Our favorite portable jump starter is just $99 (down from $189) for a limited time

This deeply discounted portable jump starter can resurrect full-sized SUVs and huge trucks without hesitation.

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You really should keep a portable jump starter in your car. These compact devices have enough power inside to revive a dead battery, allowing you to get home or at least to a safe location. Right now, Gooloo’s powerful GOOLOO GT4000S model is just $99, down from its regular $189 price. That’s 47% off the regular price. I have only seen it this cheap once this year, and it didn’t last long.

GOOLOO GT4000S Jump Starter 4000A Car Jumper Starter — $99 (was $189)

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It may look relatively unassuming, but this rugged little box has enough juice inside to jumpstart up to a 12-liter gas engine. Unless you’re driving a giant tractor-trailer rig, that’s more than enough to bring your car back to life. The built-in cables easily connect to your car’s battery terminals with easy-to-read color coding. It’s nearly impossible to screw it up.

It charges quickly with a 100-watt charger. So, it’ll go from 0 to 100 percent full in 1.2 hours, or charge it for as little as five minutes and get enough juice into it to jump-start the average car. Once it’s charged, the Gooloo can hold a charge for up to two years, so it doesn’t require much maintenance at all.

Even if you don’t need a jump start, this device can still come in handy. It works as a powerful portable charger that can juice up any device, including an electricity-hungry laptop.

It may not be fun to buy emergency preparedness gear, but this thing may very well save you, especially once the temperatures start dropping this winter.

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Stan Horaczek

Executive editor, gear and reviews

Stan Horaczek is the executive gear editor at Popular Science. He oversees a team of gear-obsessed writers and editors dedicated to finding and featuring the newest, best, and most innovative gadgets on the market and beyond.