Yes, you should have a portable jump starter in your car. A dead battery can strand you anywhere, anytime — even in a parking lot with no one around to help. A compact lithium jump starter fits in your glove box, works without another vehicle, and can get you back on the road in under…

Look for correct engine-size support, strong safety protections, reliable clamps, lithium or lead-acid chemistry, useful charging ports, and clear warranty coverage. The best car jump starter matches your vehicle, climate, and comfort level, not just the largest peak amp number on the box.   A dead battery can turn a normal errand into a stressful…

If jump starting your car is not working, the most likely causes are weak cable contact, dirty battery terminals, a battery that is too discharged or damaged, a weak donor vehicle, a bad starter, a failed alternator, or a blown fuse. Check the connections first, wait a few minutes, then diagnose the battery, starter, and…

A car jump starter is a portable, self-contained battery pack that delivers a high-amp burst of power to a dead or discharged car battery — letting you start your vehicle without needing another car or a second person. Modern lithium-ion jump starters are compact enough to fit in a glove box, can jump start most…