Generic 40A 12V/24V Intelligent P W M solar charge controller

Generic 40A 12V/24V Intelligent PWM Solar Charge Controller

The Generic 40A PWM Solar Charge Controller is an intelligent battery management unit designed to regulate charging and discharging from solar panels to 12V or 24V battery systems. With its automatic voltage recognition, multi-level protection, and LCD display, it is ideal for use in solar energy systems, home backup setups, camping, and off-grid installations.

---

🔧 Key Features

• Rated Current: 40A

• System Voltage: Auto-selects 12V or 24V based on battery detection

• Charge Type: PWM (Pulse Width Modulation) for safe, efficient charging

• Display: Built-in LCD for voltage, current, and system status monitoring

• USB Output: Dual 5V USB ports for charging phones and small devices

---

⚡ Protection Functions

• Overcharge protection

• Over-discharge protection

• Overload protection

• Short-circuit protection

• Reverse polarity protection

• Temperature compensation (some models)

---

📐 Specifications

• Max PV Input Voltage: ≤ 50V

• Battery Types Supported: Sealed, Gel, Flooded lead-acid (selectable via button)

• Max Charging Voltage:

  • 12V system: ~14.4V

  • 24V system: ~28.8V

• Discharge Cut-Off: ~10.7V (12V system) / ~21.4V (24V system)

• Self-Consumption: ≤10mA

• Operating Temp: –20°C to +55°C

• Mounting Type: Wall or panel mount

• Enclosure: Plastic housing with ventilation slots

---

🔌 Connection Terminals

• Solar Panel Input (PV + / PV –)

• Battery Output (BATT + / BATT –)

• Load Output (LOAD + / LOAD –)

• USB Ports: 5V, up to 2A combined

⚠️ Note: Always connect the battery first, then the solar panel, then the load. Disconnect in reverse order.

---

🛠️ Applications

• Off-grid solar energy systems

• Cabin, RV, and marine solar setups

• Backup solar charging for 12V/24V batteries

• Street lighting and outdoor solar systems

• Educational and DIY solar projects

---

✅ Advantages

• Automatically detects 12V or 24V systems

• Supports heavy solar loads up to 40A

• Real-time monitoring with LCD interface

• Plug-and-play setup with clear terminals

• Reliable and affordable controller for solar beginners and pros