The J503 compact Jump Starter is a powerful lithium-ion car battery jump starter for 12-volt batteriesin vehicles with all gasoline engines and up to 10.0-liter diesel engines. With a 20,000 mAh battery pack and 6,000 amps peak current, this jump start battery pack can safely start a dead battery up to 60 times!

Easily and safely connect to any 12V battery from jump start battery pack power to trucks using the AUXITO J503’s built-in smart clip, making it easier and faster to start your car.
Introducing the force starting function of the J503 battery jump box, pressing the "boost" button for 7 seconds offers more starting power to your vehicle and starts your vehicle immediately in any state!

The LCD screen indicator light makes your operation and usage status clear at a glance, and error operation prompts along with hot/cold LED indicators for battery operating temperature protect your battery and device.

With USB-A, USB-C, and DC ports(160 W Max output), the J503 jump box for car also works as a 20,000mAh power bank ready to charge all your devices. 60W speed charging charges from 0% to 100% in less than 2 hours, while an information screen shows battery levels so you can easily monitor it.

The 620LM flashlight on the J503 compact jump pack for car is comparable to a tactical flashlight, with 3 light modes that allow you to adapt to any situation, including SOS and emergency Strobe. Use its powerful brightness to help you see the engine, change a tire at night, or even warn oncoming vehicles when you need roadside assistance.

Equipped with the latest QDSP technology, the J503 battery jump starter significantly improves starting performance and can easily start a car in extreme environments (-4°F to 140°F), reducing the starting temperature by 50%. With 10 safety protections such as spark-proof technology and reverse polarity protection, this jump-start battery pack can be safely connected to any 12V battery.