The normal lifespan of a laptop battery is 8-10 hours, depending on what you are doing.

A cordless hand vac has a battery lifespan of around 5 hours. After this amount of time, the power of the device will slowly decay and will stop eventually.

How long the battery lasts depends on which kind you got. The average lifespan of such a battery is two years.

Most last 4-6 years

Most car batteries have an average lifespan of three to five years. Depending on how it is used, you can shorten the lifespan of a car battery if you aren't careful or increase its lifespan through care and use. Summer time heat can affect your battery worse than the winter cold. Most batteries fail in the month of July than in January, because of the heat.