1. Introduction
This manual provides essential information for the safe and efficient operation of your PowMr Hybrid Solar Inverter. Please read this manual thoroughly before installation and use. Keep this manual for future reference.
The PowMr Hybrid Solar Inverter is a versatile device designed to integrate solar power, utility power, and battery power to provide a reliable energy supply for various applications. It features a pure sine wave output, MPPT solar charge controller, and compatibility with multiple battery types.

2. Safety Instructions
WARNING: Installation and maintenance must be performed by qualified personnel only. Incorrect installation can lead to electric shock, fire, or other hazards.
- Ensure all wiring is correctly sized and properly insulated.
- Always disconnect all power sources (solar, utility, battery) before performing any maintenance or wiring.
- Do not attempt to disassemble or repair the inverter yourself. Contact qualified service personnel.
- Install the inverter in a well-ventilated area, away from flammable materials and moisture.
- Ensure proper grounding of the inverter.
- The inverter is designed for indoor use unless specified otherwise.
- This inverter is a single-phase 220V inverter. If you have a single-phase 110V output requirement, you will need to connect an external transformer for conversion.

3. Product Features
- Pure Sine Wave Inverter: Provides high-quality AC power suitable for sensitive electronics.
- Configurable Input Voltage Range: Adjustable settings for home appliances and personal computers via LCD.
- Configurable Battery Charging Current: Customize charging current based on application needs via LCD.
- Configurable AC/Solar Charger Priority: Set preferred charging source (AC or Solar) via LCD.
- Compatible with Mains Voltage or Generator Power: Flexible power input options.
- Auto Restart: Automatically restarts when AC power recovers.
- Comprehensive Protection: Includes overload, over-temperature, and short-circuit protection.
- Smart Battery Charger Design: Optimized for enhanced battery performance.
- Cold Start Function: Allows the inverter to start directly from batteries without AC input.
- Multiple Battery Type Compatibility: Supports AGM, GEL, Flooded, Lithium, Sealed Lead Acid, and User-Defined battery types.
- Optional WiFi Module: For remote monitoring and control via the 'SMARTESS' app (additional purchase required).
4. Setup and Installation
4.1 System Overview
The hybrid solar inverter integrates solar power, utility power, and battery storage to supply power to household appliances. It can operate with or without batteries.

4.2 Wiring Diagram (Example for 1600W 12V DC Model)
The following diagram provides a general wiring guide. Always consult a qualified electrician for installation and adhere to local electrical codes.

4.3 Battery Connection
The inverter is compatible with various battery types. Ensure correct polarity when connecting batteries.

4.4 Remote Monitoring (Optional)
For remote monitoring and control, an optional WiFi module can be purchased separately. Download the 'SMARTESS' app from the App Store or Google Play.

5. Operating Instructions
5.1 LCD Display and Indicators
The inverter features an LCD display and LED indicators to show real-time operational status and charging information. Use the function buttons (ESC, UP, DOWN, ENTER) to navigate menus and configure settings.

5.2 Charging Modes
The inverter offers multiple charging source priority settings:
- Utility/AC Power Charge Battery First: Prioritizes charging from the utility grid or generator.
- Solar Power Charge Battery First: Prioritizes charging from solar panels.
- Solar + Utility Charge Battery at the Same Time: Uses both solar and utility/AC power for charging.
- ONLY Solar Charge Battery: Charges exclusively from solar power.

5.3 Output Priority Modes
The inverter also allows configuration of output source priority:
- Utility Source Power Load First: Prioritizes drawing power from the utility grid for the load.
- Solar Power Load First: Prioritizes drawing power from solar panels for the load.
- Solar + Battery Power Load at the Same Time: Uses both solar and battery power to supply the load.

5.4 LED Indicator Patterns
The inverter's logo light changes color to indicate the current working mode:
- Stationary Mode: No light.
- PV Mode: Purple light.
- Utility Mode: Blue light.
- Battery Mode: Red light.

