1. Introduction and Overview
The EnginStar 155Wh Portable Power Station R150 is a compact and versatile power solution designed for various applications, including outdoor activities, road trips, and emergency backup. It features a 155Wh (42000mAh) lithium-ion battery, providing multiple output options to charge and power your electronic devices.
This manual provides essential information on how to safely and effectively use, maintain, and troubleshoot your power station.

Image: Front view of the EnginStar R150 Portable Power Station, highlighting its output ports and digital display.
2. Product Features
- High Capacity: 155Wh (42000mAh) lithium-ion battery.
- Multiple Output Ports:
- 1 x AC Output (110V, 150W)
- 2 x DC Outputs (9V-12.6V/10A max, 5.5x2.1mm barrel ports)
- 2 x USB-A Outputs (5V 3.1A max)
- 1 x USB-C Output (5V/3A, 9V/2A)
- Integrated LED Light: Features Steady, Strobe, and SOS modes for various lighting needs.
- Smart LCD Display: Provides real-time information on remaining battery, input, and output wattage.
- Three Recharging Methods: Can be charged via solar panel (not included), wall outlet, or 12V car socket.
- Advanced Safety Protection: Built-in Battery Management System (BMS) protects against overloading, overcharging, over-discharging, overheating, and short circuits.
- Compact and Portable: Weighs 4 lbs with dimensions of 7.5 x 6.5 x 4.5 inches.

Image: The EnginStar R150 in an outdoor setting, demonstrating its capability to power various devices like phones, lights, cameras, and drones.
3. What's in the Box
Upon unpacking, please ensure all the following items are present:
- 1 x EnginStar 155Wh Portable Power Station (Model R150)
- 1 x Car Charger
- 1 x Home Charger (AC Adapter)
- 1 x User Manual
4. Setup and Charging
Before initial use, fully charge the power station. The R150 offers three convenient charging methods:
- Via Wall Outlet (Home Charger): Connect the provided AC adapter to the "INPUT" port on the power station and plug it into a standard 110V wall outlet. Charging time is approximately 5.5 hours.
- Via Car Charger: Connect the provided car charger to the "INPUT" port and plug it into your vehicle's 12V cigarette lighter socket. Charging time is approximately 6.5 hours.
- Via Solar Panel (Not Included): Connect a compatible 12-25V solar panel (ensure correct polarity) to the "INPUT" port. Charging time is approximately 5 hours, depending on sunlight intensity and panel wattage.
The LCD display will show the charging status and input wattage during the charging process.

Image: Visual guide to the three recharging methods for the power station, including estimated durations.
5. Operating Instructions
5.1 Powering On/Off
- To power on the unit, press and hold the main power button (usually located near the LCD screen) for a few seconds until the display illuminates.
- To power off, press and hold the main power button again until the display turns off.
5.2 Using Output Ports
After powering on, activate the desired output section:
- AC Output: Press the "AC" button to enable the 110V AC outlet. Plug in your AC-powered devices (up to 150W). Ensure the device's power consumption does not exceed 150W.
- DC Outputs: The DC outputs are typically active when the unit is on. Plug your 9V-12.6V DC devices into the barrel ports.
- USB-A & USB-C Outputs: These ports are generally active when the unit is on. Connect your USB-powered devices for charging.
The LCD display will show the output wattage for each active section.

Image: Detailed view of the EnginStar R150's multiple output ports and their respective power ratings.
5.3 LED Light Operation
The power station includes an integrated LED light with multiple modes:
- Press the dedicated LED light button once for Steady illumination.
- Press again for Strobe mode.
- Press a third time for SOS signal mode.
- Press a fourth time to turn the LED light off.

Image: The power station's LCD display and a visual representation of its three LED light modes.
6. Maintenance and Storage
Proper maintenance ensures the longevity and optimal performance of your power station:
- Initial Charge: Fully charge the power station before its first use.
- Power Off When Not in Use: Turn off all output functions when the device is not actively powering or charging to conserve battery life.
- Storage Environment: Store the unit in a cool, dry place with temperatures between 40°F and 100°F (4°C and 35°C).
- Long-Term Storage: If not used for an extended period, fully charge the power station after each use and recharge it to 100% every three months to prevent battery degradation.
- Avoid Heat and Direct Sunlight: Keep the power station away from direct heat sources and prolonged exposure to sunlight.
- Cleaning: Use a dry, soft cloth to clean the exterior. Do not use abrasive cleaners or immerse the unit in water.
7. Safety Information
Observe the following safety guidelines to prevent injury or damage to the device:
- Do not disassemble, repair, or modify the unit.
- Keep away from fire, water, and extreme temperatures.
- Do not use or store in environments with high humidity or corrosive substances.
- Avoid dropping or subjecting the unit to strong impacts.
- Ensure proper ventilation during use and charging. Do not cover the unit.
- The built-in Battery Management System (BMS) provides protection against:
- Short Circuit Protection
- Overload Protection
- Over Temperature Protection
- Over Current Protection
- Overcharging and Over-discharging Protection
- Do not attempt to power appliances that exceed the 150W AC output limit. Examples of unsuitable appliances include microwaves, rice cookers, and electric kettles.

Image: Visual warning against using high-power appliances with the power station.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit does not power on. | Battery is depleted. | Charge the power station using the provided AC adapter, car charger, or a compatible solar panel. |
| No output from ports. | Output function not activated; device connected exceeds power limit; cable issue. | Ensure the specific output (e.g., AC) is turned on. Check if the connected device's power consumption is within the unit's limits. Try a different cable or device. |
| Unit charges but immediately shows 0% or turns off when disconnected. | Internal battery fault or calibration issue. | Perform a full charge/discharge cycle. If the issue persists, contact customer support for assistance. |
| LED light not working. | Light function not activated; unit is off. | Ensure the unit is powered on and press the LED light button to cycle through modes. |
9. Specifications
| Model | R150 |
| Battery Type | Lithium Ion |
| Battery Capacity | 155Wh / 42000mAh |
| AC Output | 110V, 150W, 50Hz |
| DC Output | 2 x 9V-12.6V/10A max (5.5x2.1mm barrel ports) |
| USB-A Output | 2 x 5V 3.1A max |
| USB-C Output | 1 x 5V/3A, 9V/2A |
| Input (Charging) | 12-25V (via AC adapter, car charger, or solar panel) |
| Product Dimensions | 7.5 x 6.5 x 4.5 inches |
| Item Weight | 4 pounds |
| Special Features | Digital Display, Flashlight, Lightweight, Over Charging Protection, Short Circuit Protection |

Image: Dimensions and weight of the EnginStar R150 Portable Power Station.
10. Warranty and Support
The EnginStar 155Wh Portable Power Station R150 comes with a 12-month limited warranty from the date of purchase.
For technical support, warranty claims, or any product-related inquiries, please contact EnginStar customer service. They offer 7x24 hour customer service.
Please refer to the contact information provided on the EnginStar official website or your purchase documentation for the most up-to-date support channels.




