YILANS 26800 mAh Portable Power Bank JM3 User Manual

1. Introduction

Thank you for choosing the YILANS 26800 mAh Portable Power Bank. This device is designed to provide reliable and efficient portable charging for your electronic devices. Featuring 22.5W fast charging with USB-C PD3.0 and QC4.0 compatibility, it ensures your smartphones, tablets, and other gadgets stay powered on the go. Please read this manual carefully before use to ensure optimal performance and safety.

2. Safety Instructions

To prevent damage to the device or injury to yourself and others, please observe the following safety precautions:

• Do not expose the power bank to extreme temperatures, direct sunlight, or fire.
• Do not immerse the power bank in water or other liquids.
• Avoid dropping, hitting, or disassembling the device.
• Keep out of reach of children.
• Use only certified chargers and cables for charging the power bank and your devices.
• If the power bank swells, emits an odor, or becomes hot during charging or use, discontinue use immediately.
• Dispose of the power bank according to local regulations.

Figure 2.1: The power bank features multiple protection mechanisms, including protection against excessive voltage, low voltage, overcurrent, short circuits, and NTC temperature control, ensuring safe operation.

3. Package Contents

Please check the package for the following items:

• 1 x YILANS 26800 mAh Portable Power Bank
• 1 x USB-A to USB-C Charging Cable
• 1 x User Manual

4. Product Overview

The YILANS JM3 Power Bank features a sleek design with a digital display and multiple ports for versatile charging.

Figure 4.1: The power bank offers powerful compatibility, meeting the fast charging requirements of mainstream devices with PD and QC3+ support.

Figure 4.2: The intelligent digital display shows the battery percentage. It blinks when the battery level is below 5% and turns off 15 seconds after a full charge.

5. Setup

5.1 Initial Charging of the Power Bank

Before first use, fully charge the power bank. Connect the provided USB-A to USB-C cable to the power bank's input port and connect the other end to a compatible USB wall charger (not included). For the fastest charging, use a charger of 18W or higher and a fast-charging compatible cable. The power bank can be fully charged in approximately 4 hours under optimal conditions (YILANS lab test data).

Figure 5.1: Charging the power bank. The large capacity of 26800mAh ensures extended power for your devices.

6. Operating

6.1 Charging External Devices

To charge your device, connect it to one of the power bank's output ports using an appropriate charging cable. The power bank will automatically begin charging. It supports simultaneous charging of up to three devices.

Figure 6.1: The power bank supports multi-device usage, allowing simultaneous charging of up to three devices. Its compact and portable design makes it easy to carry in a backpack or bag.

6.2 Checking Battery Level

Press the power button once to activate the digital display, which will show the current battery percentage. The display will turn off automatically after a few seconds to conserve power.

7. Maintenance

Proper maintenance ensures the longevity of your power bank:

• Clean the power bank with a dry, soft cloth. Do not use abrasive cleaners or solvents.
• Store the power bank in a cool, dry place away from direct sunlight and extreme temperatures.
• If not used for extended periods, charge the power bank at least once every three months to maintain battery health.

8. Troubleshooting

If you encounter issues with your power bank, refer to the following common solutions:

• Power bank not charging: Ensure the charging cable and wall adapter are working correctly and are securely connected. Try a different cable or adapter.
• Device not charging from power bank: Check if the power bank has sufficient charge. Ensure the cable connecting your device to the power bank is functional and properly connected.
• Slow charging: Verify that both the power bank and your device support fast charging protocols (PD3.0, QC4.0) and that you are using a compatible fast-charging cable.
• Digital display not working: Press the power button to activate the display. If it remains off, the power bank might be completely discharged or require service.

9. Specifications

10. Warranty and Support

The YILANS 26800 mAh Portable Power Bank comes with a 12-month warranty from the date of purchase. For any product-related inquiries, technical support, or warranty claims, please contact our customer service team. We offer 24/7 customer support to assist you.

Please retain your proof of purchase for warranty validation.