
20A MPPT Solar Charge Controller
Equipment Type: 20A MPPT solar charge controller. Primary Applications: Off-grid solar charging for 12V or 24V battery systems using sealed, gel, flooded, or lithium batteries.
Performance Specifications
- Rated battery and load current: 20A.
- System voltage: 12V/24V with automatic detection.
- Maximum PV input voltage: 100 VDC.
- Maximum PV input short-circuit current: 25A.
- Recommended PV array power: 260W at 12V or 520W at 24V.
- Maximum battery voltage: 32V; discharge circuit voltage drop: ≤0.15V.
- MPPT tracking efficiency: >99%; conversion efficiency: ≤98%.
- Operating temperature: -35°C to +45°C; enclosure protection: IP32.
- Dimensions: 8.27 x 5.94 x 2.34 inches; net weight: 3.08 lb.
Safety Features and Certifications
- Electronic protection against reverse polarity, overcharging, overload, and short circuit.
- Lithium battery recovery function supports charging over-discharged lithium batteries.
- Die-cast aluminum housing supports heat dissipation during operation.
Installation and Maintenance Requirements
- Requires compatible photovoltaic input and 12V or 24V battery-system connections within the stated voltage and current limits.
- Allow space for the 8.27 x 5.94 x 2.34-inch controller and airflow around the die-cast aluminum housing.
- During installation, the controller automatically identifies the system voltage. LCD and LED indicators display charging status, battery information, operating parameters, and fault codes.
Warranty and Service Information
Branding/References
Reference: 20A MPPT solar charge controller.
Differentiators
MPPT tracking efficiency above 99%, 100 VDC solar input capability, optional BT-1 Bluetooth module support through the RS232 port, and lithium battery recovery combine flexible system compatibility with wireless monitoring readiness.