Men’s Journal aims to feature only the best products and services. If you buy something through one of our links, we may earn a commission.

Picture this: you get into your car on a frosty morning, turn the key, and nothing happens. The culprit: a dead battery. You’re not going anywhere—unless you have one portable battery starter hidden in the trunk. If you’re missing this essential auto tool item, go to Walmart. The retailer has plenty of great deals on auto tools, including a portable tire inflatora massive set of mechanical toolsand even portable pressure washers. Walmart also has an extra $175 off a 4,000 amp starter that is perfect for any car and makes a great gift idea.

The Avapow 4,000A car starter battery is on sale for up to $68, up to 73% off its regular price of $250. This backup battery booster works with any 12-volt battery system—including cars, trucks, boats, ATVs, and more—and Walmart shoppers say it’s “amazing” and has “worked flawlessly,” even in of cold It comes in two colors, black and yellow, although the black color costs $70. No matter which color you choose, this handy device qualifies for free shipping.

Avapow 4,000A Car Jump Starter Battery, from $68 (down from $250) at Walmart

This portable starter works with any 12-volt electrical system and can pump up to 4,000 amps of peak current – that’s enough juice to start all types of engines, even powerful diesel engines up to 10 liters. Jumper cables are included and built-in safety systems make jumping a battery super simple: the device has an indicator and a buzzer to let you know when you’ve connected it correctly. You can also use Avapow as a portable switchboardand comes with two USB 3.0 output ports to charge a phone or tablet on the go. It’s also easy to keep the Avapow running—it can be charged via your car’s cigarette lighter or an included USB-C charging cable. Best of all, it weighs just 3.3 pounds and measures just 5 by 6 by 10 inches, so it’s easy to store and easy to transport when needed.

Walmart shoppers have been delighted with the build quality and performance of the Avapow Jump Starter. “It’s a great alternative to old jumper cables and safer,” said one buyer. “Everyone should have one in their vehicle.” Another buyer liked the “excellent quality” and said it was “very easy to use.”

Related: DeWalt’s 20V Powerstack batteries are more than $180 off, and buyers say they have ‘exceptional power and performance’

“Works great,” said a third buyer. “It will pay for itself in no time.”

A portable starter like this one it’s one of those items that hopefully you won’t need to use often, but when you do, you’ll be so glad you bought one, and at just $68, it’s a lot less than calling a tow truck . Never go a day without one in your vehicle – grab this quality device today while the discount lasts.