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Advanced 4-Stage PWM Technology: The ROCKSOLAR 20A Solar Charge Controller incorporates smart PWM (Pulse Width Modulation) technology, providing a highly efficient 4-stage charging process. This includes Bulk, Absorption, Float, and Equalization stages, ensuring optimal battery protection and charging efficiency.
IP67 Rated Waterproof Design: Built to endure challenging outdoor conditions, the ROCKSOLAR 20A Controller is IP67 rated for waterproofing. It continues to function seamlessly in the presence of water spray, rain, or condensation, making it ideal for outdoor solar applications.
Multiple Intelligent Protections: Equipped with extensive protective features, the ROCKSOLAR 20A Controller safeguards against reverse polarity, overcharge, short-circuit, reverse current, overload, and over-discharge. These intelligent protections guarantee the safety of your battery and the controller's operation.
Backlit LCD Display System: The controller boasts a backlit LCD display, offering real-time insights into charging current, generated energy, temperature, battery voltage, and error codes. This feature enables effective monitoring and management of the charging process.
Versatile Battery Support: Capable of automatically detecting 12V or 24V system voltages, the ROCKSOLAR 20A Controller is compatible with Gel, AGM, Flooded, and Lithium batteries. Its Lithium activation feature allows for efficient charging of lithium-based batteries.
| Specification | Details |
|---|---|
| Model | POW-Keeper1220 |
| PV Input | Max Open Voltage of PV Module: 55Vdc |
| MPP Tracking Efficiency | 99.50% |
| Light Control Voltage | 5V |
| Charge Mode | 3 Stage Charge Algorithm |
| Battery Type | Lithium and Lead Acid Battery |
| Nominal System Voltage | 12/24V |
| Rated Charging Current | 20A |
| Battery Voltage Range | 8~32V |
| High Voltage Disconnection | 16V (24V x 2) |
| Duration for Absorption Charging | 2 hours |
| Charge Loop Voltage Drop | ≤0.29V |
| Self-consumption | ≤ 9.2mA 12V; ≤ 11.7mA 24V |
| Equalized Charging Voltage | AGM: 14.6V; GEL: No; FLd: 14.8V |
| Absorption Charging Voltage | AGM: 14.4V; GEL: 14.2; FLd: 14.6V |
| Floating Charging Voltage | AGM/ GEL/ FLd: 13.8V |
| Low Voltage Re-connection (LVR) | AGM/ GEL/ FLd: 12.6V |
| Low Voltage Disconnection (LVD) | AGM/ GEL/ FLd: 10.8V |
| Operating Temperature Range | -20℃~55℃ (Full rated current) |
| LCD Temperature Range | -20℃~70℃ |
| Humidity Range | ≤95% No condensation |
| Protection Class | IP30 |
| Dimensions | 123*178*48 mm |
| Installation Hole | 108*120 ∅5 |
The 4-stage PWM (Pulse Width Modulation) technology in the ROCKSOLAR 20A Controller includes Bulk, Absorption, Float, and Equalization charging stages, providing efficient and safe battery charging, maximizing battery life, and enhancing overall system performance.
Yes, the ROCKSOLAR 20A Solar Charge Controller is designed with an IP67 rated waterproof design, making it fully operational in various outdoor conditions, including exposure to water, rain, or condensation.
The ROCKSOLAR 20A Controller is compatible with multiple battery types, including AGM, GEL, Lithium-ion, and LiFePo4, making it versatile for different solar power setups.
The backlit LCD display on the ROCKSOLAR 20A Controller shows real-time information like charging current, generated energy, temperature, and battery voltage. This allows for effective monitoring and control of the charging process.
The ROCKSOLAR 20A Controller includes multiple protections against reverse polarity, overcharge, short-circuit, reverse current, overload, and over-discharge, ensuring the safety and longevity of your battery and solar system.
