Why aren’t car batteries smaller?

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I’ve been shopping around for an emergency jump starter to carry around in the car. I’ve found jump packs that are roughly a little larger than a cell phone, and produce 1000 amps or more. What is keeping them from being a main car battery?

In: Engineering

12 Answers

Anonymous 0 Comments

Capacity. Emergency starters need to start your car once. Car batteries can’t recharge enough on shorter drives so they slowly lose charge.

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