Rick's Free Auto Repair Advice

Posts Tagged: How to buy a jumper pack

How to buy a jumper pack

How to buy a jumper pack Every big box and auto parts store sells “jumper packs.” But many emergency and portable power packs masquerade as jumper packs. They may start a dead car, but only if the battery is partially discharged. So you need to know how to buy a jumper pack. Jumper pack peak amps rating is irrelevant There is NO industry standard test to determine peak amps rating. In fact, it’s a meaningless term. So a pack puts out 900 peak amps? Well, for how long? A millisecond? … Read More


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