Introduction
This manual provides essential information for the safe and efficient use of your OKRAY 18W Quick Charge 3.0 USB Wall Charger. Please read these instructions carefully before use and retain them for future reference.
The OKRAY 18W QC 3.0 USB Wall Charger is designed for fast charging a wide range of USB-powered devices. It features Quick Charge 3.0 technology, delivering up to 18W output for rapid power delivery. The compact and portable design makes it suitable for both home and travel use. Built-in intelligent chip and circuit systems provide comprehensive protection against over-charging, over-current, over-heating, and short circuits, ensuring device safety.
Package Contents
- 5 x OKRAY 18W Fast Wall Chargers
Note: Charging cables are not included and must be purchased separately.
Safety Precautions
- Do not expose the charger to liquids, moisture, or extreme temperatures.
- Avoid dropping or subjecting the charger to strong impacts.
- Do not attempt to disassemble, repair, or modify the charger.
- Ensure the wall outlet voltage is compatible with the charger's input voltage (100-240V).
- Unplug the charger from the wall outlet when not in use or during electrical storms.
- Keep out of reach of children.
Setup
- Unpack the Charger: Carefully remove the OKRAY 18W USB Wall Charger from its packaging.

Image: The OKRAY 18W USB Wall Charger, a compact black cube with a single USB-A port.
- Connect a USB Cable: Insert the USB-A end of your charging cable into the USB-A port on the charger.

Image: The OKRAY 18W USB Wall Charger plugged into a wall outlet, with a white USB cable connected to a smartphone.
- Plug into a Wall Outlet: Insert the charger into a standard North American Type A 2-pin wall outlet (100-240V).
- Connect to Device: Connect the other end of the USB cable to your compatible device (e.g., smartphone, tablet, smartwatch).
Operating Instructions
The OKRAY 18W QC 3.0 USB Wall Charger automatically detects the connected device and delivers the optimal charging current. For best performance, use a high-quality charging cable compatible with your device.
Fast Charging Capability
This charger supports Quick Charge 3.0 technology, providing rapid charging for compatible devices. For example, it can charge an iPhone 16/15/14/13/12 series from 0% to 50% in approximately 35 minutes, and a Samsung Galaxy S25/S24/S23 from 15% to 100% in about an hour. Actual charging times may vary based on device, battery condition, and environmental factors.

Image: An OKRAY 18W USB Wall Charger connected to an iPhone, illustrating the fast charging capability with a graphic showing 50% charge in 35 minutes.
Wide Compatibility
The charger is compatible with a broad range of USB-charged devices. Use a USB-A to USB-C cable for devices like iPhone 15/16 series, iPad 10/Pro/Air 5/4/Mini 6, Samsung Galaxy S/Note/Z Flip/Z Fold series, Galaxy Tab S/A, LG ThinQ, and Moto G series. Use a USB-A to Lightning cable for iPhone 14/13/12/11/XS/XR/X/8/7, older iPads, and AirPods.

Image: A visual representation of the charger's universal compatibility with various smartphones, tablets, and other devices, categorized by cable type (USB-A to Lightning and USB-A to USB-C).
Wireless Charger Compatibility
This adapter is suitable for powering 10W Qi wireless chargers. Connect the USB-A end of your wireless charger's cable to the OKRAY wall plug, then place your compatible device on the wireless charging pad.

Image: The OKRAY 18W USB Wall Charger plugged into a power strip, connected via cable to a wireless charging pad with a smartphone on it.
Maintenance
- To clean the charger, unplug it from the power outlet and wipe it with a dry, soft cloth.
- Do not use liquid cleaners or aerosols.
- Store the charger in a cool, dry place when not in use.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device not charging. |
|
|
| Slow charging. |
|
|
| Charger gets warm during use. | Normal operation. | A slight increase in temperature is normal during charging. If it becomes excessively hot, discontinue use and contact support. The charger has built-in over-temperature protection. |
| Charger stopped working after overseas use. | Voltage incompatibility or power surge. | While the charger supports 100-240V input, some international outlets or power conditions may cause issues. Always use appropriate travel adapters and surge protectors when traveling internationally. |

Image: An exploded view of the OKRAY 18W USB Wall Charger, highlighting its internal intelligent chip and multi-protection features like over-voltage, over-current, over-temperature, and short-circuit protection.
Specifications
| Model Number | HNT-QC530 |
| Brand | OKRAY |
| Input Voltage | 100-240 Volts |
| Output Wattage | 18 Watts (Max) |
| Output Current | 3 Amps (Max) |
| Output Voltage | 5 Volts |
| Connector Type | USB Type A |
| Total USB Ports | 1 |
| Power Plug Type | Type A - 2 pin (North American) |
| Material | Polycarbonate |
| Weight | 40 Grams |
| Special Features | Automatic Off, Fast Charging, Lightweight Design, Short Circuit Protection, Travel-friendly |

Image: The compact OKRAY 18W USB Wall Charger placed on a suitcase next to a tablet and earbuds, illustrating its travel-friendly design.
Warranty
The OKRAY 18W QC 3.0 USB Wall Charger comes with an 18-month warranty from the date of purchase. This warranty covers manufacturing defects and issues arising from normal use. It does not cover damage caused by misuse, accidents, unauthorized modifications, or improper installation.
Please retain your proof of purchase for warranty claims.
Customer Support
For any questions, concerns, or technical assistance regarding your OKRAY 18W USB Wall Charger, please contact our customer service team.
You can reach us via Amazon's messaging system. We are committed to providing a safe and fast charging experience and value your feedback.
OKRAY strives to provide a safe and fast charging experience for our valuable customers with constantly improved products. All products are manufactured and tested strictly before delivery.