharge, which are common causes of battery damage. Beyond that, it offers a suite of other protection functions, including safeguards against overload, short circuits, and overheating, ensuring your system remains safe and operational.

Monitor and Control Your Power
Despite its powerful capabilities, this 20A controller is incredibly compact, measuring just 16x8cm. It's a perfect fit for small to medium solar PV systems with a battery and load, whether in your campervan or on your boat. One of its standout features is the advanced communication technology, giving you unprecedented control and insight into your system's performance. You have several convenient options to monitor and program its parameters:

1. Remote Meter (MT50): Connect to an optional MT50 remote meter with an LCD screen. This lets you see real-time system performance and adjust settings manually right from the display.
2. Wi-Fi Module: Add a Wi-Fi module to create a network. Your smartphone or tablet can then connect to it, allowing you to monitor and fine-tune charging parameters using a free mobile app available for both Android and iOS.
3. PC/Laptop Connection: Use an RJ45 to USB cable to link the controller directly to your Windows-based PC or laptop. A free computer program, Solar Station Monitor, lets you oversee and adjust all settings from your desktop.

Through any of these communication methods, you gain access to a wealth of information: voltage, current (for both solar panel and load), battery state of charge, accumulated charge and discharge energy, and min/max voltage readings. More importantly, you can personalize your system by changing battery types and capacity, setting custom charging volts for different stages, specifying charging stage durations, creating unique battery types with specific parameters, and even customizing your load settings for things like lighting or fans. The controller supports sealed, gel, and flooded batteries by default, and these communication methods allow you to easily change or define user-specific battery types.

Enhanced Accuracy with Remote Temperature Sensing
For even greater precision, the controller includes terminals for an optional remote temperature sensor. This sensor can be attached directly to your battery, providing a more accurate temperature reading. This precision helps the controller optimize the charging process, further safeguarding your battery and ensuring peak performance in varying conditions.

Key Specifications:

• Rated Current: 20A
• Automatic 12/24V System Detection
• Max Solar Input Voltage: Up to 50V
• Terminals: 3 pairs (input, battery, output) for wires up to 10mm²
• Self-Consumption: Very low (≤8.4mA at 12V / ≤7.8mA at 24V)
• Operating Temperature: -35°C to +50°C
• Dimensions: Approx. 15.9 x 8.1 x 4.8 cm
• Weight: 300 g

Simple Setup and Support
Installation is straightforward with the included instruction manual. You can find detailed connection and operation steps. Should you need any assistance or have technical questions, we offer FREE support via email or phone.

In summary, this 20A solar charge controller is more than just a regulator; it's a complete power management solution. It delivers superior battery protection, optimizes charging efficiency with advanced PWM technology, and offers unparalleled monitoring and customization options. Choose this controller for its robust safety features, compact size, and intelligent design, ensuring your off-grid power system for your camper, caravan, or boat is always reliable, safe, and efficient. Power your adventures with confidence!