Portable jump starters can also do more than crank your engine. Best Portable Jump StartersBest Overall :: Best Value:Most Waterproof:Most Heavy Duty:Most Charging Ports:How We SelectedI’ve been writing about cars, car accessories, and car electronics for more than 30 years and have owned almost a dozen cars over that time. I carry a set of jumper cables in every vehicle I own, and over the last decade or so, I’ve added portable jump starters to my collection of vehicle necessities. I narrowed down the products I ultimately tested by price and capability with the intention of including portable jump starters that fit a wide array of vehicles and budgets. I also observed and noted how quickly these portable jump starters recharged, how many additional charge ports they offered, and any special features.