High efficiency 20A MPPT solar charge controller with built in Bluetooth for solar panels up to 260W (12V) / 520W (24V) up to 100V

Unlock the full potential of your solar power system with our advanced 20A MPPT solar charge controller. Designed for ultimate efficiency and comprehensive protection, this controller brings smart, intuitive control right to your fingertips with built-in Bluetooth. It's the perfect solution for anyone looking to maximize energy harvest and ensure the long-term health of their solar setup.

Key features of this powerful solar controller:

• High-efficiency MPPT technology for optimal energy capture.
• Rated 20A charge and discharge current.
• Built-in Bluetooth for easy monitoring and control.
• Supports solar panels up to 260W (12V battery systems) or 520W (24V battery systems).
• Wide solar input voltage range, up to 100V.
• Automatic 12V/24V battery system recognition.

Experience Superior MPPT Technology
Our controller uses the latest Maximum Power Point Tracking (MPPT) technology. This means it constantly finds the best power output from your solar panels, even as sunlight and temperature change throughout the day. You'll get significantly more power from your solar system compared to older PWM controllers. A great benefit of MPPT is its wide solar input voltage range; it works not only with standard 12V/24V panels but also with multiple panels combined for up to 100V input. This is especially helpful if your solar panel voltage is much higher than your battery's, like charging a 12V battery with a 36V panel, boosting your system's efficiency greatly.

Comprehensive Protection for Your Peace of Mind
Your solar system's safety is paramount. This charge controller includes a full suite of electronic protection features to keep your setup safe and running smoothly. These protections include:

• Preventing power flow back to solar panels at night.
• Automatic cut-off to stop over-charging your batteries.
• Protection against deep battery discharge.
• Safeguards against solar panel over-voltage.
• Defense against system overloads and short circuits.
• Reverse polarity protection.

The controller also has a smart self-diagnostic feature. It uses advanced fault-targeting technology to highlight any system errors, making troubleshooting simple.

Designed for Lithium Batteries and More
This solar charge controller is fully compatible with lithium batteries. You can easily select a specific lithium battery charging mode using the clear LCD display, the mobile app, or PC software. For unique battery types, a "User-Defined" option lets you customize charging settings, giving you complete flexibility for your power needs.

Advanced Monitoring and Control at Your Fingertips
Staying informed about your solar system has never been easier.

• Built-in Bluetooth: Monitor and adjust parameters wirelessly through a convenient mobile app on your smartphone or tablet.
• Automatic System Recognition: The controller automatically detects whether you have a 12V or 24V battery system. (Remember to always connect the battery to the controller first before connecting solar panels.)
• Clear LCD Display: See real-time charging details like voltage and current (for both solar and load), battery charge status, and historical data for energy charged and discharged.
• Easy-to-Use Buttons: Manually select your battery type (sealed, flooded, gel, or LiFePO4) and program load settings, such as timers for lights, fans, or pumps.

Multiple Ways to Connect and Manage Your System
This controller offers a range of advanced communication options, giving you flexible ways to monitor and program your solar charge controller:

1. Remote Meter (MT52): Connect to an optional MT52 remote meter with its own LCD screen. This shows system performance and lets you manually adjust settings.
2. Wi-Fi Module: Add a Wi-Fi module to create a network. Connect your phone or tablet to this network to monitor and adjust charging settings via a free mobile app (available for Android and iOS).
3. PC Connectivity: Use an RJ45 to USB cable to link the controller directly to your PC or laptop. Then, you can monitor and adjust parameters and settings using the free Solar Station Monitor computer program (for Windows PCs only).

With any of these methods, you gain access to much more than just the basic LCD display. You can see min/max voltages, temperature, protection cut-off voltages, detailed diagnostics, and more. You can also change battery capacity, set specific charging voltages for different stages, define the duration of each stage, or even create a custom battery type with your own charging parameters if needed.

Optimized Temperature Management
Beyond its intelligent heat-dissipating design and built-in temperature sensor, this controller includes a port for an optional remote temperature sensor. This sensor can be attached directly to your battery for more precise temperature measurements, ensuring your charging process is fully optimized. (Please note: The built-in temperature sensor is not active for lithium batteries when optimizing charging.)

Technical Specifications at a Glance:

• Achieves high efficiency (over 95%) with advanced MPPT technology.
• Fully automated operation with auto 12V/24V battery selection.
• Rated charge and discharge current: 20A.
• Features 3 pairs of terminals (for solar panel, battery, and load) suitable for wires up to 16mm².
• Maximum solar panel voltage input: 100V.
• Maximum solar panel power: 260W (for 12V systems) / 520W (for 24V systems).
• Temperature sensor for automatic charging compensation (-3mV/°C/2V).
• Comprehensive electronic protection suite built-in.
• Communication port: RS485/RJ45 interface.
• Very low self-consumption, ensuring more power for your system.
• Negative common ground for safe installation.
• Works reliably in temperatures from -25°C to +50°C.
• Compact size: 217 x 158 x 56.5 mm.
• Lightweight: 0.97 kg.
• Multiple 5mm mounting holes for easy installation.

Support and Documentation
Your purchase includes a 1-year warranty for peace of mind. A detailed user manual is provided, explaining wiring and operations clearly. Advanced users will find a dedicated section on MPPT technology in the manual. Should you need any assistance with installation or have technical questions, we offer FREE support. Please contact us via email or phone for help. The user manual is also available for download online.

Invest in our 20A MPPT solar charge controller to truly elevate your off-grid power experience. Its high efficiency MPPT technology guarantees you get the most power from your panels, while robust protection features safeguard your entire system. With seamless Bluetooth connectivity and multiple advanced monitoring options, you'll always be in control. Choose this controller for a powerful, reliable, and intelligently managed solar setup that delivers exceptional performance every day.