MEGAWISE G23 1500A 12V Jump Starter, 16800mAh

The MEGAWISE G23 is a 12V jump starter with a stated 1500A peak current and 16800mAh battery capacity. It also claims dual USB outputs, USB-C recharging and a three-mode LED light, combining roadside starting support with basic portable-device charging.

At a glance

The listing claims 1500A peak current for 12V vehicles, with gasoline-engine compatibility up to 7.0L and diesel up to 5.0L.
Dual USB outputs let it serve as a power bank for compatible USB devices.
Smart clamps are described as having a display and audible alerts for voltage, connection status and operating errors.
The LED has flashlight, strobe and SOS modes, and the unit recharges via USB-C.

Price

$32.80Save 10%

Reference price: ~~$36.44~~

Price checked: Nov 13, 2026

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Pros and cons

Pros

Combines a jump starter and dual-output USB power bank in one device.
The displayed clamp status and audible alerts are intended to make connection checks easier to understand.
USB-C recharging and a three-mode light add practical roadside and travel functions.

Technical specifications

12 specifications

Identity
Brand	MEGAWISE
Model	G23

Power and battery
Battery type	Lithium Ion
Voltage	12 volts
Battery capacity	16800 milliamp_hours
Peak output current	1500 A
Claimed engine compatibility	gasoline engines up to 7.0L and diesel engines up to 5.0L

Charging and lighting
USB outputs	dual USB outputs
Recharge connection	USB-C connection
LED modes	flashlight, strobe and SOS settings

Dimensions and installation
Dimensions listed	19.05"D x 3.56"W x 8.89"H
Weight listed	1.3 pounds

What to know before buying

The claimed 1500A peak output and engine-size limits are manufacturer specifications, not independently verified performance. Confirm that the limits suit your vehicle and follow the included operating instructions before use.
Customer feedback is mixed on battery charge retention and durability, so buyers who need dependable long-term emergency readiness may want to pay particular attention to keeping the unit charged and its condition.

What’s in the box

Included

ALL

Who is it for?

A good fit for

Drivers who want a portable 12V jump starter with a USB power-bank function and an emergency light.
Buyers looking for clamp status alerts and a USB-C recharge connection.

Less suited to

Buyers who need independently confirmed jump-start performance or a stated assurance of long-term battery retention and durability.

MEGAWISE G23 1500A 12V Jump Starter, 16800mAh · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 2,142 ratings

5 stars77%77%
4 stars10%10%
3 stars4%4%
2 stars2%2%
1 star7%7%

Customer feedback reports that the unit is easy to use compared with traditional jumper cables and praises its compactness, portability, and starting power, including for V8 engines. Those comments fit its listed portable jump-starter and USB power-bank role, but do not verify performance for a particular vehicle. Feedback is mixed on whether it holds charge and on durability, which matters for an emergency device that may be stored between uses.

Positive themes

Customers describe it as easier to use than traditional jumper cables and appreciate its compact size and portability.
Customers report useful starting power, including for V8 engines.

Mixed feedback

Battery life feedback is mixed, with some saying it stays charged and others reporting charging problems.
Durability feedback is mixed, with reports ranging from solid construction to failure after limited use.

Frequently asked questions

What vehicles does the listing say the G23 can support?

The listing specifies 12V vehicles and claims compatibility with gasoline engines up to 7.0L and diesel engines up to 5.0L. Check your vehicle's requirements against those stated limits.

Can it charge phones or other USB devices?

Yes. The listing describes dual USB outputs for compatible USB devices. It does not specify output charging rates.

How does the jump starter recharge?

The listing says it recharges through a USB-C connection. It does not state a recharge time.

What lighting modes are included?

The listed LED modes are flashlight, strobe and SOS.