Xiaomi Mi Portable Air Inflator MJCQB01QJ User Manual

Safety Instructions

Before using the product, please read this manual carefully and keep it in a safe place for future use. The machine generates 75dB or more noise when working; ensure you have sufficient ear protection. When working continuously for a long time, the body and air hose may generate high temperatures; allow it to cool down before further use. This product is not a toy; children are not allowed to use it.

Product Introduction

This product is an American-style portable air inflator designed for various inflation needs.

Components:

1. American-style nozzle
2. High-pressure air hose
3. Air hose storage compartment
4. Illuminating light
5. Air hose connector
6. Display screen
7. [plus-button] button
8. Illuminating light on/off button
9. [minus-button] button
10. Power indicator
11. Charging port
12. Mode button
13. Start/stop button
14. Heat sink

Note: The illustrations of products, accessories, and user menu are for reference only. Due to product updates and upgrades, the actual product and schematics may differ slightly.

Accessory List

The package includes the following accessories:

• French-style air nozzle conversion head x 1
• Air needle x 1
• Charging cable x 1
• Storage bag x 1

Usage Guide

I. Power Display and Charging

Power Display

The power indicator light remains on and shows different colors to indicate the remaining power:

• White light on permanently: Battery power ≥ 50%
• Orange light on permanently: 20% ≤ power < 50%
• Red light on permanently: Battery power <20% (needs charging)

Charging

Before first use, please fully charge the inflator. Use the provided charging cable to connect to a 5V USB charger (sold separately). Charging status indicators:

• White light flashing: Charging
• White light permanently on: Fully charged

Note: The inflator cannot be used during charging.

II. Power On

Pull out the high-pressure air hose to turn on the inflator automatically. The inflator will automatically shut down after 3 minutes if not used. If the air hose is pulled out and the device has shut down, press and hold the "Start/Stop" button to turn it on again.

III. Connect the High-Pressure Air Hose to the Air Valve

American-style Nozzle

Used for vehicles with "American-style valves," such as mountain bikes, electric bikes, motorcycles, and cars. To inflate, connect the "American-style nozzle" directly. To deflate, press the air needle inside the valve with a suitable tool.

French Nozzle Adapter

Used for vehicles with "French valves," such as road bikes and some mountain bikes. To inflate, unscrew the French valve screw on the tire and connect the "French valve adapter." After inflating, retighten the tire valve screw. To deflate, unscrew the French valve and press the screw.

Air Needle

Used for inflating balls like basketballs and soccer balls. To inflate, connect the "air needle" to the "American-style air nozzle," tighten, and insert the needle into the ball's air hole. To deflate, insert the "air needle" directly into the ball's air hole.

IV. Testing Air Pressure

When the machine is turned on and the air hose is connected, the display shows the current pressure.

V. Check Inflation Pressure

For safety, check the required inflation pressure of the item before inflating to avoid personal injury from over-inflation. Tire pressure is typically marked on the tire sidewall or inside the driver's door. Ball pressure is usually marked around the air nozzle.

Recommended Inflation Pressure Table for Common Products

Note: The recommended pressure range is for reference only; please refer to the requirements of the product being inflated.

VI. Preset Tire Pressure

Mode Switching

Short press the "mode button" to switch between five inflation scenarios. Press and hold the "mode button" to switch between psi/bar units.

• No mode light on: Preset pressure is freely adjustable (value and unit can be memorized). Adjustable range: 3-150psi.
• Bicycle mode light on: Default 45psi. Adjustable range: 30-65psi.
• Motorcycle mode light on: Default 2.4bar. Adjustable range: 1.8-3.0bar.
• Car mode light on: Default 2.5bar. Adjustable range: 1.8-3.5bar.
• Ball mode light on: Default 8psi. Adjustable range: 4-1.6psi.

Preset Value Fine-Tuning

After selecting the scenario mode, short press "+" or "-" to adjust the preset pressure value. Long press "+" or "-" to quickly adjust the pressure value. When adjusting, the number flashes to indicate the target pressure adjustment status, and the number lights up to indicate the real-time pressure.

Illuminating Light

Press the "light switch" to turn the light on or off. Turning on the light helps with operations such as connecting the air nozzle in a dark environment.

