Sapphire Energy
Smart Dual-Input PWM Solar Charge Controller (12V / 24V)
Smart Dual-Input PWM Solar Charge Controller (12V / 24V)
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Smart Dual-Input PWM Solar Charge Controller with USB & Load Control
This smart PWM solar charge controller is designed for clean installs, simple setup, and everyday reliability. With dual PV input terminals, a higher-than-average 50V solar input rating, built-in USB charging, and a programmable load output, it’s an excellent fit for budget compact off-grid systems — especially 200–300W solar arrays on 12V battery banks.
Key Features
- Dual Solar Inputs (Parallel-Friendly) – Two PV input terminals make parallel panel wiring simpler and cleaner.
- Higher PV Voltage Rating – Supports up to 50V solar input, providing added headroom in cold conditions.
- 12V / 24V System Support – Manual selection or automatic voltage detection.
- Wide Battery Compatibility – Supports Lithium (LiFePO₄), Lead-Acid, AGM, and Gel batteries.
- Integrated LCD Display – Clear real-time visibility of charging and system status.
- 2× Built-In USB Outputs – Convenient charging for phones, tablets, and small electronics.
Designed for Safer, Cleaner Installs
- Plastic terminal dividers help prevent short circuits caused by stray wire strands.
- Large screw terminals easily accept up to 10 AWG wire.
- Heavier internal construction for improved durability and heat handling.
- Built-in protection against over-charge, over-discharge, reverse polarity, short circuit, and over-temperature.
Smart Load Output with Dusk-to-Dawn Control
A dedicated load output allows you to power DC accessories directly from the controller — ideal for lighting and small utility loads.
- Dusk-to-dawn mode with a programmable timer to automatically turn off after a set number of hours.
- 24-hour ON mode for continuous operation.
- Manual load control using the front-panel SET button.
Simple, Intuitive Programming
Programming is straightforward and user-friendly. Simply press and hold MENU for a few seconds to adjust system parameters directly on the display. No confusing button sequences or hidden menus.
Multiple controllers can be used in parallel on the same battery bank, allowing you to add more solar panels economically and increase overall charging capacity without upgrading to a larger single controller.
Why You’ll Love This Controller
- Cleaner wiring with dual PV inputs
- Extra safety from insulated terminal spacing
- Ideal match for 200–300W solar arrays on 12V systems
- Fast, frustration-free setup
- Built-in USB and load control reduce extra components
Specifications
| System Voltage | 12V / 24V (Manual or Auto-Detect) |
|---|---|
| Controller Type | PWM |
| Maximum PV Input Voltage | 50V |
| Suggested PV Input | 260W @ 12V / 520W @ 24V |
| Battery Types | LiFePO₄ (4s/8s), Lithium Ion (3s/6s), Lead-Acid |
| Boost Charging Voltage | 14.4V (default, adjustable) |
| Low Voltage Disconnect | 10.7V (default, adjustable 9–12V) |
| Low Voltage Recovery | 12.6V (default, adjustable 11–13.5V) |
| Solar Inputs | 2× PV Inputs (Paralleled, Non-Isolated) |
| Load Output | Programmable (Dusk-to-Dawn w/ Timer or 24H ON) Manual ON/OFF |
| USB Outputs | 2× USB Ports (2A) |
| Terminal Wire Size | Up to 10 AWG |
| Reverse Polarity Protection | YES |
| Load Over-Current Protection | YES (2 min auto-reset) |
| Working Temperature | -10°C to +50°C |
| Ingress Rating | IP32 |
| Safety Features | Short Circuit, Open Circuit, Over Current, Overcharge, Over Discharge, Polarity Protection |
| Display | Integrated LCD with Front-Panel Controls |
Battery Mode Note: For most lead-acid batteries use B1. For most LiFePO₄ batteries use B3. Additional battery mode options and details are listed in the manual.
What’s Included
- Smart Dual-Input PWM Solar Charge Controller
- User Manual
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