WOLLAR B33L 3000A Jump Starter with Air Compressor

The WOLLAR B33L jump starter combines a claimed 3000A peak output with a dual-cylinder air compressor, USB power-bank function and LED lighting. Its stated engine range and inflation pressure are manufacturer claims, so check them against your vehicle and intended use before relying on the pack.

At a glance

The listing describes jump-starting support for 12V vehicles, including cars, lawnmowers and motorcycles.
A dual-cylinder compressor is claimed to reach 160 PSI, with real-time pressure display in four units.
The claimed 20,000mAh capacity also serves as a power bank for phones and other USB devices.
Dual-sided LED lighting has four modes, while a display shows battery level and operating status.

Price

£89.99Save 40%

Reference price: ~~£149.99~~

Price checked: 13 Nov 2026

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Pros and cons

Pros

Combines jump starting, tyre inflation, USB-device charging and emergency lighting in one unit.
The compressor display supports PSI, BAR, kPa and kg/cm², giving flexibility for different pressure readings.
The listing gives a carrying weight of 1.32 kg and describes a side handle and storage bag.

Cons

The manufacturer says the unit is not waterproof and warns against leaving it in direct sunlight, a hot car or other high-temperature environments.
Low-pressure items such as balloons, toy balls and swim rings do not receive automatic shut-off at a preset pressure, according to the listing.

Technical specifications

11 specifications

Identity
Brand	WOLLAR
Model	B33L

Electrical and inflation claims
Peak current	3000 Amps
Voltage	12 Volts
Battery capacity	20,000mAh
Maximum inflation pressure	160 PSI

Dimensions and installation
Weight listed	1.32 kg
Package dimensions	27 x 14.7 x 14.5 cm; 1.32 kg

Claimed vehicle and use compatibility
Engine support	Supports up to 9.0L Petrol and 9.0L diesel engines
Inflation display units	PSI, BAR, kPa, and kg/cm²
Lighting modes	4 lighting modes

What to know before buying

Listing details to confirm

The jump-starting instructions say to start the engine within 40 seconds after the indicator turns solid green. If it does not start, disconnect the clamps, wait 20 seconds and retry. Recharge at least every three months to maintain battery health. The listing details are inconsistent about weight presentation because package dimensions include 1.32 kg while item weight is also given as 1.32 kg. The stated 160 PSI, 3000A peak current, 20,000mAh capacity and engine compatibility are manufacturer claims, not independently confirmed.

Who is it for?

A good fit for

Drivers wanting one portable unit for claimed jump-starting, tyre inflation, phone charging and roadside lighting.
Buyers whose vehicles fall within the listing's stated 12V and engine-size claims, after checking compatibility with their vehicle.

Less suited to

Anyone needing a waterproof unit or intending to store it in a hot vehicle or direct sunlight.
Inflating low-pressure toys or other items where automatic shut-off at a preset pressure is required.

WOLLAR B33L 3000A Jump Starter with Air Compressor · photo 2 — Additional product photo 2

Customer reviews on Amazon

4 / 5 · 10 ratings

5 stars61%61%
4 stars21%21%
3 stars0%0%
2 stars0%0%
1 star18%18%

Only aggregate ratings are supplied, with a 4.0 out of 5 average from a small sample. This gives a limited overall signal but does not establish specific customer-reported strengths or problems. The ratings do not verify the listed jump-start, compressor or battery claims.

Frequently asked questions

What engine sizes does the listing say the WOLLAR B33L supports?

It claims support for petrol engines up to 9.0L and diesel engines up to 9.0L. Treat these as manufacturer claims and check compatibility with your vehicle before relying on them.

Does the compressor stop automatically at a preset pressure?

The listing warns that it does not automatically stop at a preset pressure when inflating low-pressure items such as balloons, toy balls or swim rings. It does not clearly confirm automatic shut-off behaviour for other uses.

Can it charge a phone?

The manufacturer describes a 20,000mAh battery that can function as a power bank for phones and other USB devices.

How should the unit be stored and maintained?

The listing advises avoiding direct sunlight and hot environments, keeping it away from water, and charging it at least once every three months.