Qoltec MPPT Solar Charge Controller with Temperature Sensor 20A | 12V / 24V | LCD | 2 x USB | GEL | LiFePO4

The Qoltec MPPT Solar Charge Controller is a high-efficiency device designed to optimize the charging of your battery bank from solar panels. With a rated charge current of 20A and auto-detect system voltage of 12V or 24V, it ensures maximum power extraction from your PV array. The integrated temperature sensor provides accurate temperature compensation, extending battery life. The clear LCD display shows real-time system status, and dual USB ports allow convenient charging of mobile devices.

Advantages

MPPT technology achieves over 99% tracking efficiency, significantly outperforming PWM controllers. Supports multiple battery types including Sealed, Gel, Flooded, and LiFePO4, with adjustable charging parameters. Comprehensive protection features safeguard against overcharge, overdischarge, overload, short circuit, reverse polarity, and over-temperature. Low self-consumption of less than 10mA ensures minimal power loss.

Suitable for

• Off-grid solar systems for cabins, RVs, and boats
• Remote monitoring stations and telecommunications
• Solar lighting and small-scale renewable energy projects
• Backup power systems with battery storage

Key specifications

• Charge Controller Type: MPPT
• Rated Charge Current: 20A
• System Voltage: 12V / 24V (Auto-detect)
• Max PV Input Voltage: 50V
• Max PV Input Power: 260W (12V) / 520W (24V)
• Battery Types: Sealed, Gel, Flooded, LiFePO4
• Display: LCD
• USB Output: 2 x USB, 5V/2A total
• Self-Consumption: <10mA
• Operating Temperature: -20°C to +55°C
• Temperature Compensation: Yes (Integrated Sensor)
• Grounding: Common Positive
• Protection: Overcharge, Overdischarge, Overload, Short Circuit, Reverse Polarity, Over-temperature
• Max Wire Size: 10 AWG
• Humidity: 0-90% non-condensing

Recommendations

For optimal performance, ensure the PV array voltage does not exceed 50V and use appropriate wire gauge (max 10 AWG). The controller automatically detects 12V or 24V battery systems; verify battery type setting before use. Regular cleaning of the LCD and ventilation openings is recommended.