DIHOOM CQB-3Y Cordless Tyre Inflator, 45 L/min

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Product guide

DIHOOM CQB-3Y Cordless Tyre Inflator, 45 L/min

DIHOOM CQB-3Y is a cordless tyre inflator with a claimed 45 L/min airflow, battery and car-cord power options, and support for inflating tyres and other items. Its stated 36 PSI maximum and recommended 10-minute operating periods make it better suited to topping up tyres and occasional inflation than extended continuous use.

At a glance

Claimed 45 L/min airflow, with listing examples of topping a car tyre from 29 PSI to 36 PSI in 1 minute and from 0 PSI to 36 PSI in 5 minutes.
Runs from its built-in battery or the supplied car power cord, according to the listing.
Four preset modes, adjustable pressure settings and automatic shut-off are claimed.
USB output can charge devices, and the LED offers lighting, warning and SOS modes.

Price

£19.54Save 15%

Reference price: ~~£22.99~~

Price checked: 13 Nov 2026

View offer

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£2.99

Pros and cons

Pros

Battery operation and a car power-cord option give flexibility when the battery is low.
Supplied converter heads are intended for tyres, balls and other inflatables.
Customer feedback describes it as compact and convenient to keep in a car for emergencies.

Cons

The stated maximum pressure is 36 PSI, so it is not specified for applications requiring higher pressure.
The listing recommends a 10-minute inflation period followed by a 10-minute rest, limiting continuous use.

Technical specifications

15 specifications

Identity
Brand	DIHOOM
Model	CQB-3Y

Power and battery
Power configuration	Battery Powered
Battery capacity	6000mAh
Battery runtime claim	up to 30 minutes
Alternative power	car power cord
Voltage	12 Volts (DC)

Inflation
Airflow capacity	45 Litres Per Minute
Maximum pressure	36 Pound per Square Inch
Inflation modes	4 preset inflation modes
Recommended uses	Tire Inflation, Inflating Balls and Inflatables
Noise level	72 Decibels

Additional functions
USB output	USB output port
LED light modes	3 modes
Colour	Black

What to know before buying

The listed battery duration is up to 30 minutes, but continuous use is recommended for 10 minutes followed by a 10-minute rest to avoid high temperatures at the air outlet. Inflation-time examples and airflow are manufacturer claims, not independently verified performance.

What’s in the box

1 electric inflatable pumpIncluded
1 car power cordIncluded
1 inflatable hoseIncluded
1 storage bagIncluded
4 inflatable converter headsIncluded
1 USB charging cableCheck selected pack

Check which accessories are included in your selected pack before buying.

Who is it for?

A good fit for

Drivers wanting a compact inflator for tyre top-ups and occasional roadside use.
Cyclists and people inflating balls or compatible inflatables who want multiple nozzle options.
Buyers who could use a USB power source and LED lighting alongside an inflator.

Less suited to

Users needing inflation above the stated 36 PSI maximum.
Anyone expecting long, uninterrupted inflation sessions without rest periods.

DIHOOM CQB-3Y Cordless Tyre Inflator, 45 L/min · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.2 / 5 · 782 ratings

5 stars65%65%
4 stars15%15%
3 stars6%6%
2 stars5%5%
1 star9%9%

Customer feedback highlights easy car storage, compact size, perceived quick inflation and useful power-bank functionality. Battery experience is mixed, with reports ranging from quick recharging to charge draining fairly quickly. For emergency tyre top-ups, portability and inflation speed matter, but battery uncertainty and the stated rest period are relevant if you expect to inflate several items in one session.

Positive themes

Customers describe it as compact and easy to store in a car.
Feedback reports quick inflation and appreciates the power-bank function.

Mixed feedback

Battery life receives mixed feedback, including reports of quick recharging and of the charge draining fairly quickly.

Frequently asked questions

What is the stated maximum pressure?

The listing specifies a maximum pressure of 36 Pound per Square Inch. Check that this suits the pressure requirements of your intended tyres or equipment.

Can it operate if the battery is low?

The manufacturer says it can be powered through the car power cord when the built-in battery is low.

How long can it run continuously?

The listing claims up to 30 minutes of battery life, but recommends inflating for 10 minutes and then resting for 10 minutes to prevent high temperatures at the air outlet.

What else can it inflate?

The listing names cars, bicycles, motorcycles, balls and inflatables, and says converter heads are supplied. Match the nozzle and pressure needs to the item before use.