They’re everywhere today, but lithium-ion jump starters only first appeared in 2013. Now there are thousands of them ( ...

For example, a small sedan doesn’t need much of a boost to get its battery going again ... This powerful, professional-grade Schumacher jump starter boasts an amp rating of 4,400.

Jump starters typically have the same voltage as most car batteries: 12. The range of amps is much wider, though, to fit the gulf of requirements among all types of cars. For example, a small sedan ...