Car Accessories & Parts

Curated picks

Jump Starters

Portable battery packs that start a dead car without another vehicle

A portable jump starter is a battery pack with clamps that can start a car with a dead battery, no second vehicle needed. Many double as power banks with USB ports and built-in lights, making them handy for emergencies. The right size depends on your engine type, since larger engines need more starting power.

When choosing, match the peak amps and capacity to your engine, and check the safety features that prevent sparks and reverse polarity. We curate top-rated jump starters on Amazon so you can compare units sized for cars, trucks, or larger engines. A unit that holds charge over months is worth keeping in the trunk.

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What to look for

  • Peak amps matched to your engine
  • Reverse-polarity and spark protection
  • USB ports and built-in light
  • Holds charge in storage

FAQ

What size jump starter do I need?
Smaller gas engines start with lower peak amps, while larger gas and diesel engines need more. Check the unit's engine size guidance against your vehicle before buying.
Can a jump starter charge my phone?
Most have USB ports and work as a power bank for phones and other devices. Capacity varies, so check the listing if you want to charge larger items.
How do I use a jump starter safely?
Connect the clamps to the correct terminals following the included instructions, and look for built-in protection against reverse polarity. Keep the unit charged so it is ready when needed.