1. Introduction
Thank you for choosing the EnginStar 300W Portable Power Station. This device is designed to provide reliable power for various indoor and outdoor activities, including camping, emergencies, and remote work. With its compact design and multiple charging options, it ensures your essential devices remain powered.
Package Contents:
- 1 x EnginStar 300W Portable Power Station
- 1 x 40W Foldable Solar Panel
- 1 x AC Home Charger
- 1 x Car Charger Cable
- 1 x User Manual

Image 1.1: EnginStar 300W Portable Power Station with included 40W Solar Panel. The power station features a handle for portability and multiple output ports.
2. Important Safety Instructions
- Do not disassemble, repair, or modify the unit.
- Keep away from fire or extreme temperatures.
- Avoid exposure to water or high humidity.
- Do not use if the unit is damaged or modified.
- Ensure proper ventilation during use and charging.
- Keep out of reach of children.
- Dispose of the unit according to local regulations.
3. Product Overview
3.1 Features and Ports
The EnginStar 300W Portable Power Station is equipped with a variety of output ports to meet diverse power needs:
- AC Output: Two 110V Pure Sine Wave AC outlets (300W Max) for household appliances.
- DC Output: Two regulated DC outputs (12V/24V) for DC-powered devices.
- USB Output: Fast charger USB (5V/3.1A Max) and USB-C (18W) for mobile devices.
- 12V Car Outlet: For car-powered accessories.
- Input Ports: Dedicated ports for AC adapter, car charger, and solar panel.

Image 3.1: Front panel of the power station detailing all output and input ports, along with indicators for charging methods.
3.2 Smart LCD Display & LED Lighting
The integrated LCD display provides real-time information about the power station's status:
- Battery Level: Indicates remaining battery capacity.
- Input/Output Wattage: Shows current power draw or input.
- AC/DC/USB Status: Indicates which outputs are active.
The power station also features a multi-mode LED light for various situations:
- Steady Light: For general illumination.
- Strobe Mode: For signaling or attention.
- SOS Mode: For emergency signaling.

Image 3.2: The power station's smart LCD display and the three modes of its integrated LED light.
3.3 Superior Protection System
Equipped with an advanced Battery Management System (BMS), the power station ensures safe and efficient operation:
- Voltage Control
- Temperature Control
- Short Circuit Protection
- Overcharging Protection
- Overload Protection

Image 3.3: Internal view highlighting the advanced lithium-ion battery and its comprehensive protection features.
4. Setup
4.1 Initial Charging
Before first use, fully charge the power station using one of the available methods. This ensures optimal battery performance and longevity.
4.2 Connecting the Solar Panel
- Unfold the 40W solar panel and position it in direct sunlight.
- Connect the solar panel's output cable to the designated input port on the EnginStar Portable Power Station.
- The LCD display on the power station will indicate charging status.

Image 4.1: The 40W foldable solar panel, showing its compact design and included adapter cables for versatile charging.

Image 4.2: A person demonstrating the outdoor setup of the 40W solar panel connected to the EnginStar power station for solar charging.
5. Operating Instructions
5.1 Powering On/Off
Press and hold the main power button for a few seconds to turn the unit on or off. The LCD display will illuminate upon activation.
5.2 Using Output Ports
To activate specific output sections (AC, DC, USB), press the corresponding button next to the port section. The LCD display will show active outputs.
- Connect your device's charging cable to the appropriate port (AC, DC, USB, USB-C).
- Ensure your device's power requirements do not exceed the power station's maximum output for each port.
5.3 LED Light Operation
Press the LED light button to cycle through the different lighting modes: Steady, Strobe, and SOS. Press again to turn off the light.
6. Charging the Power Station
The EnginStar Portable Power Station offers three convenient ways to recharge:
- AC Wall Outlet: Connect the provided AC home charger to the input port on the power station and plug it into a standard wall outlet. Full charge in approximately 7 hours.
- 12V Car Socket: Use the provided car charger cable to connect the power station to your vehicle's 12V cigarette lighter socket.
- Solar Panel: Connect the 40W solar panel (included) to the power station's input port and place the panel in direct sunlight. The built-in controller optimizes the recharge rate.

Image 6.1: The 40W solar panel demonstrating its portability when folded and its extended size when unfolded.
7. Specifications
| Feature | Detail |
|---|---|
| Model Name | EnginStar 300W Portable Power Station |
| Capacity | 296Wh / 80000mAh |
| AC Output | 2 x 110V Pure Sine Wave, 300W Max |
| DC Output | 2 x Regulated 12V/24V |
| USB Output | USB (5V/3.1A Max), USB-C (18W) |
| Car Outlet | 12V |
| Input (Charging) | 12-25V (Solar), AC Wall, 12V Car Socket |
| Full Charge Time | Approx. 7 hours (65W Max) |
| Battery Type | Lithium-ion (1000+ charge cycles) |
| Dimensions | 9"L x 5.5"W x 7.5"H |
| Weight | 6.5 Pounds |
| Included Solar Panel | 40W Foldable Solar Panel |

Image 7.1: Examples of devices and approximate charge capacities for the EnginStar 300W Portable Power Station.
8. Maintenance
- Regular Charging: To maintain optimal battery health, fully charge the power station every 2-3 months, even if not in use.
- Avoid Deep Discharge: Recharge the unit before the battery is completely drained to prolong its lifespan.
- Storage: Store the power station in a cool, dry place away from direct sunlight and extreme temperatures.
- Cleaning: Use a dry, soft cloth to clean the exterior of the unit. Avoid using harsh chemicals or abrasive materials.
9. Troubleshooting
9.1 Unit Not Turning On
- Ensure the battery is charged. Connect to an AC outlet or solar panel to charge.
- Press and hold the power button firmly for a few seconds.
9.2 Devices Not Charging
- Verify that the specific output port (AC, DC, USB) is activated by pressing its corresponding button.
- Check if the device's power consumption exceeds the port's maximum output.
- Ensure the charging cable is securely connected to both the power station and the device.
- If using solar, confirm the solar panel is in direct sunlight and properly connected.
9.3 Overload Protection Activated
If the power station shuts down unexpectedly, it may be due to an overload. Disconnect the device(s) drawing excessive power, wait a few minutes, and then restart the power station.
10. Warranty and Support
The EnginStar 300W Portable Power Station comes with a 12-month limited warranty from the date of purchase. This warranty covers manufacturing defects and workmanship under normal use.
For warranty claims, technical support, or any questions regarding your product, please contact EnginStar customer service through the retailer where the product was purchased or visit the official EnginStar website for contact information.
Please retain your proof of purchase for warranty validation.




