Most portable jump starters, like the Jump-N-Carry series from Clore Automotive are sized by the amount of amps they produce. Using them as an example, the JNC305 is a 300-amp (1000 peak amp) starter.

GOOLOO’s GP4000 Jump Starter can revive a dead car battery and is on sale for $85 at Amazon.

A jump starter can turn a dead battery situation from frustrating to fixed in minutes, and it just so happens this excellent model from GOOLOO is currently 50% off.

We tested six portable jump starters with built-in air compressors. Two products clearly stand above the rest.