Pownym GL987 12V Portable Car Jump Starter

Portable: The Pownym GL987 is a compact 12V jump starter that the listing also describes as a USB power bank with built-in emergency lighting. It is positioned for passenger cars, but the supplied details do not establish a compatible engine-size range, so confirm suitability for your vehicle before relying on it.

At a glance

The listing describes USB charging for mobile devices, including smartphones and laptops.
Four built-in LED lights are listed with steady, flashing and SOS modes.
The listing claims 10 safety protection features, including overcurrent, short-circuit, overload and overvoltage protection.
The manufacturer advises charging the unit every three months during extended storage.

Price

$33.59Save 40%

Reference price: ~~$55.99~~

Price checked: Nov 14, 2026

View offer

Pros and cons

Pros

Compact listed dimensions and a listed weight of 1.6 pounds may suit storage in a vehicle.
USB device charging and multiple emergency-light modes add uses beyond jump starting.
A stated storage-maintenance interval gives buyers a clear upkeep instruction.

Technical specifications

10 specifications

Identity
Brand	Pownym
Model	GL987

Power and battery
Battery type	Lithium Polymer
Voltage	12 volts
Claimed battery capacity	8000 amp_hours
Claimed amperage	7000 A

Vehicle compatibility
Vehicle service type	Passenger Car
Automotive fit	Universal Fit

Dimensions and installation
Dimensions listed	1.5"D x 3.5"W x 7"H
Weight listed	1.6 pounds

What to know before buying

Listing details to confirm

Listing details are internally inconsistent or unconfirmed: the title says USB and LED, while feature copy specifies four lights and a USB-C cable, but no USB output type or charging specifications are given. The battery capacity is stated as “8000 amp_hours” and the claimed 7000 A is not identified as peak or continuous current. A feature highlight claims 12L gas/6L, but engine compatibility is otherwise only described as passenger car. Confirm the exact capacity, current rating, supported engine range and selected kit before buying.

What’s in the box

Jump starterIncluded
Smart clampsCheck selected pack
USB-C cableCheck selected pack
User manualCheck selected pack

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

Who is it for?

A good fit for

Drivers seeking a compact emergency starter for a passenger car, subject to confirming vehicle compatibility.
Buyers who want a jump starter that the listing says can also charge mobile devices and provide steady, flashing or SOS lighting.

Less suited to

Buyers who need a clearly documented engine-size rating, USB output specification or verified capacity and current rating.

Pownym GL987 12V Portable Car Jump Starter · photo 2 — Additional product photo 2

Customer reviews on Amazon

5 / 5 · 11 ratings

5 stars100%100%
4 stars0%0%
3 stars0%0%
2 stars0%0%
1 star0%0%

The supplied evidence contains aggregate star ratings but no customer comments. The ratings are uniformly five-star in this small sample, which is a limited positive signal rather than evidence about specific performance or durability. Buyers should still verify the unclear capacity, amperage and engine-compatibility claims before depending on it for roadside starting.

Frequently asked questions

What vehicles is the Pownym GL987 listed for?

The listed vehicle service type is passenger car. A feature highlight also mentions 12L gas and 6L, but the listing does not clarify the engine-fuel context or reconcile that claim with the passenger-car description. Check compatibility for your specific vehicle.

Can it charge phones or laptops?

The feature text says it can function as a power bank for mobile devices such as smartphones and laptops. It does not specify USB output types or charging speeds.

What lighting modes does it have?

The feature text describes four built-in LED lights with steady, flashing and SOS modes.

Can it replace a faulty car battery?

No. The listing says it is for emergency engine starting and cannot fully replace the vehicle's original battery.

How should it be stored when not in use?

The listing recommends charging it every three months during extended storage. It also advises allowing the device to cool before further use after frequent switching between functions.