HQST MPPT Solar Charge Controller for Gel, Sealed, Flooded & Lithium Batteries

High Tracking Efficiency The HQST 12V 20 amp Solar Charge Controller utilizes advanced maximum power point tracking (MPPT) technology, ensuring fast and stable tracking to optimize energy capture. With a tracking efficiency of up to 99% and peak conversion efficiency at 98%, this controller maximizes the energy generated by solar panels, efficiently charging your system. It automatically detects 12V or 24V DC system voltages and delivers a maximum load output current of 20A. Should this exceed the 240 watt limit, overvoltage protection automatically stops output.

Parallel Charge Function Two HQST MPPT controllers of the same series (M2420N, M2440N, or M4860N) can work in parallel to share the load and meet high power charging requirements. Pair them with the included parallel charge cable to charge the same battery pack. The negative grounded controller offers comprehensive protection features such as overcharging/over-discharging, overload, overheat, short circuit, and reverse polarity protection. These features ensure the system operates safely and prevents damage due to faults or installation errors.

LCD Screen Display & Remote Monitoring The 40A solar charge controller is equipped with an LCD screen and LED fault indicators, providing real-time data on device operations and allowing you to adjust controller settings. It has a built-in Bluetooth module that enables remote monitoring via the ‘‘ChargePro 2.0’’ or ‘‘PVChargePro’’ apps. These apps store historical data for up to 300 days, allowing you to track your system’s performance over time. Note that for Android devices, location and Bluetooth must be enabled to connect to the app.

Higher Heat Dissipation Efficiency & Full-Load Working Crafted with a die-cast aluminum heat sink, this controller efficiently dissipates heat, thereby minimizing power loss due to thermal constraints. The enclosure is filled with gel to enhance PCBA cooling conductivity and protect against water and other damages, increasing the controller’s lifespan. Equipped with premium IC and better PCBA, the controller can operate under full load even in high-temperature environments.

Compatibility with Multiple Battery Types The MPPT solar charge controller is compatible with various battery types, including Flooded, AGM, Gel, and Lithium batteries. The user mode allows you to set specific charging parameters. It features a 3-stage charging process: boost, float, and equalization, providing optimized charging for your battery type. HQST provides a 1-year warranty and lifetime technical support. For any inquiries, please contact us through Amazon email.