You can simply clamp-on, connect to the car battery, and start your car while your car battery is dead from age or weather. Peak current: 3000A. 100W Fast-Charging Car Jump Starter. Armor is beyond a jump starter.

Brand: Yesper
Manufacturer Part Number: B-ARMOR 317
Type: Jump Starter
Voltage: 12V
Features: Portable, USB Charger, LED Light
Peak Amps: 30000A
Capacity: 20000mAh
Accessories: Carrying Case, Charging Cable, Clamps, User Manual
Warranty: 1 Year
Set or Single Item: Set
Country/Region of Manufacture: China