I’ve never had a reason to use Noco’s Boost GB40 jump starter that I bought years ago — until today. I knew the $99.95 12-volt battery would come in handy at some point, but it saved me $65 on a parking ticket. It’s not discounted for Amazon’s Big Spring Sale, yet I think it’s easily worth the full cost. It can jump start six-liter gas engines or three-liter diesel engines up to 20 times per charge.
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