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Product guide

Alltolink A9 3000A 12V Jump Starter

Alltolink A9 is a portable 12V jump starter listed with a 3000A peak current for petrol and diesel engines. It also claims USB device charging, an LCD display, four LED light modes and a compass, making it a multi-purpose pack for vehicle and emergency use.

At a glance

Manufacturer claims 3000A peak current for 12V petrol and diesel engines, and names motorcycles, cars, trucks, tractors, lawnmowers, snowploughs and off-road vehicles as possible applications.
USB-A and USB-C outputs can charge compatible portable electronics. The listing gives output profiles for both ports.
An LCD display, four claimed light modes and a compass add monitoring and emergency-use functions beyond jump starting.

Price

£24.64Save 15%

Reference price: ~~£28.99~~

Price checked: 12 Nov 2026

View offer

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Pros and cons

Pros

USB-A and USB-C outputs extend use to charging compatible phones, tablets and other portable electronics.
The four listed light modes include SOS and warning light functions, alongside a compass.
Manufacturer-listed kit includes a USB-C charging cable.

Technical specifications

18 specifications

Identity
Brand	Alltolink
Model	A9

Display and video
Screen technology listed	LCD

Power and battery
Battery type	Lithium Polymer
Voltage	12 Volts
Capacity	26640 Milliamp Hours
Peak current	3000 Amps
Claimed energy capacity	26640mWh

Charging and outputs
Type-C input	5V/9V-2A
USB-A output	5V/2.4A
USB-C output	5V/3A, 9V/2.22A, 12V/1.67A

Vehicle use
Vehicle service type	Automotive
Engine compatibility claim	12V Diesel and Gasoline Engines
Operating temperature claim	-30°C to 65°C

Lighting and other features
LED light modes	Flashlight, Strobe, Warning Light, and SOS Mode
Additional feature	Compass

Other details
Country of origin	China
Manufacturer warranty description	1-year manufacturer's warranty

What to know before buying

Listing details to confirm

Listing details are inconsistent about battery capacity: the technical details say 26640 Milliamp Hours while the feature text says 26640mWh, which measures energy rather than capacity. The title and feature text give a 3000A peak current, not a continuous-current figure. The -30°C to 65°C tolerance and broad vehicle compatibility are manufacturer claims, so confirm suitability for your specific engine and conditions.

What’s in the box

Included

USB-C charging cable

Who is it for?

A good fit for

Drivers wanting a portable jump starter for a 12V vehicle who also value USB charging and emergency lighting.
Buyers who want a compact roadside device with a display and compass as well as jump-starting capability.

Less suited to

Buyers who need confirmed engine-size limits or independently substantiated cold- or heat-weather performance.
Buyers who need a clearly specified battery energy capacity before purchase.

Alltolink A9 3000A 12V Jump Starter · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.6 / 5 · 529 ratings

5 stars81%81%
4 stars12%12%
3 stars4%4%
2 stars1%1%
1 star2%2%

Customer feedback describes the jump starter as a strong piece of kit and highlights perceived quality and value. The aggregate ratings are mostly five-star, but ratings cannot establish jump-starting performance or compatibility. For buyers considering it as a roadside device, the positive sentiment is encouraging, while the conflicting battery-capacity units and unspecified engine-size limits remain important practical checks.

Positive themes

Customer feedback highlights product quality.
Customers describe it as good value for money.

Frequently asked questions

Which vehicles is the Alltolink A9 claimed to support?

The listing describes it as a 12V starter for petrol and diesel engines and names vehicles including cars, motorcycles, trucks, tractors and lawnmowers. It does not give engine-size limits, so check compatibility for your vehicle before buying.

Can it charge phones or other devices?

The listing specifies USB-A and USB-C charging outputs, with different voltage and current profiles. Check that your device and cable support the relevant output.

What do the listing’s battery-capacity figures mean?

They conflict: product details list 26640 Milliamp Hours, while feature text lists 26640mWh. The latter is an energy unit, so the stated battery capacity is not clear from the supplied listing.

What lighting features are listed?

The product description lists flashlight, strobe, warning light and SOS modes, as well as a compass.