“How long does the internal charge last / What is the shelf life of a charge that is strong enough to jump start a car? Can I charge the JumPack Battery Power Adapter and store in my glove box and still have a charge to jump start my car months later?”
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1-7 of 7 Answers
On the box it says that is will store up to three months without charging it.
Sorry, there was a problem. Please try again later.It is suggested that charge be topped off at around 3 months. I've had mine for 3 months. I used first day and the next use was yesterday 3 months later and it still cranked a V8 SUV. I did do a top off after the latest charge although it showed plenty of power left. I would at least do 2 month top off during hash cold weather if storing in car. And YES it will start a car if battery is the issue.That's what I purchased it for.
Sorry, there was a problem. Please try again later.Cobra lists that it will maintain an 80-90% charge after one year.
Sorry, there was a problem. Please try again later.Yes. It's worked for me. However if you live in an area that gets very cold -- snowy etc. I'd check the power more often.
Sorry, there was a problem. Please try again later.Not sure on that, but can say I've gone 3 months with mine and it still jumped the car of a friend of my son
Sorry, there was a problem. Please try again later.One year
Sorry, there was a problem. Please try again later.Will not start a car. Maybe a motorcycle.
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