NOCO Boost GB40 1000A Lithium Jump Starter

Jump a dead battery up to 20 times per charge, gas up to 6L or diesel 3L. Doubles as a power bank and flashlight.

The NOCO GB40 replaces jumper cables and the stranger you'd need to use them. A 1,000-amp lithium pack jumps gas engines up to 6 liters and diesels up to 3 liters, up to 20 times on one charge, and holds that charge for months. Spark-proof clamps and reverse-polarity protection mean you can't hurt anything by connecting it wrong. It also charges phones and has a flashlight. Over 129,000 ratings.

Why it's on the list: 4.6-star average across 129,170 ratings, and it sits in Amazon's best-seller list for Automotive. We only list products rated 4.5 or higher with at least 1,000 ratings.

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• The three-item car emergency kit: jump starter, code reader, headlight kit

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