INIU P51
INIU 22.5W 20000mAh Portable Power Bank P51 Instruction Manual
Model: P51
1. Introduction
Thank you for choosing the INIU 22.5W 20000mAh Portable Power Bank, Model P51. This device is designed to provide reliable and efficient power for your electronic devices on the go. It features a compact design, high capacity, and multiple charging ports to keep your devices powered. Please read this manual carefully before use to ensure proper operation and to maximize the lifespan of your power bank.
Image: The INIU P51 Power Bank, demonstrating its pocket-sized form factor and 20000mAh capacity. It is approved for carry-on luggage on flights.
2. Product Overview
2.1 Package Contents
- INIU 20000mAh Portable Power Bank (Model P51)
- Strap-attached USB-C Cable
- Instruction Manual
- 3-Year Quality Warranty (INIU Care)
- Lifetime Technical Support
2.2 Key Features
- High Capacity: 20000mAh battery, capable of charging an iPhone 16 up to 4 times or a Galaxy S23 up to 3 times.
- Fast Charging: Supports 22.5W fast charging (PD/QC compatible), charging an iPhone 16 to approximately 63% in 25 minutes, and a Samsung S24 Ultra to approximately 73% in 25 minutes.
- Multi-Device Charging: Equipped with 2x USB-C ports (input/output) and 1x USB-A port, allowing simultaneous charging of up to 3 devices.
- Integrated Strap USB-C Cable: Features a durable, high-strength nylon braided USB-C cable that doubles as a strap, preventing loss and ensuring convenience.
- Low Current Charging Mode: Automatically detects and provides 50mA low-current charging for small devices like earphones and smartwatches.
- Digital LED Display: Shows the remaining battery percentage for precise power management.
- Emergency LED Light: Built-in flashlight for convenience in low-light conditions.
- Safety Features: Adheres to strict safety standards, including PSE certification, and incorporates multiple protection mechanisms.
Image: The INIU P51 Power Bank and its included accessories: the power bank unit, a strap-attached USB-C cable, and the instruction manual. The image also highlights the PSE certification.
3. Setup
3.1 Initial Charge
- Upon receiving your INIU P51 Power Bank, it is recommended to fully charge it before first use.
- Connect the power bank to a wall charger (not included) using the included USB-C cable or another compatible USB-C cable.
- The digital LED display will show the charging progress, indicating 100% when fully charged.
4. Operating Instructions
4.1 Charging the Power Bank
To recharge your INIU P51 Power Bank:
- Connect a USB-C charging cable to one of the power bank's USB-C input/output ports.
- Plug the other end of the cable into a compatible USB wall charger (e.g., 20W PD charger for optimal speed).
- The LED display will show the current charge level. It takes approximately 5 hours to fully charge the power bank with a 20W charger.
Image: The INIU P51 Power Bank connected to a wall charger for recharging, while also providing power to a smartphone. This illustrates the pass-through charging capability.
4.2 Charging External Devices
To charge your smartphone, tablet, or other compatible devices:
- Connect your device to one of the power bank's output ports (USB-A or USB-C) using a compatible charging cable.
- The power bank will automatically begin charging your device. The LED display will show the remaining battery percentage.
- To stop charging, simply disconnect your device.
Image: A smartphone being fast-charged by the INIU P51 Power Bank using the USB-C port. The power bank's digital display shows 100% battery, and the charging speed is indicated as 22.5W.
4.3 Simultaneous Charging
The INIU P51 Power Bank can charge up to three devices simultaneously using its two USB-C ports and one USB-A port. Connect each device to an available port, and the power bank will distribute power accordingly.
Image: The INIU P51 Power Bank connected to and charging multiple devices, including a smartphone, headphones, and an action camera, highlighting its versatile multi-device charging system.
4.4 Low Current Charging Mode
For low-power devices such as Bluetooth earphones, smartwatches, or fitness trackers, the power bank automatically detects and provides a precise 50mA low-current charge. This prevents overcharging and protects the battery of small devices.
