1. Introduction
The SRNE HF series is a new hybrid solar charge inverter, integrating solar energy storage, mains charging energy storage, and AC sine wave output. Utilizing DSP control and an advanced control algorithm, it offers high response speed, reliability, and industrial standard performance.
Key features include:
- Full digital voltage and current double closed-loop control, advanced SPWM technology, output of pure sine wave.
- Two output modes: mains bypass and inverter output; uninterrupted power supply.
- Four charging modes: Only Solar, Utility Priority, PV Priority, and Utility & Solar hybrid charging.
- Advanced MPPT technology with an efficiency of 99.9%.
- LCD screen and 3 LED indicators for dynamic display of system data and operating status.
- Manual ON/OFF switch controlling AC output.
- Power saving mode to reduce empty load loss.
- Intelligent variable speed fan for efficient heat dissipation and extended system life.
- Lithium battery activation by PV solar or mains, allowing access of lead-acid battery and lithium battery.
- Comprehensive protections: short circuit, over voltage, under voltage, overload, reverse protection, etc.
2. Package Contents
Upon unpacking, please ensure all items are present and undamaged:
- All-in-one Solar Charge Inverter (x1)
- User Manual (x1)
- M5 Screws (x4)
- Terminal Blocks (x2)

3. Setup and Installation
Important Safety Notice: This product is for indoor use only. It is forbidden to use it outdoors.
3.1 Product Overview and Connections
Familiarize yourself with the inverter's ports and controls:

Port Descriptions:
- Overload protector
- ON/OFF rocker switch
- AC input port
- AC output port
- Grounding screw hold
- RS485-2 communication port
- USB communication port
- RS485-1 communication port
- Dry contact port
- Cooling fan
- Battery port
- PV port
- Touch the key lightly
- Indicator light
- LCD screen
3.2 Product Connection Diagram
The inverter connects to PV panels, an external battery bank, and household loads. It can also integrate with a generator or utility power.

The inverter is compatible with various 48V battery types, including Lead-Acid (Sealed/AGM/Flooded/GEL) and Lithium batteries. A 48V battery is necessary for operation.

3.3 Wi-Fi Module Installation and Setup
The inverter supports an optional Wi-Fi module for remote monitoring and control.

Wi-Fi PlugPro Quick Installation Guideline (MS-W-09):
- Installation: Connect the 4PIN aviation plug of the Wi-Fi PlugPro to the power cable aviation side and tighten it. Connect the other side of the power cable to the inverter. Check the working status of the LED indicator (after step 2.3, when 4 LED indicators keep on, showing the normal working status).
- Wireless Router Connection:
- Open the APP, tap the Wi-Fi Config button to enter this page.
- Then tap the Network Setting button.
- Network Setting: According to the prompts, type in the information to finish the network setting. After the Wi-Fi PlugPro is restarted, reconnect the Wi-Fi when prompted by step 2.1.
- Create Account and Datalogger:
- Create Account: Open the APP, tap the Register button. According to the prompt information, complete creating an account.
- Add Datalogger: Login the account and click the list button on the bottom of the home page. Tap the "+" button on the top-right corner of the list page. Scan the datalogger PN on the Wi-Fi PlugPro, or input it manually. According to the prompts, type in the information to finish add datalogger.
LED Indicators:
- PWR: Power Status LED indicator
- COM: Communication Status LED indicator
- NET: Network Status LED indicator
- ERR: Error Status LED indicator
4. Operating Modes
The inverter offers flexible charging and output modes to suit various energy management needs.
4.1 Charging Modes
You can select from four distinct charging modes:
- Solar Charging ONLY: Prioritizes solar power for battery charging.
- Electricity Utility Priority: Prioritizes utility power for battery charging.
- Solar Priority: Prioritizes solar power for both charging and load supply.
- Hybrid Charging: Combines solar and utility power for optimal charging.
4.2 Load Output Modes
Three load output modes are available:
- PV Priority: Solar power is prioritized to supply the load.
- Utility Priority: Utility power is prioritized to supply the load.
- Inverter Mode: The inverter supplies power from the battery to the load.

