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

NOCO claims the Boost Air AX65 can deliver 2,000 amps to a dead battery during a jump start. When I connected the AX65 to our AutoMeter BVA-34 Battery Load Tester, I observed an output of 371 amps.

Each jump starter went through a decathlon of tests to make sure it could inflate tires just as well as it could start vehicles with dead batteries. I tested each product in the garage and in the ...

Editor’s Note: We test and review every product we recommend.Read how MotorTrend tests products here. Don’t let a dead battery suck the juice out of your morning. With a little bit of preparation, you ...

I took careful notes while unboxing each product and got a real-world feel for carrying, charging and stowing them around the shop and in the car. Next came more than 50 hours in the MotorTrend test ...