The highest-rated Harbor Freight battery chargers come from Cen-Tech and Viking, with a 4-amp Viking charger topping the list ...

Forbes contributors publish independent expert analyses and insights. Scott Kramer covers golf and luxury technology. Someone recently showed me a portable, self-functioning car battery charger, while ...

A jump start uses a working battery to supply enough current for the starter motor, then lets the alternator recharge the ...

Portable car battery jump starters can be essential in case of a battery emergency. If your car refuses to start from a weak or dead battery, these compact devices can jump-start your car wherever you ...