Why would a car battery go out if the car hasn’t been used for a long time?
In: Engineering
To put it plainly, lead-acid batteries like your car battery, work by acid wanting to react with plates of metal. And for that reaction to happen, we make the little particles that want to be transfered run through wires to power stuff for us on the way through. If we take that option away by turning the circuit off, the reaction still wants to happen, and it will slowly eat away at itself overtime until it no longer needs to run through the wire.
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