Ask MO Anything: Jumpstarting A Motorcycle From A Car

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By Evans Brasfield

Dear MOby,

With my state softening the restrictions of the Coronavirus lockdown, I decided to get my bike ready for a weekend spin. But all I got when I turned on my bike and pressed the starter was a click-click. Yeah, I know I should have a smart charger, but I’m cheap. Is it safe to jumpstart my motorcycle from my car?

Powerless in Piedmont,


Dear Sparky,

You’re right that you should have a battery charger. They really aren’t that expensive when you consider how much longer you can make your battery last when using one regularly. You’ve got a spare $20, don’t you? Here’s our handy Battery Charger Buyer’s Guide. It should have what you need for future motorcycle storage.

If you use a smart battery charger, your motorcycle’s battery will last longer, and you’ll never hear the dreaded click-click, like our friend Sparky.

For years, we were told that you should never jump a motorcycle battery from a car battery because they are bigger and pack a high amperage wallop that could damage the delicate moto-battery. Well, in recent years, I began to feel that this was…what’s the technical term…hooey.

The advent and popularity of the compact lithium battery boosters made me suspect as much. After all, we’d have heard by now if these high-amperage batteries were blowing up motorcycles during jumpstarts. Still, I decided to poke around and ask some industry friends about this.

Take an extra 30 seconds to connect your battery to a charger after you ride. The life you save could be your battery’s.

Yuasa, which is the biggest motorcycle battery manufacturer we know of, says on its website: “Motorcycle batteries can be jump started from another motorcycle, car battery, or portable battery jump starter.” Well, that’s good for the heavy, old lead-acid batteries. What about those …read more

Source:: Ask MO Anything: Jumpstarting A Motorcycle From A Car


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