AstroAI S8 Jump Starter, 1500 A Peak

Peak: The AstroAI S8 jump starter is a portable 12 V booster pack listed for engines up to 6.0 L gas or 3.0 L diesel. It also claims power-bank and three-mode flashlight functions, while the listing gives conflicting product dimensions that are worth confirming before purchase.

At a glance

The listing claims 1500 A peak current and suitability for gas engines up to 6.0 L or diesel engines up to 3.0 L.
Boost mode detects battery voltage. The listing says a flashing green indicator at less than 9 V unlocks the BOOST button for fully drained batteries.
Three light modes are listed: flashlight, strobe and SOS.
The listing describes it as a jump starter, portable power bank and LED flashlight.
Eight stated protections include reverse polarity, reverse connection, overcurrent, overvoltage, overload, overcharge, over-discharge and short circuit.

Price

$47.59Save 15%

Reference price: ~~$55.99~~

Price checked: Nov 12, 2026

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Pros and cons

Pros

Combines jump-starting with a claimed power-bank function and three light modes.
A dedicated boost procedure is described for batteries below 9 V, including fully drained batteries.

Technical specifications

8 specifications

Identity
Brand	AstroAI
Model	S8

Power and battery
Battery type	Lithium-Nickel Manganese Cobalt (NMC)
Battery capacity	8000 milliamp_hours
Peak output current	1500 A

Dimensions and installation
Weight listed	430 g

Vehicle compatibility
Vehicle service types	ATV, Passenger Car, Truck, UTV
Claimed engine capacity	Up to 6.0L Gas or 3.0L Diesel

What to know before buying

Listing details to confirm

Listing details are inconsistent on dimensions: one field gives 11.4D x 20.1W x 9.4H centimetres, while another gives 10 x 10 x 10 cm; 430 g. The stated 430 g weight is separate from that dimension conflict. Confirm the dimensions if fit matters. The battery chemistry is listed as NMC in the specifications but as Lithium Polymer in the battery-required field, so the exact chemistry is unconfirmed. The 1500 A figure and engine limits are listing claims, not independent performance measurements.

Who is it for?

A good fit for

Drivers who want a portable booster for a compatible 12 V vehicle and also value a flashlight and power-bank function.
Buyers who may need the listed boost procedure for a battery with voltage below 9 V.

Less suited to

Anyone needing confirmed product dimensions or a settled battery-chemistry specification before buying.
Vehicles whose engine size exceeds the listed limits or that do not use a compatible 12 V system.

AstroAI S8 Jump Starter, 1500 A Peak · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.6 / 5 · 10,939 ratings

5 stars80%80%
4 stars11%11%
3 stars3%3%
2 stars1%1%
1 star5%5%

Customer feedback is broadly positive about operation, ease of use, compactness, instructions and portability, while battery-life opinions are mixed. That feedback may matter to buyers storing a booster for roadside use, since portability supports carrying it in a vehicle but battery-life uncertainty makes readiness over time a consideration. The listing separately claims an 8000 milliamp_hours capacity, which does not resolve those differing experiences.

Positive themes

Customers describe the unit as easy to use and appreciate its compactness and portability.
Feedback describes its functionality and quality favourably.

Mixed feedback

Customer opinions are mixed about battery life.

Frequently asked questions

What engine sizes does the AstroAI S8 claim to support?

The listing says up to 6.0 L for gas engines or 3.0 L for diesel engines. These are manufacturer claims, not independent performance verification.

How does the boost mode work?

The listing says the unit detects battery voltage. Below 9 V, a green indicator flashes and the BOOST button can be pressed to start a fully drained battery.

Does the S8 include a flashlight?

The listing describes an LED light with flashlight, strobe and SOS modes.

Are the listed dimensions consistent?

No. One specification gives 11.4D x 20.1W x 9.4H centimetres, while another gives 10 x 10 x 10 cm; 430 g. Confirm the dimensions if they affect storage or fit.