MPPT Solar Charge Controller Carspa MH-R2420, 12/24 V, 20 A

Product detailed description

Professional MPPT controller for charging 12/24 V lead and LiFePO4 batteries with solar energy. Compared to cheaper PWM controllers, it achieves up to 98% efficiency and ensures maximum utilization of energy from solar panels.

Supported are sealed AGM, GEL, Sealed and LiFePO4 batteries, the voltage is recognized automatically. The clear LCD display shows the panel and battery voltage, charging current, state of charge, load consumption, temperature and error code in case of a fault. The package includes a temperature sensor for charging compensation.

The connected DC load can be switched manually or programmatically, for example with dusk-to-dawn switching or a timer from dusk.

Main advantages:

• MPPT technology for tracking maximum panel performance
• Adaptive multi-stage battery charging
• Automatic detection of 12 V / 24 V
• Support for lead AGM / GEL and LiFePO4 batteries
• Advanced protection of the battery and panels against damage and incorrect connections
• TVS protection against lightning strikes
• Clear LCD display and LED indicators for operational status
• Programmable switching of DC load
• Quiet passive cooling without a fan
• Communication port RS232 / RS485 for monitoring

Technical specifications:

• Battery voltage: 12 / 24 V (automatic detection / manual setting)
• Max. panel power: 260 W / 12 V, 520 W / 24 V
• Max. panel voltage (Voc): 100 V (25 °C), 90 V (-25 °C)
• Max. controller current: 20 A
• Battery voltage range: 9 to 35 V
• Battery types: AGM, GEL, Sealed, LiFePO4, user-defined (User)
• MPPT voltage range: battery voltage + 2 V to 75 V
• Voltage conversion efficiency: 98 %
• MPPT tracking efficiency: > 99 %
• Protection: overvoltage FV and battery, FV overcapacity, overcurrent, full discharge, overcharging, short circuit, reverse polarity, DC load output overload, lightning strike (TVS)
• Max. capacitive load: 10 000 µF
• Max. DC load current: 20 A
• Output programming: manual switching, dusk-to-dawn switching, timer from dusk, permanently switched on, test
• Temperature compensation: -3 mV / °C / 2 V (predefined)
• Temperature sensor: included in the package
• Communication: RS232 / RS485
• Standby power consumption: 0.7 to 1.2 W
• Operating temperature: -35 °C to +45 °C
• Max. altitude: 3000 m
• Dimensions: 210 × 151 × 59.5 mm
• Weight: 1.4 kg
• Degree of protection: IP32