6. Maintenance
- Regular Cleaning: Keep the inverter's ventilation openings clear of dust and debris to ensure proper airflow and prevent overheating. Use a dry cloth for cleaning.
- Connection Checks: Periodically inspect all electrical connections (battery, solar, utility, load) for tightness and signs of corrosion. Tighten any loose connections.
- Battery Inspection: Check battery terminals for corrosion and ensure they are clean and secure. For liquid-filled batteries, check electrolyte levels and top up with distilled water if necessary.
- Environmental Conditions: Ensure the installation environment remains within the specified temperature and humidity ranges.
- Firmware Updates: If using the optional WiFi module, check for available firmware updates through the 'SMARTESS' app to ensure optimal performance and access to new features.
- Professional Inspection: It is recommended to have a qualified technician inspect the system annually.
7. Troubleshooting
This section provides solutions to common issues. For problems not listed here, please contact customer support.
Common Issues and Solutions:
- Inverter Not Turning On:
- Check battery connections and voltage.
- Ensure the DC breaker is ON.
- Verify the AC input connection if operating in utility mode.
- No AC Output:
- Check for overload conditions; reduce load if necessary.
- Verify AC output breaker is ON.
- Check for fault codes on the LCD display.
- Battery Not Charging:
- Check solar panel connections and ensure sufficient sunlight.
- Verify utility/AC input if charging from grid/generator.
- Check battery charging current settings on the LCD.
- Ensure battery type is correctly configured.
- Fault Code Displayed:
- Refer to the specific fault code in the detailed product manual (if available) or contact customer support with the code.
- Common fault codes relate to over-voltage, under-voltage, over-temperature, or short circuits.
8. Specifications
The PowMr Hybrid Solar Inverter series includes several models with varying capacities. Below are general specifications and specific details for some models.
General Specifications:
- Output Type: DUAL
- Output Frequency: 50Hz
- Output Current: 220V
- Is Smart Device: Yes
- Origin: Mainland China
- Certification: CE, RoHS, FC
Model Specific Specifications:
| Feature | POW-HVM6.2M-48V-N | POW-HVM4.2M-24V-N | POW-HVM3.2H-24V-N | POW-HVM2H-12V-N |
|---|---|---|---|---|
| AC Output Power | 6.2KW | 4.2KW | 3.2KW | 1.6KW |
| Battery Voltage | 48V | 24V | 24V | 12V |
| Max. PV Array Open Circuit Voltage | 500Vdc | 500Vdc | 400Vdc | 400Vdc |
| Max. AC Charging Current | 120A | 120A | 80A | 80A |
| Starting Voltage | 150V | 150V | 120V | 60V |
| No-load Power Consumption | 35W | 35W | 35W | 35W |
| Max. PV Array Power | 6500W | 6500W | 3200W | 2000W |
| Size (L*W*H) | 50*40*18CM | 50*40*18CM | 50*40*18CM | 50*40*18CM |
| Weight | 10KG | 10KG | 10KG | 10KG |
Compliance: The inverter is certified with CE and RoHS. For specific European standards, it is important to verify compliance with IEC 62109-1 / 62109-2 (inverter safety), EN 61000-x (electromagnetic compatibility), and EN 50549-1 or similar grid connection standards, depending on local regulations.
9. User Tips
- Battery Type Configuration: When using Lithium batteries, ensure you set the battery type to 'LIb' in the inverter's settings. The inverter will then activate the Lithium battery using solar energy after approximately 3 seconds.
- 110V Output: If your household appliances require 110V output, and the inverter is a single-phase 220V model, you must connect an external transformer for voltage conversion.
- Monitoring: Utilize the optional WiFi module and 'SMARTESS' app for convenient remote monitoring of your system's performance and status.
- Grounding: Always ensure the PE (Protective Earth) protective conductor is connected first during installation for safety.
10. Warranty and Support
PowMr offers a 2-year warranty for this product. For technical support, warranty claims, or further assistance, please contact your seller or refer to the official PowMr support channels.





