40A MPPT Solar Charge Controller – Full Description
A 40A MPPT (Maximum Power Point Tracking) solar charge controller is designed to efficiently regulate and optimize the energy flow from solar panels to batteries. It’s ideal for medium to large off-grid solar systems, offering intelligent charging, protection, and monitoring features.
Core Features
- MPPT Technology: Tracks the optimal voltage/current point to maximize solar energy harvest
- High Efficiency:
- MPPT tracking efficiency: up to 99.9%
- Conversion efficiency: up to 98%
- Voltage Compatibility: Auto-detects and supports 12V / 24V / 36V / 48V battery systems
- Wide PV Input Range: Accepts solar panel voltages from 18V to 150V, depending on system voltage
- Battery Support: Compatible with Gel, AGM, Flooded, Sealed Lead-Acid, and Lithium batteries
Charging & Load Management
- Multi-Stage Charging: Bulk, Absorption, Float, and Equalize modes to extend battery life
- Limited Current Mode: Automatically reduces charging power if current exceeds rated 40A
- Capacitive Load Support: Handles large start-up currents for devices like motors
Protection & Safety
- Overcharge, over-discharge, short-circuit, reverse polarity, and overheating protection
- Temperature Compensation: Adjusts charging parameters based on ambient temperature
- Overheat Management: Reduces charging current linearly when temperature exceeds safe limits
Monitoring & Control
- LCD Display: Shows real-time system data and fault indicators
- Historical Data Storage: Logs up to 1 year of performance data
- Communication Ports:
- RS485 (standard)
- Optional Ethernet/RS232 for remote monitoring
- Modbus Protocol Support: Enables integration with smart energy systems
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