I'm curious. A car or flashlight battery runs down. The car engine won't turn over or the flashlight doesn't come on, etc.
What is happening when we leave the battery for a few hours and the battery then has a new surge of power? What's the physics involved that is recharging the battery from a seemingly dead state to a strong but very short last 'hurrah'? In the car, for example. the alternator isn't running so how is an almost dead battery 'alive' for a few seconds before it dies again?
thanks