20A PWM Solar Charge Controller by Congsin
Smart control for your off-grid solar power system – Designed for 12V and 24V setups in RVs, marine systems, and remote power stations.
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Whether you’re powering a campervan, remote cabin, or boat, the Congsin 20A solar charge controller ensures your battery remains efficiently charged and protected. Its PWM charging technology supports stable current flow for lead-acid, gel, and sealed batteries.
🔋 Key Benefits
- 20A Rated Current – suitable for solar arrays up to 240W (12V) or 480W (24V)
- Auto 12V/24V battery voltage recognition
- Dual USB Output – 5V 1A for charging small devices
- LCD screen – displays input/output voltage and system status
- Multi-layer protection – overvoltage, short circuit, reverse polarity
- Compatible with lead-acid, sealed, and gel batteries
🔧 Technical Specs
| Specification | Details |
|---|---|
| Rated Voltage | 12V/24V Auto |
| Max PV Input | 50V |
| USB Output | 5V 1A ×2 |
| Operating Temp | -35°C ~ +60°C |
| Certifications | CE / FCC / RoHS / LVD |
🏕️ Application Scenarios
- Solar kits for RV, camper vans & trailers
- Off-grid cabin and shed systems
- 12V marine battery charging systems
- Portable power stations & solar suitcase kits
