1. Introduction and System Overview
This manual provides essential information for the safe and efficient operation of your PowMr 10KW Low Frequency Solar Inverter and Energy Storage Battery system. This integrated solution is designed to provide reliable power for various applications, including residential solar systems, yachts, RVs, and as a backup during power outages.


The system intelligently switches between inverter and bypass output to ensure stable power supply. It supports up to three times peak power, delivering up to 10KW with a 220V AC output. The MPPT voltage range is 60-150V, with a maximum photovoltaic input of 6400W. It is compatible with various lithium and lead-acid batteries and supports photovoltaic and grid charging with a maximum current of 120A.
2. Package Contents
Upon receiving your PowMr system, please verify that all items listed below are present and undamaged:
- 1 x PowMr Low Frequency Solar Inverter (POW-RELAB 10KE)
- 1 x PowMr Energy Storage Battery (POW-LIO48300-16S)
- 1 x User Manual (this document)
- 1 x Set of Screw Accessories for mounting
- 1 x Battery Fuse
- 1 x Pair of Battery Terminals
- 2 x Cable Holders
- 1 x Communication Cable
3. Product Features
The PowMr 10KW Low Frequency Solar Inverter and Energy Storage Battery system offers advanced features for optimal performance and safety:
- 10KW Pure Sine Wave Output: Provides clean and stable power suitable for sensitive electronics.
- Low Frequency Inverter: Designed for robust performance in various UPS application scenarios.
- Battery Compatibility: Supports both lithium and lead-acid battery energy storage systems.
- High Charging Current: Solar charging current up to 120A, ensuring fast and efficient battery charging.
- Intelligent Energy-Saving (Eco Mode): Optimizes power consumption to reduce energy waste.
- Smart Touchscreen: Intuitive display interface for easy monitoring of battery operating data, status, and configuration of communication protocols.
- Intelligent Management System (BMS): High-quality Battery Management System provides comprehensive safety for energy storage, continuously monitoring and adjusting battery status to extend service life.
- Safe Power Design: Low-voltage switch design ensures safe power-on and reduces standby losses.
- Super-Ring-Transformator: Features a built-in oversized toroidal transformer for enhanced load-bearing capacity and stability.
- Multi-Protection Functions: Includes overload protection, charge short protection, AC reverse protection, short-circuit protection, bypass over current protection, battery over voltage protection, battery low voltage protection, and parallel connection error protection.




4. Setup & Installation
Proper installation is crucial for the safety and performance of your solar inverter and battery system. Please follow these general guidelines and consult the detailed instructions in the included user manual and any provided installation videos for specific wiring diagrams and steps.
4.1 Safety Precautions
- Ensure all power sources are disconnected before installation.
- Only qualified personnel should perform the installation.
- Wear appropriate personal protective equipment (PPE).
- Do not disconnect batteries while the unit is in operation.
4.2 Mounting and Ventilation
- Mount the inverter and battery in a well-ventilated, dry, and cool indoor environment.
- Ensure adequate clearance around the units for proper airflow and cooling.
- The energy storage battery is designed for easy installation, space-saving, and flexible assembly.

4.3 Wiring Connections
Refer to the detailed wiring diagram below for connecting solar panels, grid power, generator, battery, and loads to the inverter. Pay close attention to polarity and terminal labels.

