1. Introduction
The Temank PowMr 3500W Pure Sine Wave Power Inverter converts 24V DC battery power to 110V AC household electricity. This inverter is designed to provide clean, stable power suitable for sensitive electronics, making it ideal for off-grid solar systems, recreational vehicles (RVs), trucks, and various off-grid applications. It features advanced safety protections and a remote control panel for convenient monitoring and operation.
2. What's in the Box
Upon unpacking your PowMr 3500W Pure Sine Wave Power Inverter, please ensure all items listed below are present:
- Power Inverter Unit
- Battery Cables (4AWG)
- Remote Control Meter
- Spare Fuses
- Instruction Manual

3. Safety Information
Read all safety instructions carefully before installation and operation. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Proper Ventilation: Ensure the inverter is installed in a well-ventilated area to prevent overheating. Maintain at least 20cm of clear space around the inverter for adequate airflow.
- Correct Polarity: Always connect the battery cables with correct polarity (positive to positive, negative to negative). Reverse polarity can severely damage the inverter and battery.
- Grounding: The inverter must be properly grounded. Connect the grounding terminal to an appropriate earth ground.
- Dry Environment: Install the inverter in a dry, temperature-appropriate environment. Avoid exposure to water, moisture, or flammable materials.
- Not Grid-Tie Compatible: This inverter is designed for off-grid applications only. Do NOT connect it to a public utility grid.
- Built-in Protections: The inverter includes overload, short-circuit, over-temperature, and reverse polarity protection. It also features low/high voltage cut-off and automatic recovery to safeguard your battery and connected devices.

4. Setup and Installation
4.1 Mounting the Inverter
Choose a suitable location for mounting the inverter. Ensure the surface is stable and can support the weight of the unit. Leave adequate space around the inverter for proper ventilation and heat dissipation.

4.2 DC Connection (Battery)
Connect the provided 4AWG battery cables to the inverter's DC input terminals and then to your 24V battery bank. Always ensure correct polarity: red cable to positive (+) terminal and black cable to negative (-) terminal. Tighten all connections securely using the included tools.

For a visual guide on connecting your solar system, including the inverter, please refer to the video below:
4.3 AC Connection (Output)
Once the DC connections are secure, you can connect your AC appliances to the 110V AC output ports on the inverter. The inverter provides a pure sine wave output, safe for sensitive electronics.

For a detailed explanation of AC output modes and wiring, please refer to the video below:
5. Operating Instructions
5.1 Powering On/Off
After all connections are made and verified, flip the main power switch on the inverter to the 'ON' position. The LCD display will illuminate, showing real-time operational data.
5.2 Remote Control Panel
The included remote control panel allows you to monitor battery voltage, power output, and fault alerts from a convenient location. The LCD display on the remote provides real-time data for easy system management.


6. Specifications
- Continuous Output Power: 3500W
- Peak Power Rating: 7000W
- Nominal Efficiency: > 85%
- Input DC Voltage: 24V
- Output AC Voltage: 110V
- Output Frequency: 50Hz/60Hz (selectable)
- Output Waveform: Pure Sine Wave
- USB Port: 5V/2.4A
- Operating Temperature Range: -25°C to 55°C
- Item Weight: 11.88 pounds
- Package Dimensions: 15.75 x 9.5 x 8.5 inches
7. Troubleshooting
If the inverter is not functioning as expected, check the following common issues:
- No Power Output: Verify battery connections are secure and polarity is correct. Check if the inverter's power switch is ON. Ensure battery voltage is within the operating range.
- Overload Alarm: Reduce the total load connected to the inverter. The inverter will automatically shut down if overloaded to prevent damage.
- Low/High Voltage Alarm: Check your battery voltage. Recharge or replace the battery if voltage is too low or too high.
- Over-temperature Alarm: Ensure the inverter is in a well-ventilated area and cooling fans are not obstructed. Allow the unit to cool down.
- Short Circuit: Disconnect all loads and check for any short circuits in your wiring or appliances.
For more detailed troubleshooting steps, please refer to the comprehensive instruction manual included with your product.
8. Maintenance
The PowMr 3500W Pure Sine Wave Power Inverter requires minimal maintenance. Regularly inspect all cable connections for tightness and corrosion. Keep the inverter's ventilation openings clear of dust and debris to ensure efficient cooling. Operate the inverter within its specified temperature range (-25°C to 55°C) for optimal performance and longevity.
9. Warranty and Support
This product may be eligible for extended protection plans. Please refer to the product packaging or contact your retailer for details on available 2-Year or 3-Year Protection Plans. For technical support or warranty claims, please consult the contact information provided in the detailed manual or on the manufacturer's website.





