Most historians date the start of battery development from the late eighteenth century. However some archaeological finds may push the date back as far as 2,000 years ago. In 1938 Wilhelm Konig made a discovery in Iraq of a 5 inch pottery jar containing a copper cylinder that encased an iron rod. Koniq decided that this was an ancient battery.

The history of batteries and development of devices go hand in hand. When Eveready invented the first miniature batteries in the late 1950’s, most of the world stopped winding watches. Alkaline batteries provided enough power to make way for portable radios, boom boxes and toys that beep and blink. With the introduction of lithium batteries , it opened up a while new world of long-lasting power for high-tech devices from digital cameras to MP3 players and handheld computers.

1798 – Italian physicist Count Alessandro Volta built his first "voltaic pile." The crude battery consisted of a stack of paired copper zinc disks separated from one another by cardboard disks moistens with salt or acid solution.

1836 – John F. Daniell, an English chemist, improved the efficiency of Volta's design by developing a way to avoid the corrosion problems of Volta's batteries.

1868 – French chemist Georges Leclanche designed a "wet" cell, the forerunner of the "dry" cell, or flashlight battery.

1888 – German scientist Dr. Carl Gassner invented the "dry" cell, a cell much like today's carbon-zinc batteries.

1896 – Columbia, a dry cell battery manufactured by National Carbon Company, became the first commercially available battery sold in the U.S. The National Carbon Company later became Eveready Battery Company – known today as Energizer.

1898 – Conrad Hubert, known as the founder of the Eveready Battery Company, invented the electric hand torch, or flashlight – a dry cell battery, bulb and rough brass reflector inside a paper tube.

- Eveready introduced the D size battery for the first handheld flashlight.

1955 – Eveready introduced the first miniature batteries for hearing aids.

1956 – Eveready produced the first 9-volt battery, commonly used in smoke detectors today.

1957 – Eveready introduced the first commercial watch battery.

1958 – Eveready introduced the Eveready® Nickel Cadmium (NiCd) rechargeable battery system.

1959 – Eveready developed the first commercially viable cylindrical alkaline batteries, revolutionizing portable power. You can see the first prototype alkaline cell, hand built by Energizer scientist, the late Lew Urry, at the Smithsonian National Museum of History.

1960 – Eveready produced the first silver oxide system miniature batteries for use in hearing aids and watches.

1989 – Energizer led the industry in environmental initiatives to eliminate added mercury in batteries.

- Energizer introduced the first commercially available AAAA alkaline battery.

991 – World's first zero mercury hearing aid battery commercially available.

1992 – Energizer introduced the world’s first AA lithium battery. Energizer® e²®; Lithium® is the world's longest lasting battery in high-tech devices.

1995- Energizer introduced the first on-battery tester.

1997 – Energizer introduced high energy NiMH rechargeable batteries.

2000 – Energizer debuted Energizer e² Titanium Technology featuring enhanced cell design and titanium technology to deliver exceptional power and dependability.

2001 – Energizer introduced Energizer EZ Change, a new dispenser for hearing aid batteries.

2003 - Energizer introduced the first AAA Lithium battery - Energizer e2 Lithium;

2010 - Energizer re-launches innovative packaging across all household battery and flashlight products; in addition all offline and online Energizer Marketing and Communication collateral are updated to reflect the new brand strategy and design.

- Energizer introduces many new and improved battery and lighting products including the Energizer Inductive Charger and Qi.