Dealing with a dead car battery is a rite of passage for any driver. If you’ve had a car long enough, you’ll probably start the engine at some point and, well, absolutely nothing will happen. In most cases, a dead battery is a quick and easy problem to fix. These days, it’s even easier than ever thanks to portable jump starters like this one from Nexpow. With a portable jump starter, you don’t have to pull over a second vehicle to borrow some charge, as it stores power in a convenient little box that fits in your trunk. Jump starters come in all shapes, sizes, and strengths, and Nexpow has tons of options. Today, however, we’re offering this fantastic deal with 46% off (and an additional $10 off digital coupon) on a powerful 4000-amp offering from the brand, bringing it down to one of its lowest prices ever. If you want to skip straight to the product list, you can do so here or learn more below.

$59.99 at Amazon

The Nexpow G17 S40 jump starter is the most powerful in Nexpow’s G17 lineup at the time of this post. Before the release of this product, you could only hope for 2000A peak current from a G17 model from the brand. While that’s absolutely more than enough for most applications, if you’re the type of person who always wants the best of the best, you should consider this new model. Not only does this model offer double the peak current (4000A) of the previous model, with this discount it’s only $10 more expensive. Thanks to the power increase, it can start all gasoline and diesel engines up to 10L, including cars, trucks, motorcycles, snowmobiles, lawn mowers, and even yachts. It’s even designed for reliable use in extreme temperatures (-4°F to 140°F).

It’s built with a fireproof casing, has heavy-duty cables, and includes “10 built-in protection technologies” so you don’t have to worry about accidental misuse. From a firsthand perspective, “You can confidently and safely plug it into any 12-volt car battery.” In addition to its primary job of jump-starting, the G17 S40 also serves as a portable power bank for your USB devices. It has USB, USB 3.0, and USB-C outputs. The jump starter takes just 1.5 hours to charge from 0% to 100% when plugged into a 60W wall charger or USB-C adapter and fully charged. The product listing doesn’t say how many jump starts you’ll get on a single charge, but Nexpow’s 4000A Q11 model promises up to 60 jump starts on one charge, which is probably a good comparison. If you’re wondering what the difference is, the Q11 model is a bit larger, heavier, and older, but it’s another great potential option that’s also currently on sale.

Summary technical data

• Starts all petrol and diesel engines up to 10L

• Also serves as a power bank for USB devices

• Integrated safety technologies and LED lights with emergency settings

• Includes USB-C charging cable, storage box, manual and free technical support

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