Congsin 20A PWM Solar Charge Controller – Smart Off-Grid Battery Management with LCD & USB
The Congsin 20A PWM Solar Controller is designed for small to mid-sized solar systems where reliable charge control and battery protection are essential. It supports both 12V/24V systems with auto-detection, features an intuitive LCD interface, and includes dual USB outputs for convenient device charging on the go.
Thank you for reading this post, don't forget to subscribe!⚡ Why Choose This Controller?
- ✅ 20A charging capacity suitable for up to 240W (12V) or 480W (24V) solar panels
- ✅ LCD screen for real-time voltage, current, and load monitoring
- ✅ USB ports for direct phone or accessory charging (5V output)
- ✅ Compatible with sealed, gel, and flooded batteries
- ✅ Multiple protections – overload, short circuit, reverse polarity, and over-discharge
- ✅ CE/FCC/RoHS compliant – trusted by solar installers globally
🌞 Designed for These Off-Grid Scenarios:
- 🚐 RV travelers using solar to charge batteries and mobile electronics
- ⛺ Remote cabins or tiny homes with 12V lighting and appliances
- ⛵ Boat owners seeking a marine-grade solar charging solution
- 🔧 DIY solar kits for basic energy independence setups
📊 Key Specifications:
- System Voltage: 12V / 24V (Auto)
- Rated Charge Current: 20A
- Max PV Voltage: <50V
- USB Output: 5V DC
- Display: Digital LCD
- No Load Loss: ≤10mA
- Charge Mode: PWM
- Certifications: CE, FCC, RoHS
📦 Wholesale & OEM/ODM Support
Congsin offers full OEM branding services including logo printing and packaging customization. Perfect for solar equipment dealers, e-commerce sellers, and energy startups targeting the U.S. off-grid market.
Request a wholesale quote or place a sample order now:
