1. Product Overview
The SUNGOLDPOWER 4000W 12V Inverter Charger is a versatile power solution designed for off-grid systems, RVs, trailers, motorhomes, and backup power applications. It integrates an inverter, battery charger, and transfer switch into a single unit, providing reliable pure sine wave output suitable for sensitive electronics.
Figure 1.1: Front view of the SUNGOLDPOWER 4000W 12V Inverter Charger.
Key features of this inverter charger include:
- Powerful Inverter: 4000-watt continuous power with a 12000W peak surge capacity for 20 seconds, ensuring robust performance for various loads.
- Integrated Charger: Features a 120A battery charger for efficient battery replenishment.
- Automatic Transfer Switch: A 30A transfer switch allows seamless transition between AC sources and battery power.
- Pure Sine Wave Output: Provides clean and stable power, safe for sensitive electronic devices.
- LCD Remote Controller: Includes a handy remote control with an LCD display and battery temperature sensor for convenient monitoring and control.
- Adjustable Charge Current: Allows adjustment of charge current from 0-100% to suit different battery types and charging needs.
- Multiple Battery Compatibility: Supports AGM, Gel, Lead-acid, Lithium-ion and LiFePO4 batteries with multi-stage charging.
- Safety Protections: Equipped with over/low voltage, over temperature, overload, short circuit, and back feeding protections.
Figure 1.2: Overview of key features including power ratings and output type.
2. Setup and Installation
Before installation, ensure all components are present and undamaged. The package typically includes:
- 1 x 4000W 12V Inverter Charger Unit
- 1 x LCD Remote Control with 32 feet cable
- 1 x Battery Temperature Sensor with 32 feet cable
- 1 x User's Manual (this document)
Figure 2.1: Contents typically included in the product package.
2.1 Connection Diagram
Refer to the following diagram for proper connection of the inverter charger to your power system. Ensure all connections are secure and follow local electrical codes.
Figure 2.2: Typical connection diagram showing utility power, generator, solar panel, battery bank, and home appliances.
2.2 Battery Connection
Connect the inverter charger to your battery bank using appropriate gauge wiring. This inverter supports a variety of battery types:
- Lead-Acid
- GEL
- AGM
- Lithium-ion
- LiFePO4
The inverter features multi-stage charging and a battery temperature sensor to protect your batteries from overheating and optimize charging performance.
Figure 2.3: Visual representation of compatible battery types.
2.3 AC Input and Output Connections
The inverter charger accepts 220-240V AC input and provides 110-120V/220-240V split phase output. Ensure correct wiring for AC input from utility power or a generator, and AC output to your home or RV appliances. The unit includes two multi-functional AC output sockets.
Figure 2.4: Rear view of the inverter charger, highlighting AC terminals and output protection.
3. Operating Instructions
Once properly installed, the inverter charger can be operated via its integrated controls and the remote LCD display.
3.1 LCD Remote Controller
The remote LCD controller provides real-time data on battery voltage, input/output voltage, load percentage, and operational status. Use the display to monitor the system's performance and adjust settings.
Figure 3.1: The inverter charger unit with its remote LCD display.
3.2 DIP Switch Settings
The inverter charger features DIP switches for customizing various operational parameters, including:
- Utility/Battery Priority: Set whether the system prioritizes AC utility power or battery power.
- Low Voltage Cut-off: Customize the battery voltage threshold at which the inverter will shut down to protect batteries.
- Charge Current Adjustment: Fine-tune the battery charging current (0-100%).
- Automatic Generator Start (AGS): Configure settings for automatic generator activation when battery voltage is low or load demand is high.
Refer to the detailed instructions in the full user manual (PDF) for specific DIP switch configurations.
4. Maintenance
To ensure optimal performance and longevity of your SUNGOLDPOWER Inverter Charger, regular maintenance is recommended:
- Keep Clean: Periodically clean the exterior of the unit and ensure ventilation openings are free from dust and debris to prevent overheating.
- Check Connections: Regularly inspect all electrical connections (DC and AC) for tightness and corrosion. Loose connections can lead to poor performance or safety hazards.
- Battery Health: Monitor battery voltage and temperature via the LCD display. The built-in battery temperature sensor helps protect your battery from overcharge or discharge.
- Environmental Conditions: Ensure the inverter is operated within its specified temperature and humidity ranges. Avoid exposure to direct sunlight or excessive moisture.
5. Troubleshooting
This section provides guidance for common issues. For detailed troubleshooting steps and error codes, please refer to the official Troubleshooting Guide PDF available for download.
Common Issues and Solutions:
- No Power Output:
- Check battery connections and voltage.
- Verify AC input source is active.
- Ensure the inverter is turned on.
- Check for tripped circuit breakers on the unit or in your electrical panel.
- Overload Protection Triggered:
- Reduce the connected load. The inverter has a 4000W continuous rating and 12000W peak for 20 seconds.
- Disconnect appliances and reconnect them one by one to identify the problematic device.
- Over Temperature Protection:
- Ensure adequate ventilation around the unit.
- Clear any obstructions from the cooling fan.
- Allow the unit to cool down before restarting.
- Low Battery Trip Point:
- Recharge batteries.
- Adjust the low battery trip point via DIP switch SW1 if necessary (refer to full manual).
6. Specifications
| Feature | Detail |
|---|---|
| Model Name | SPLFP4012 |
| Wattage | 4000 watts (Continuous) |
| Peak Wattage | 12000 watts (for 20 seconds) |
| Input Voltage | 12V DC, 220-240V AC |
| Output Voltage | 110-120V/220-240V AC Split Phase |
| Output Waveform | Pure Sine Wave |
| Battery Charger Current | 120A |
| Transfer Switch Current | 30A |
| Product Dimensions | 25.6 x 9.1 x 7.5 inches |
| Item Weight | 58.9 pounds |
| Manufacturer | SUNGOLDPOWER |
7. Warranty and Support
SUNGOLDPOWER provides a 12-month warranty for the 4000W 12V Inverter Charger, covering manufacturing defects and malfunctions under normal use. Additionally, lifetime technical service is provided by SUNGOLDPOWER, a professional manufacturer with over 10 years of experience in the inverter business.
For technical assistance, warranty claims, or any product-related inquiries, please contact SUNGOLDPOWER customer support through their official channels. Refer to the contact information provided in your product packaging or on the manufacturer's website.
