1. Introduction
Thank you for choosing the Krisdonia 27000mAh 130W Portable AC Outlet Power Bank. This device is designed to provide reliable and versatile power for a wide range of electronic devices, including laptops, CPAP machines, projectors, and mobile phones. Its high capacity and multiple output options make it an essential companion for travel, outdoor activities, and emergency backup.
2. Safety Information
Please read all safety instructions carefully before using this product. Failure to follow these instructions may result in electric shock, fire, or other hazards.
- Do not expose the power bank to extreme temperatures (above 60°C/140°F or below 0°C/32°F).
- Do not disassemble, modify, or attempt to repair the device.
- Keep away from water, moisture, and flammable materials.
- Avoid dropping or subjecting the device to strong impacts.
- Use only the provided or certified charging cables and adapters.
- Keep out of reach of children.
- Dispose of the power bank responsibly according to local regulations.
3. Package Contents
Verify that all items are present in your package:
- Krisdonia 27000mAh 130W Portable AC Outlet Power Bank
- 19V/2A DC Charger
- USB-A Fast Charging Cable
- Carrying Case (as mentioned in reviews)
- User Manual
4. Product Overview
Familiarize yourself with the components and features of your Krisdonia Power Bank.

Figure 4.1: Front view of the Krisdonia Power Bank, highlighting the DC-IN, Type-C, USB-A ports, AC-OUT, and digital display.
- Digital Display: Shows remaining battery percentage and active output modes (e.g., AC).
- DC-IN Port: For recharging the power bank using the provided 19V/2A DC charger.
- Type-C Port: (Assumed from image, though not explicitly in feature bullets, but common for modern power banks) For input/output with compatible USB-C devices.
- USB-A Ports (x2): Both are QC 3.0 compatible, providing up to 18W fast charging for mobile devices.
- AC-OUT Port: Standard AC outlet supporting up to 130W for laptops, CPAP, projectors, etc.
- Power Button: Press to check battery level, long press to activate/deactivate AC output.

Figure 4.2: Physical dimensions of the Krisdonia Power Bank, measuring approximately 6.5 x 5.91 x 1.57 inches.
5. Setup
5.1 Charging the Power Bank
Before first use, fully charge your Krisdonia Power Bank. It is recommended to fully charge the device every 3 months if not in regular use to maintain battery health.
- Connect the provided 19V/2A DC charger to the DC-IN port on the power bank.
- Plug the charger into a wall outlet.
- The digital display will show the charging progress. A full charge takes approximately 4.5 hours.
6. Operating Instructions
6.1 Checking Battery Level
Press the power button once to view the current battery percentage on the digital display.
6.2 Using USB-A Ports
The two USB-A ports are designed for fast charging mobile devices.
- Connect your device to either USB-A port using a compatible USB cable.
- The power bank will automatically begin charging your device.
6.3 Using the AC Outlet
The AC outlet provides up to 130W of power for larger electronics.
- Long press the power button for 2 seconds to activate the AC output. The display will show "AC" and the percentage.
- Plug your device's power adapter into the AC-OUT port.
- To turn off the AC output, long press the power button again for 2 seconds.

Figure 6.1: The Krisdonia Power Bank simultaneously charging a laptop via AC output and a smartphone via USB, while also being recharged itself (Pass-Through Charging).
6.4 Pass-Through Charging
The power bank supports pass-through charging, allowing it to charge itself while simultaneously powering other devices.
- Connect the power bank to its DC charger.
- Connect your devices to the power bank's output ports (USB-A, Type-C, or AC-OUT).
- The function is activated by pressing the power button for 2 seconds while the power bank is recharging itself.
7. Maintenance
- Clean the power bank with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Store in a cool, dry place away from direct sunlight and extreme temperatures.
- Avoid fully discharging the battery for extended periods. Recharge periodically to maintain optimal battery life.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Power bank not charging. | Charger not properly connected; faulty charger/cable; power bank fully discharged. | Ensure connections are secure. Try a different outlet. If completely discharged, it may take a few minutes for the display to light up. |
| Device not charging from USB ports. | Cable issue; device not compatible; power bank low on charge. | Try a different USB cable. Ensure the power bank has sufficient charge. |
| AC output not working. | AC output not activated; device draws too much power; power bank low on charge. | Long press the power button for 2 seconds to activate AC output. Check if your device's power consumption exceeds 130W. Recharge the power bank. |
| Power bank automatically shuts off. | Overload protection; low battery. | Reduce the load on the AC outlet. Recharge the power bank. |
9. Specifications
| Feature | Detail |
|---|---|
| Model Number | NJF-3X |
| Battery Capacity | 27000mAh (99.9Wh) |
| AC Output | 130W Max |
| USB-A Output | QC 3.0, 18W Max per port |
| DC Input | 19V/2A (Approx. 4.5 hours for full charge) |
| Product Dimensions | 6.5 x 5.91 x 1.57 inches |
| Item Weight | 2.56 pounds |
| Battery Type | Lithium-ion Polymer |
| Special Features | Fast Charging, Portable, Travel (TSA-Approved) |
10. Warranty and Support
Krisdonia provides a 12-month 100% satisfaction warranty for this product. If you encounter any issues or have questions, please contact Krisdonia customer service for assistance. Refer to the contact information provided in your product packaging or on the official Krisdonia website.
For further support, visit the Krisdonia Store on Amazon.
