1. Introduction
The VTOMAN FlashSpeed 300 is a lightweight and powerful portable power station designed to provide reliable electricity for various applications, including outdoor camping, RV use, off-grid living, and home backup. Equipped with a durable LiFePO4 battery, it offers multiple output ports and versatile charging options to keep your devices powered.

Image: VTOMAN FlashSpeed 300 Portable Power Station, showcasing its compact design and display panel.
2. Safety Instructions
Please read all safety instructions carefully before operating the device. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Do not disassemble, repair, or modify the unit.
- Do not expose the unit to fire or high temperatures.
- Do not use or store the unit in direct sunlight or in hot environments.
- Keep the unit away from water, moisture, and corrosive substances.
- Ensure proper ventilation during use to prevent overheating.
- Keep out of reach of children and pets.
- Use only VTOMAN-approved accessories and chargers.
- Avoid dropping or subjecting the unit to strong impacts.
- In case of fire, use a dry powder fire extinguisher. Do not use water.
3. Product Overview
3.1 Dimensions and Portability
The FlashSpeed 300 is designed for portability, weighing approximately 7.4 lbs (3.35 kg). Its compact dimensions make it easy to carry and store.

Image: A person holding the VTOMAN FlashSpeed 300, illustrating its compact size and lightweight design (7.4 lbs), with approximate dimensions of 9.4 inches height, 5 inches depth, and 10.4 inches width.
3.2 Ports and Controls
The power station features a versatile multi-output design to accommodate various devices.

Image: Close-up view of the VTOMAN FlashSpeed 300's side panel, detailing its output ports and controls. These include 3 USB-A outputs (18W Max), an ON/OFF button for DC output and display, 2 AC outlets (2*300W), a DC output (12V=10A, 120W Max), a Type-C In/Out port (100W Max), and a DC Input (12-30V, 90W Max).
- Display Screen: Shows battery level, input/output wattage, and status indicators.
- AC Output Ports: Two 300W AC outlets for household appliances.
- USB-A Ports: Three USB-A ports, up to 18W max, for charging smaller devices.
- USB-C PD 100W Port: Bi-directional port for fast charging input and output.
- DC Output Port: 12V/10A (120W Max) for DC-powered devices.
- DC Input Port: For charging via solar panel or car charger.
- Power Button: To turn the unit on/off and activate specific outputs.
- Emergency Light: Integrated LED light with multiple modes.
4. Setup
4.1 Unboxing and Included Components
Upon receiving your VTOMAN FlashSpeed 300, carefully unpack all components and verify the contents against the list below:

Image: Contents of the VTOMAN FlashSpeed 300 package, including the power station, AC adapter & charging cable, car charging cable, USB-A to USB-C cable, USB-C to USB-C cable, and user manual.
- 1x FlashSpeed 300 Portable Power Station
- 1x AC Adapter & Charging Cable
- 1x Car Charging Cable
- 1x USB-A to USB-C Cable
- 1x USB-C to USB-C Cable
- 1x User Manual
4.2 Initial Charge
It is recommended to fully charge the power station before first use. Connect the AC adapter to a wall outlet and then to the DC input port on the FlashSpeed 300. The display will indicate charging status. A full charge typically takes 2.4-2.6 hours via AC adapter.
5. Operating Instructions
5.1 Turning On/Off
To turn on the unit, press and hold the main power button for a few seconds. The display screen will illuminate. To turn off, press and hold the power button again.
5.2 Charging the Power Station
The FlashSpeed 300 offers multiple charging methods:

Image: Visual representation of the four charging methods for the VTOMAN FlashSpeed 300: AC Adapter, Car Outlet, Solar Panel, and Type-C Port.
- AC Wall Outlet: Connect the included AC adapter to a wall outlet and the DC input port. (Approx. 2.4-2.6 hours)
- Solar Panel: Connect a compatible solar panel (12-30V, 90W Max) to the DC input port. The built-in MPPT controller optimizes solar charging. (Approx. 3-6 hours with 100W solar panel)
- Car Charger: Use the included car charging cable to connect to your vehicle's 12V/24V cigarette lighter socket and the DC input port. (Approx. 2.4-2.6 hours)
- USB-C PD 100W: Use a USB-C PD charger (not included) to charge via the bi-directional USB-C port. (Approx. 2.4-2.6 hours)

Image: The VTOMAN FlashSpeed 300 connected via its PD100W Type-C port to a laptop and smartphone on an outdoor table, demonstrating fast charging capabilities for various devices.
5.3 Using the Outputs
After turning on the unit, press the respective buttons to activate the desired output ports (AC, DC, USB). The display will show the active outputs and current wattage.
- AC Outlets: Plug in devices requiring up to 300W continuous power.
- USB Ports: Connect smartphones, tablets, drones, and other USB-powered devices.
- DC Output: Use for 12V DC appliances.
5.4 Emergency Light
The FlashSpeed 300 includes a 3-mode LED emergency light for various situations.