4.5 Digital LED Display
The integrated LED display shows the remaining battery percentage of the power bank, allowing you to monitor its power level accurately.
4.6 Emergency LED Light
The power bank includes a built-in LED flashlight for emergency situations or when extra light is needed. To activate or deactivate the flashlight, press and hold the power button for approximately 3 seconds.
Image: The INIU P51 Power Bank being used as an emergency flashlight, casting light towards a tent in a dark environment, demonstrating its utility for outdoor or emergency situations.
5. Maintenance
5.1 Care and Storage
- Keep the power bank away from extreme temperatures (hot or cold), direct sunlight, and liquids.
- Avoid dropping or subjecting the power bank to strong impacts.
- Clean the power bank with a dry, soft cloth. Do not use corrosive cleaners or sprays.
- If storing for an extended period, charge the power bank to approximately 50-70% every 3 months to maintain battery health.
6. Troubleshooting
If you encounter issues with your INIU P51 Power Bank, refer to the table below for common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Power bank not charging | Loose cable connection, faulty charger, damaged cable. | Ensure cables are securely connected. Try a different cable or wall charger. |
| Device not charging from power bank | Power bank battery depleted, incompatible cable, device not properly connected. | Recharge the power bank. Use a different charging cable. Ensure the device is correctly plugged into an output port. |
| Slow charging | Non-fast charging cable/adapter, multiple devices charging simultaneously. | Use a fast-charging compatible cable and wall adapter. Disconnect other devices to prioritize charging speed for one device. |
| LED display not working | Power bank is off, internal malfunction. | Press the power button briefly to activate the display. If the issue persists, contact customer support. |
| Emergency LED light not turning on | Incorrect operation, power bank battery depleted. | Press and hold the power button for 3 seconds. Recharge the power bank if the battery is low. |
7. Specifications
| Feature | Detail |
|---|---|
| Brand | INIU |
| Model Number | P51 |
| Battery Capacity | 20000 mAh |
| Battery Cell Type | Lithium Polymer |
| Connector Type | USB Type A, USB Type C |
| Number of Ports | 3 (2x USB-C, 1x USB-A) |
| Voltage | 5 Volts |
| Max Output Power | 22.5W |
| Item Dimensions (L x W x T) | 10.4 x 7 x 2.9 cm |
| Item Weight | 313.5 grams |
| Color | Black |
| Compatible Devices | Smartphones (iPhone 17/16/15/14/13/12/11/SE/X/XS/XR/8, Samsung Galaxy S series, Google Pixel series), Tablets (iPad Pro/Air), Smartwatches (Apple Watch Series 9/8), Earphones (AirPods), GPS devices, Camp lights. |
| Recommended Use | Outdoor, Disaster Preparedness, Emergency Use |
| Certifications | PSE Certified |
8. Warranty and Support
8.1 Warranty Information
The INIU P51 Portable Power Bank comes with an industry-leading 3-year quality warranty (INIU Care). This warranty covers manufacturing defects and ensures product reliability. Please retain your proof of purchase for warranty claims.
8.2 Customer Support
For any questions, technical assistance, or warranty claims, please contact INIU customer support. Lifetime technical support is provided for this product.
Contact information can typically be found on the INIU official website or through the retailer where the product was purchased.
9. Important Safety Precautions
To prevent injury, damage to the product, or damage to property, please observe the following safety precautions:
- Do not disassemble, open, or shred the power bank.
- Do not expose the power bank to heat or fire. Avoid storage in direct sunlight.
- Do not short-circuit the power bank. Do not store it in a box or drawer where it may be short-circuited by other metal objects.
- Do not expose the power bank to mechanical shock.
- In the event of a leak, do not allow the liquid to come into contact with skin or eyes. If contact has occurred, wash the affected area with copious amounts of water and seek medical advice.
- Do not use any charger other than that specifically provided for use with the equipment.
- Keep the power bank out of reach of children.
- Supervise children to ensure that they do not play with the appliance.
- The power bank may become warm during charging. This is normal and does not indicate a malfunction.
- Dispose of the power bank according to local regulations. Do not dispose of it as household waste.
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