Men’s Journal aims to feature only the best products and services. If you buy something via one of our links, we may earn a commission. It always happens at the most inconvenient time: Your car’s battery goes dead, turning your vehicle into a lifeless hunk of metal. While a dead battery can derail your day, it doesn’t have to. With a portable jump starter in your trunk, you can quickly jump a dead battery and be on your way. We’ve seen a few great deals on jump...