Image: The VTOMAN FlashSpeed 300 providing illumination with its emergency light in an outdoor camping setting, highlighting its constant lighting, strobe, and SOS modes.
- Constant Lighting Mode: Provides steady illumination.
- Strobe Mode: Flashing light for signaling.
- SOS Mode: International Morse code signal for emergencies.
Press the light button to cycle through the modes.
6. Maintenance
6.1 Battery Care (LiFePO4)
The FlashSpeed 300 utilizes a LiFePO4 battery, known for its longevity and safety.

Image: A comparison chart highlighting the advantages of VTOMAN's LiFePO4 battery over standard Lithium batteries, including longer life (7-10 years vs 3-5 years), more cycle charging times (3,000+ cycles to 80% vs 500-1000 cycles to 80%), SuperSafe LIFEBMS with up to 10 protections, faster charging ports (PD100W Type-C), and more recharging options.
- LiFePO4 batteries offer 3000+ cycles to 80% capacity, providing a longer lifespan (7-10 years).
- Integrated LIFEBMS (Battery Management System) provides 10 protections for enhanced safety.
- For optimal battery health, avoid completely draining the battery frequently.
6.2 Cleaning and Storage
- Clean the unit with a dry, soft cloth. Do not use abrasive cleaners or solvents.
- Store the power station in a cool, dry place, away from direct sunlight and extreme temperatures.
- For long-term storage, charge the unit to approximately 50-80% every 3-6 months to maintain battery health.
7. Troubleshooting
If you encounter issues with your FlashSpeed 300, refer to the following common problems and solutions:
- Unit Not Turning On: Ensure the battery is charged. If completely drained, connect to an AC outlet for a few minutes before attempting to power on.
- No Output from Ports: Verify that the specific output (AC, DC, USB) is activated by pressing its respective button. Check if the device connected is within the power station's wattage limits.
- Charging Slowly: Ensure the charging source (AC adapter, solar panel, car charger, USB-C PD) is functioning correctly and meets the required specifications. Check cables for damage.
- Overload Protection: If the unit shuts down, it may be due to an overload. Disconnect the high-power device, wait a few minutes, and restart the power station.
- Display Not Working: Try restarting the unit. If the issue persists, contact customer support.
8. Specifications
| Feature | Specification |
|---|---|
| Model Name | FlashSpeed 300 (PB-82) |
| Battery Type | LiFePO4 |
| Capacity | 230Wh (70000mAh) |
| Rated Power | 300W |
| Peak Power | 600W |
| AC Output | 2x 110V/60Hz (Pure Sine Wave) |
| DC Output | 1x 12V/10A (120W Max) |
| USB-A Output | 3x 5V/3A (18W Max) |
| USB-C Input/Output | 1x PD 100W Max |
| DC Input | 12-30V, 90W Max |
| Charging Time (AC) | Approx. 2.4-2.6 hours |
| Charging Time (Solar) | Approx. 3-6 hours (with 100W solar panel) |
| Dimensions | 12"L x 13.6"W x 7.1"H (Product dimensions from specs are inconsistent, using image dimensions for clarity: approx. 10.4"L x 5"W x 9.4"H) |
| Weight | 7.4 lbs (3.35 kg) |
| Operating Temperature | 0°C to 40°C (32°F to 104°F) |
9. Warranty and Support
9.1 Warranty Information
The VTOMAN FlashSpeed 300 Portable Power Station comes with a manufacturer's warranty. Please refer to the warranty card included in your package or visit the official VTOMAN website for detailed terms and conditions.
9.2 Customer Support
For technical assistance, troubleshooting, or any inquiries regarding your product, please contact VTOMAN customer support. You can find contact details on the official VTOMAN website or through their Amazon store page:
10. Video Resources
No official product videos from the seller were available in the provided data to embed in this manual.