4.3 Product Overview Video
5. Maintenance
To ensure optimal performance and longevity of your SRNE Hybrid Solar Inverter, regular maintenance is recommended:
- Cleaning: Periodically clean the exterior of the inverter with a dry, soft cloth. Ensure ventilation openings and cooling fans are free from dust and debris. The intelligent variable speed fan helps dissipate heat efficiently, but external dust can hinder its performance.
- Connections: Regularly check all electrical connections (PV, battery, AC input/output) to ensure they are secure and free from corrosion. Loose connections can lead to poor performance or safety hazards.
- Environment: Ensure the inverter is operated within its specified temperature and humidity ranges. Avoid exposing it to direct sunlight, moisture, or corrosive substances.
- Firmware Updates: If available, check for and apply any firmware updates to ensure the inverter operates with the latest features and bug fixes. This can often be done via the Wi-Fi module and SmartESS app.
6. Troubleshooting
This section provides general guidance for common issues. For complex problems, please contact customer support.
- No Power Output: Check all input connections (PV, AC input, battery). Ensure the ON/OFF switch is in the 'ON' position. Verify battery voltage is within the operating range. Check for any fault indicators on the LCD or LEDs.
- Charging Issues: Confirm PV panels are receiving adequate sunlight and are correctly connected. Check AC input if using utility charging. Verify battery type settings are correct.
- Overload Protection: If an overload fault occurs, reduce the connected load. The inverter has overload protection that will shut down the output.
- Wi-Fi Connection Problems: Ensure the Wi-Fi PlugPro is correctly installed and its LEDs indicate normal operation. Check your router settings and ensure the inverter is within range. Refer to the Wi-Fi PlugPro Quick Installation Guideline (Figure 3.4).
If the fault persists, record any error codes or indicator patterns and contact customer support for further assistance.
7. Specifications
Detailed technical specifications for the SRNE HF4850S80-H Hybrid Solar Inverter:
| Category | Parameter | Value (HF4850S80-H) |
|---|---|---|
| General | Model Number | HF4850S80-H |
| Type | DC/AC Inverters | |
| Size | 426mm*322mm*126mm | |
| Weight | 12KG | |
| IP Grade | IP 20 | |
| Operating Temperature Range | -15°C to 55°C | |
| AC Mode | Rated input voltage | 200/230VAC |
| Input voltage range | (170Vac~280Vac) ±2%; (90Vac-280Vac) ±2% | |
| Frequency | 50Hz/60Hz (auto-sensing) | |
| Frequency Range | 47±0.3Hz-55±0.3Hz (50Hz)/57±0.3Hz-65±0.3Hz (60Hz) | |
| Overload/Short circuit protection | Breaker | |
| Maximum bypass overload current | 40A | |
| Inverting Mode | Output voltage waveform | Pure sine wave |
| Rated output power (VA) | 5000VA | |
| Rated output power (W) | 5000W | |
| Peak power | 10000VA | |
| Output AC Voltage | 230Vac (200/208/220/240Vac settable) | |
| Output Frequency | 50Hz/60Hz | |
| Efficiency | >95% | |
| Battery & AC Charge | Rated Battery Voltage | 48V (minimum start-up voltage 44V) |
| Battery type | Lead Acid or Lithium | |
| Maximum Charging Current (AC) | 40A | |
| Charge voltage range | 40-60Vdc | |
| Overload / Short circuit Protection | Breaker | |
| Solar Charge (MPPT) | Output Current | MPPT 80A |
| Recommended PV Max | 500Vdc | |
| PV operation voltage range | 120-500Vdc | |
| MPPT voltage range | 120-450Vdc | |
| Protection | Wiring Protection | Reverse Polarity |
| Charge short-circuit protection | Blown fuse | |
| Communication | Communication interface | USB/RS485 (WiFi/GPRS)/dry node control |
8. User Tips
Based on common user inquiries and experiences, consider the following tips:
- Battery Capacity Matching: The battery capacity of the correct matching system is crucial. It should be determined according to the specific usage requirements of your load and application scenarios. Incorrect matching can lead to insufficient battery capacity or excessive waste of power generation. Always refer to the manual's recommendations or consult with a qualified professional.
- Indoor Use Only: Adhere strictly to the warning that this product is for indoor use only. Outdoor exposure can damage the unit and void warranty.
- Wi-Fi Module: If your model includes the Wi-Fi module, ensure proper installation and configuration using the SmartESS app for remote monitoring and control. This can greatly enhance convenience in managing your solar system.
9. Warranty and Support
For warranty information, technical support, or service inquiries, please contact the seller or manufacturer directly. Details regarding warranty duration and service centers may vary by region. It is recommended to retain your purchase receipt for warranty claims.
For any questions regarding the product's functionality or troubleshooting, please refer to this manual or reach out to the official support channels.