VII. Inflation

Start Inflation

Short press the "Start/Stop button" to start inflation. The digital display shows the real-time pressure changing during inflation. The inflation process generates 75-80 decibels of noise; please protect your ears. Avoid touching the high-pressure hose with your hands for too long.

Stop Inflation

When the air pressure reaches the preset pressure value, the inflator stops inflating automatically. You can also stop the inflating process by short pressing the "Start/Stop button".

Reminder

The inflation pressure for items like balloons, toy balls, and swimming rings is below the inflator's measurable range and cannot be stopped automatically by preset pressure. Use with caution on these items.

Battery Life Span

The continuous operating time without load is about 30 minutes at 25°C ambient temperature when fully charged. Larger pressure loads and lower ambient temperatures will result in a shorter battery life.

VIII. Unscrew the Air Nozzle

The air hose becomes hot during inflation, so be careful when removing the nozzle. There will be a slight air leakage when undoing it; undo it quickly to reduce the amount of air coming out.

IX. Power Off

Plug the high-pressure air hose back into the storage compartment to turn off the machine, or press and hold the "Start/Stop" button to turn it off when it is on. When the power is on, it will automatically shut down after 3 minutes without any operation.

Caution

• This product is not a toy and its use by children is prohibited. It is recommended that the user is 16 years of age or older. During the inflating process, keep children and inflatables at a safe distance from the device.
• The product has a built-in, non-removable, lithium battery. Do not throw the product into a fire or discard it except at a proper recycling area. Lithium batteries can overheat, and with an impact or exposure to water, there is a risk of fire, spontaneous combustion, or explosion. Please avoid exposure to high temperature environments such as in a car.
• Do not store the product at temperatures below -10°C or above 45°C. Too cold or too hot will shorten the life of the product and damage the built-in battery.
• If the product is idle for a long time, it may damage the battery; it is recommended to charge it at least once every three months.
• The product has a built-in DC motor, which may produce electric sparks when working, so please do not use it in flammable or explosive environments.
• If the device makes a strange noise or the temperature becomes too high when working, turn off the machine immediately.
• Before setting the inflation pressure value, please ensure the correct unit of measurement is selected, otherwise it may lead to accidents such as tire blowouts. Common unit conversion: 1bar=14.5psi, 1bar=100kPa.
• Do not leave the device unattended when it is inflating and check the inflation process to prevent over-inflation, especially when a preset air pressure has not been selected.
• Please use in a dry and clean environment; mud, sand, and dust intrusion may cause damage to the product. The product is not waterproof and must not be rinsed with water.

Troubleshooting

Basic Parameters

Name and Content Levels of Harmful Substances in the Product

O means that the content of the hazardous substance in all homogeneous materials of the part is below the limit specified in the GB/T 26572 standard. X means that the content of the hazardous substance in at least one homogeneous material of the part exceeds the limit requirement of GB/T 26572 standard.

Mi Brand Inflatable Product Warranty Description

Mi Brand Inflatable after-sales service is in accordance with the "Consumer Rights Protection Law of the People's Republic of China" and "Product Quality Law of the People's Republic of China". The service description is as follows:

1. Within 7 days from the day after you signed the receipt for the product, if the product has any of the faults listed in the "Mi Home Inflatable Product Fault Table", you can enjoy free return or exchange services as determined by the Xiaomi After-Sales Service Center.
2. Within 8-15 days from the day after you signed the receipt for the product, if the product has any of the faults listed in the "Mi Home Inflatable Product Fault Table", it can be replaced or repaired free of charge as determined by the Xiaomi After-Sales Service Center.
3. Within 12 months from the day after you signed the receipt, if the product has any of the faults listed in the "Mi Home Inflatable Product Fault Table", the product will be repaired free of charge as determined by the Xiaomi After-Sales Service Center.

Mi Home Inflatable Product Fault Table

The following are the regulations for when the warranty is not valid:

1. Unauthorized repair, misuse, collision, negligence, abuse, fluid intake, accident, alteration, incorrect use of accessories other than those approved for the product, or torn or altered labeling.
2. Has exceeded the expiration date of the three warranty packages.
3. Damage caused by force majeure.
4. The fault is not listed in the "Product Fault Table".
5. Due to misuse of the product and its accessories, one of the faults listed in the "Product Fault Table" has occurred.

If you have any after-sales service requirements, please call Xiaomi service phone: 400-100-5678 or visit the Xiaomi after-sales service website: www.mi.com/service.