These 'lifesaver' portable jump starters are up to 45 percent off at Amazon—but only 'til midnight

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It's easy to take for granted your car's ability to start up when you turn the key — until one day, it doesn't. Then, you're left with two options: Try to get a friend to come over and give you a jump, or call a mechanic for help. Both can cost you time and money, two things no one has available these days.

Turns out, there's another solution. You can invest in a portable car jump starter to keep around for the just-in-case. And, just for today, Amazon has slashed prices on top-rated Nexpow portable jump starters. Right now, you can save up to 45 percent off these life-savers. And, it's worth pointing out, they make excellent Father's Day gifts. Check these out.

Nexpow Car Battery Starter, 1500A Peak

The Nexpow Car Battery Starter, 1500A Peak can easily start a 12V vehicle up to 30 times, along with trucks, motorcycles, snowmobiles, ATVs, lawn mowers, and boats in just a few minutes. With 21800mAh capacity and two USB output ports, this device can fully charge your laptop, phone, tablet, and other devices quickly. The kit comes with an emergency jump starter, portable charger, LED flashlight, S.O.S lighting signal for help and dual USB quick charge. "My battery was completely dead. Not even a click. This is super easy to follow instructions and I didn’t even break a nail lol My old Jeepster started up without a problem," a fan wrote in the reviews.

Shop it: Nexpow Car Battery Starter, 1500A Peak, $49 (was $90), amazon.com

Nexpow Car Battery Starter, 1000A Peak

The Nexpow Car Battery Starter, 1000A Peak can easily give cars, trucks, SUVs, motorcycles, ATVs and boats a jump, along with firing up electronics. The quick-charge USB port provides juice to phones, tablets, Kindles or digital cameras on the go. The kit also features an LED work light with three modes: flash light, strobe light and SOS. "I had to do it on my own and I was a little nervous," a satisfied reviewer wrote. "The instructions made it simple. There’s really nothing to it. I clipped on the clamps, got behind the wheel and my car FIRED RIGHT UP! No hesitating, no ticking, it just started.... I‘m going to get one for my teenage driver. It’s a lifesaver!"

Shop it: Nexpow Car Battery Starter, 1000A Peak, $35 (was $45), amazon.com

Nexpow 2500A Car Battery Starter

There's a lot to love about the Nexpow 2500A Car Battery Starter, like the fact that it can hold a charge for more than three months! It's able to easily start cars, motorcycles, watercraft, ATVs, lawnmowers, yachts, boat, pickups and snowmobiles. Once you need to recharge it, it'll be good to go again within just a few hours. This starter comes equipped with super bright LED light that works as an emergency flashlight with four modes: spotlight, strobe, SOS and a red and blue warning. It also features a quick-charge port that charges devices at 1.8 times the speed of a standard port. A five-star fan called this an "excellent buy," writing, "Within 30 seconds, I put the key in the ignition and it turned on. I removed the clamps and turned off the jump starter and removed the clamps. It’s so easy to use. As a woman who doesn’t know much about car issues, I used it and it worked."

Shop it: Nexpow 2500A Car Battery Starter, $56 (was $100), amazon.com

The reviews quoted above reflect the most recent versions at the time of publication.

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