- AC Input Terminal: Connect to the utility grid or generator.
- AC Output Terminal: Connect to your household loads.
- PV Input Terminal: Connect to your solar panel array.
- Battery Terminals (Negative/Positive): Connect to the energy storage battery. Ensure correct polarity.
- Communication Ports (RS232/RS485/CAN): For monitoring and advanced control.
- Battery Circuit Fuse: Ensure the fuse is correctly installed.
5. Operating Instructions
Once installed, the system can be operated via the intelligent touchscreen interface. The inverter offers various charging and output modes to suit your energy needs.
5.1 Powering On/Off
- Use the toggle switch on the inverter to power the unit ON or OFF.
- The low-voltage switch design ensures safe power-on.
5.2 Touchscreen Interface
The intuitive touchscreen allows you to:
- Monitor real-time battery operating data and system status.
- Configure various settings, including charging and output priorities.
- Access communication protocols.
5.3 Battery Charging Modes
The inverter supports three battery charging modes:
- Utility Priority: Prioritizes charging from the utility grid.
- Only Solar: Charges batteries exclusively from solar panels.
- Solar Priority: Prioritizes solar charging, using utility only when solar is insufficient.
5.4 Output Modes
The inverter offers three output modes:
- Utility Priority: Solar and battery supply the load only when utility is insufficient.
- Solar Priority: Solar and battery supply the load. In the absence of solar input, grid power supplies the load.
- Inverter Priority: Solar and battery supply the load. When no solar power is available, the battery will power the load (only use the power grid when the battery voltage drops to low battery warning).
5.5 Eco Mode
Activate Eco mode through the touchscreen to enable intelligent energy-saving functions, reducing standby losses and optimizing overall system efficiency.
6. Maintenance
Regular maintenance ensures the longevity and optimal performance of your PowMr system.
- Cleaning: Keep the inverter and battery surfaces clean and free from dust and debris. Ensure cooling fans are not obstructed.
- Connection Checks: Periodically inspect all wiring connections for tightness and signs of corrosion.
- Battery Health: The built-in Battery Management System (BMS) continuously monitors and adjusts battery status. Refer to the touchscreen for battery health indicators.
- Ventilation: Ensure the installation area remains well-ventilated to prevent overheating.
7. Troubleshooting
This section provides guidance on common issues. For complex problems, please contact customer support.
7.1 Common Issues and Solutions
- No Power Output: Check AC input, battery connections, and ensure the inverter is switched on. Verify no overload or short-circuit protection has been triggered (check error codes on the touchscreen).
- Battery Not Charging: Check solar panel connections and output, AC input, and selected charging mode. Ensure the maximum charging current is not exceeded.
- System Error/Fault Indicator: Refer to the touchscreen display for specific error codes and consult the full user manual for detailed explanations and troubleshooting steps. The system has multiple built-in protections (overload, short-circuit, battery over/low voltage) that may trigger a fault.
- Unstable Power Supply: Ensure all connections are secure. Check for proper ventilation.
7.2 User Tips
- Always refer to the complete user manual and any provided installation/operation videos for detailed instructions and wiring diagrams.
- Ensure the controller specifications (e.g., 30A) meet your system requirements.
- Utilize the intelligent touchscreen for real-time monitoring and configuration to optimize system performance.
- For any technical difficulties or questions, leverage the lifetime online support provided by the manufacturer via WhatsApp, Skype, WeChat, or Email.
8. Specifications
8.1 Inverter Specifications (POW-RELAB 10KE)
| Category | Parameter | Value |
|---|---|---|
| AC Input | Input Voltage Waveform | Sinusoidal (Utility or generator) |
| Nominal Input Voltage | 220Vac | |
| Input Voltage Range | 154~265Vac | |
| Nominal Input Frequency | 50Hz/60Hz | |
| AC Output (Off-grid) | Rated Output Power | 10000W |
| Peak Power | 30000W | |
| Output Frequency | 50Hz/60Hz | |
| Peak Efficiency | >98% | |
| Battery Parameters | Battery Type | Lithium and Lead Acid Battery, support user define |
| System Voltage | 48V | |
| AC Charging & Solar Charging Mode | Charging Algorithm | 3 stages |
| Max. AC Charging Current | 60A | |
| Max. PV Array Power | 6400W | |
| PV Array Max. Power Point Tracking Range | 60~150Vdc | |
| Max. Charging Current (AC+PV) | 120Amp | |
| General Parameters | Operating Temperature | -10°C to 50°C |
| Storage Temperature | -15°C to 50°C | |
| Dimensions | 545*400*200mm | |
| Net Weight | 51kg |
8.2 Energy Storage Battery Specifications (POW-LIO48300-16S)
| Parameter | Value |
|---|---|
| Battery Model | POW-LIO48300-16S |
| System Voltage | 51.2V |
| Rated Capacity | 316Ah |
| Nominal Energy | 16179.2Wh |
| Constant Voltage Charging Voltage | 58.4V |
| Recommended Discharge Cutoff Voltage | 48V |
| Max Charging Current (Icm) | 200A |
| Max Discharging Current | 200A |
| Max. No. of Parallel Connections | 16 |
| Communication Interface | RS232/RS485/CAN/Dry Contact |
| Operating Temp | Charging: 0~60°C; Discharging: -10°C~65°C |
| Storage Temperature | -10°C~30°C |
| IP Grade | IP21 |
| Recommended Operation Environment | Indoor |
| Dimensions (LxWxH) | 680*650*235mm |
| Net Weight | 110kg |
9. Warranty & Support
PowMr products are manufactured to high-quality standards. For warranty information and terms, please refer to the official product documentation or contact your vendor. In case of any technical issues or questions, lifetime online support is available through various channels.
9.1 Contact Support
For technical assistance, troubleshooting, or warranty claims, please contact PowMr customer support via:
- WhatsApp: +86 18900786512
- Email: 3509534322@qq.com
- WeChat: +8618900786512
Please have your product model and any relevant error codes ready when contacting support for faster service.





