Panasonic boasts of longest lasting AA battery

By Chris Nicholls

TOKYO: Panasonic has unveiled what it claims is the world’s longest lasting AA battery, the Evolta.

The claims were certified by the Guinness Book of Records after a series of standardised tests.

Panasonic also claimed the batteries will have the world’s longest lifespan – up to ten years. Current batteries from rival manufacturers last for up to seven years at the most, according to Panasonic.

The battery’s name is a combination of ‘Evolution’ and ‘Voltage’.

The company increased the battery’s capacity through a number of methods, including reducing the size of the battery’s connectors, allowing more charge storage material. Much of the new battery’s long-life comes new materials, such as development of the manganese dioxide used in the firm’s current batteries, and the addition of oxy titanium hydroxide to help reduce the unresponsive surface area of the manganese dioxide.

Matsushita (Panasonic’s parent company) expects to produce 20 million of the new batteries a month. They will go on sale in Japan from the end of April.

According to a release on Matsushita’s (Panasonic’s parent company) website, the batteries will ship worldwide, but Panasonic’s Australian office was unable to comment on a possible Australian release.


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