Jump Start Gas or Diesel Engines Up To 6.0L Without Needing a Second Vehicle with the Uncharted Supply Co Athena Jump Starter
No matter what kind of vehicle you drive, thereโs going to come a time when the battery doesnโt have enough juice to get you going. While EV owners have to deal with that differently, gas and diesel vehicles can take advantage of the Uncharted Supply Co Athena Jump Starter.
Want more options? Check out our best jump starter recommendations!
Using the Uncharted Supply Co Athena Jump Starter

In terms of capacity, the Athena can help you get any gas or diesel engine started up to 6.0 liters that use a 12V battery. With the built-in 16000mAh lithium battery, you can get as many as 15 jumps out of one charge.
The thing to remember is that jump starters like this canโt fully replace your vehicleโs battery. They give it a boost to bridge the gap between what your failing battery can still deliver and what the vehicle needs. In other words, donโt assume you can keep a dead battery indefinitely. Use the Athena to keep you starting until you can get to the store for a replacement battery.
Need some recommendations? Check out our best car battery recommendations for the year!
Using the jump starter is a piece of cake:
- Insert the plug into the battery pack
- Connect the jaw clamps black to negative and red to positive on your battery terminals
- Start your vehicle
If the engine doesnโt start, disconnect the jump starter, wait 30 seconds, and reconnect it.
If it still doesnโt start after three attempts, connect it to the battery, press and hold the Force Start Button (on the underside of the connection plug), and try again.
Thereโs an LED battery indicator on to help you out. Hereโs how to interpret it:
- Flashing green: charge the Athenaโs battery
- Alternating green and red: youโre good to proceed
- Red: error (often a reversed connection to your car battery)
Bonus Features

As long as youโre going to have a lithium battery in your vehicle, it might as well have some extra functions since you donโt need to jump-start your battery every day. You donโt need to have the cable connected to use any of the bonus features.
The Athena has a built-in LED flashlight. Just press the power button for 3 seconds to turn it on. Give it a short press to cycle through steady, SOS, and flashing modes. Long press again to turn the light off.

You can also use the battery as a power supply. There are 2 USB-A and 2 USB-C ports behind the cover where you plug the jumper cables in. To activate them, press the power button.
Keep in mind that as youโre using these additional features, youโre drawing down the battery. Be sure to charge it back up so it has the power to start your vehicle when you need it.
Uncharted Supply Co Athena Jump Starter Price

The retail price for the Athena is $139. You can order it directly from Uncharted Supply or a variety of online retailers. It comes with a foam-padded soft case with separate sections for the battery and cables.
The Bottom Line
The Uncharted Supply Co Athena Jump Starter is a must-have accessory for car owners. Whether itโs the cold weather making things tougher or the hot weather reducing your battery life, youโre going to need a jump at some point. The Athena eliminates the need to get a second vehicle involved while offering bonus functions as a power bank and flashlight. The only real limitation is that itโs for 6.0L engines and under. If you have a bigger engine, check out Uncharted Supplyโs Zeus Pro which has the capacity to jump engines up to 8.0L.
