When: February 18th
Where: United States
There is probably more than one device in your home that runs on batteries and today is a great day to check all of them and replace as necessary. Some older safety smoke detectors are still powered by old fashioned batteries, and to ensure proper safety for your household, these need to be checked and replaced periodically.
It has been estimated that a battery bank designed to power the average American household for 3 days would need to supply 90 kilowatt-hours of energy.
In todays society there is more and more people that desire to live sustainably off the electric power grid. In order to live off the grid, many devices that most people are used to and have to power a traditional household are best powered by batteries. There is numerous ways in to re charge or provide the energy for batteries, but the most common is by the sun or solar power, followed by wind and water sources. The word "battery" was first used by one of the nations founding fathers when Benjamin Franklin, used the term to describe a set of linked capacitors he used for his experiments with electricity. Before the use of electric generators many things were powered by lead acid type batteries until around 1900 when a more robust type battery was invented called the nickel-cadium battery which was the first to use an alkaline electrolyte and also had significantly better energy density than lead-acid batteries, but cost a lot more to produce. Most technology and advances in batteries in the modern day revolve around the Lithium and lithium-ion type batteries which maintain very low energy density levels.