Description
Key Features
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High-Voltage MPPT (145V): Supports a Maximum PV Open Circuit Voltage of 145V, enabling users to connect solar panels in series (up to 3-4 panels typical) to minimize wiring costs and transmission losses.
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Advanced Tracking Technology: Quickly scans the entire I-V curve to track the optimal power point, ensuring high conversion efficiency of up to 98% even in cloudy conditions.
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12V/24V Auto Detection: Automatically detects 12V or 24V system voltage upon startup (for lead-acid), simplifying installation.
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Multi-Battery Compatibility: Pre-set charging programs for AGM, GEL, and Flooded batteries, plus a User/Lithium mode for custom settings.
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Smart 3-Stage Charging: Extends battery life with intelligent Bulk, Absorption, and Float charging stages, plus temperature compensation to prevent over/under-charging.
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Data Communication: Built-in RS485 interface allows for remote monitoring and system integration.
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Comprehensive Protection: Protects against PV reverse polarity, battery over-charge, battery reverse connection, and over-temperature.
Applications
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RV & Camper Solar: The high voltage input allows for using residential grid-tie panels on RV roofs.
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Off-Grid Cabins: Efficiently charges 12V or 24V battery banks for lighting and small appliances.
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Remote Monitoring Systems: Reliable power regulation for remote sensors or communication equipment.
Core Specifications Table
| Model | PC18-3015A | PC18-4015A |
| Rated Charge Current | 30A | 40A |
| System Voltage | 12V / 24V Auto | 12V / 24V Auto |
| Max PV Voltage (VOC) | 145VDC | 145VDC |
| MPPT Voltage Range | 60 ~ 130VDC | 60 ~ 130VDC |
| Max PV Input Power (12V) | 432W | 576W |
| Max PV Input Power (24V) | 864W | 1152W |
| Max Efficiency | 98% | 98% |
| Communication | RS485 | RS485 |
| Dimensions (mm) | 187 * 255 * 72 | 187 * 255 * 72 |
| Cooling | Automatic Cooling (Heatsink) | Automatic Cooling (Heatsink) |
| Protection Rating | IP30 | IP30 |