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Atkmayi N12 3000A Jump Starter Review

I still remember the days when a dead car or truck battery meant having someone pull up alongside you and running cables between the vehicles. While that certainly works, new products like the Atkmayi N12 3000A Jump Starter battery pack render that method obsolete—and work far more conveniently. With one of these Atkmayi jump starters, you can basically jumpstart a vehicle all by yourself.

How the Atkmayi N12 3000A Power Jump Starter Works

The Atkmayi N12 3000A Power Jump Starter, along with other portable jump starters, operates by discharging its internal lithium-polymer batteries at high current levels. This particular model is capable of delivering a starting current of up to 3000 peak amps, albeit only for a brief period during the discharge into the 12V vehicle battery. Nevertheless, we have tested the device and it performs as advertised, capable of quickly jump-starting a car, SUV, or even a truck with an engine size of up to 10.0L gas or 8L diesel.

The process for jump-starting a vehicle works as follows:

  1. Press the yellow Function button on the Atkmayi 3000A Jump Starter and make sure you have at least 3 blue LED lights. That indicates you have over 50% charge remaining in the N12 jumper.
  2. Plug the included jumper clamps/cables into the jump starter.
  3. Connect the red clamp to the positive (+) terminal and the black clamp to the negative (–) terminal of your vehicle battery. The red LED display shows the measured voltage of the battery.
  4. Note the indicator light on the jumper clamps assembly. When it turns solid green, it means the clamps are connected and the jump starter is ready. If you don’t connect the clamps properly or another fault is detected, the indicator light shows red.
  5. Start your engine like you normally would. If it doesn’t start right away, you may want to wait a few minutes and try again.
  6. After the vehicle starts, remove the clamps.

We like the idea behind the LED readout on the clamps, however, it’s way too dim to read in full sunlight. They need a better, brighter display.

voltage display
You can barely read the voltage display in full sunlight.

More Atkmayi 3000A Jump Starter Details

The Atkmayi N12 Jump Starter boasts 8 levels of protection. That means you won’t likely break the charger by reversing the jumper clamps or operating it at higher temperatures. Essentially they “foolproofed” this battery jumper. As jump-starting a car or truck can happen in conjunction with all manner of stress, we like anything that reduces the potential for accidental damage.

jumpstarter inputs

The Atkmayi N12 jump starter is equipped with safety features such as short-circuit protection, overcurrent protection, overvoltage protection, and overload protection. These features prevent accidental damage to the jump starter when in use. It’s worth noting that we did not perform destructive tests, so we only used the device as intended and didn’t test the protection functionality by leaving it connected for too long or reversing the cables.

12VDC output

Other Handy Features

On the Atkmayi N12 3000A Jump Starter, the USB output ports have the ability to charge mobile phones as well as laptops. Port 1 operates at three different voltages: 5V/3A, 9V/2A, or 12V/1.5A. In addition, there is a second 5V 2.1A USB port that delivers quick charging to phones. The sole USB-C port serves as the input charging port for the Atkmayi N12 jump starter, but it can also output 5V/3A.

LED light

Additionally, it features a brilliant LED flashlight that activates by pressing and holding the red multi-purpose button. This flashlight also includes strobe and SOS modes, which alternate when you press the button again after the flashlight is activated.


The Atkmayi 3000A Jump Starter performed exactly as promised. We successfully jump-started a 2003 Jeep Liberty with ease, and based on our experience with similar products, we believe it can handle most full-size vehicles and other vehicles. However, the abundance of companies producing portable battery-powered jump starters is a concern. It can be difficult to determine which models are safe. Nonetheless, in our years of using four different generic brand models, we haven’t encountered any issues. This suggests that manufacturers may have found a way to safely discharge these battery packs for their intended use.

In the end—is the $99 (often priced around $69.99) Atkmayi 3000A a product that can jump-start your vehicles? Absolutely. It matches up well with most other jump-starters we’ve tested—even providing a bit more available power for the money.


  • Model: N12 3000A
  • LED lighting modes: Flashlight/strobe light/SOS
  • Safety rating: ETL/CE/FCC/RoHS certified
  • Peak current: 3000A
  • Capacity: 20.0Ah, 76.96 Wh
  • Engine compatibility: Up to 10.0L gas/8L diesel
  • Smart clamps intelligent jump clamps with 8 protection system
  • Power output: Dual USB quick charging ports (5V/9V/12V ); 12V/10A DC output
  • Lifetime: 1000+ cycles
  • Weight: 2.2 pounds
  • Dimensions: 7.7 x 3.5 x 1.4 in.
  • Includes: Jump starter, jumper clamps, USB charging cable, user guide
  • Price: $99.99 (look for frequent sales)