A jump starter is a crucial component of any vehicle's emergency toolkit, and opting for a cordless model removes the inconvenience of relying on a cigarette lighter port. You don't have to spend a fortune to get a reliable unit either. Right now, Amazon has the AstroAI S8 Pro 12V 3,000A cordless car jump starter available for $35.99 shipped—just apply the 40% off coupon at checkout. Beyond its primary function, this compact device doubles as a power bank for charging smartphones when needed.
AstroAI S8 Pro 12V 3,000A Car Jump Starter – $35.99
[Clip the 40% Off Coupon]
Amazon AstroAI S8 Pro 3,000A 12V Cordless Lithium Car Jump Starter$79.99
Save 55% → $35.99 at Amazon
The AstroAI S8 Pro delivers powerful performance in a compact form factor. As a 12V lithium-ion jump starter, it offers 3,000A peak current and 500 cold cranking amps, making it capable of starting engines up to 9L gas or 6L diesel. Its high-capacity 12,000mAh battery supports multiple jump starts on a single charge. Thanks to its NMC lithium chemistry, it holds its charge significantly longer than traditional lead-acid alternatives—retaining most of its power even after two years of storage.
In addition to jump-starting your car, the S8 Pro functions as a portable power bank, allowing you to recharge smartphones or other USB-powered devices on the go. It features fast charging via USB Type-C, and a USB Type-A to Type-C cable is included for added convenience.
For added utility, the device includes a built-in LED flashlight with three modes: standard flashlight, SOS, and strobe—ideal for nighttime emergencies or signaling help. Weighing just 1.5 pounds and designed for easy storage, it fits comfortably in your glove compartment or trunk without taking up much space.
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