Walmart: VTOMAN V7 4500A Jump Starter for 12V Vehicles - $54.99 (54% off)

The VTOMAN V7 portable jump starter delivers a peak current of up to 4,500 A and is designed for vehicles with a 12V on-board network, gasoline engines up to 10 liters in displacement, or diesel engines up to 8 liters in displacement. The device starts the engine in just 1-3 seconds, making it a useful emergency tool: it's conveniently stored in the trunk—especially during cold weather or if the car battery is worn out. In addition to its primary engine starting function, the VTOMAN V7 can be used as a power bank for charging phones and other electronic devices. It also has a built-in LED flashlight with three modes: constant light, strobe, and SOS signal (for roadside emergencies). Weighing approximately 0.57 kg (1.25 lbs), the device retains its charge in standby mode for up to 24 months, and a full charge is sufficient for approximately 40 engine starts. Safe operation is ensured by 10 built-in protection systems. The device can operate in temperatures ranging from -20°C to 60°C (-4°F to 140°F). The housing is made of waterproof materials, and the manufacturer provides an 18-month warranty. Overall, it's a useful and essential item for every car owner's glove compartment.