Palo Alto (CA) – Hewlett-Packard (HP) will begin offering a notebook battery that promises to recharge much faster than traditional batteries and, more importantly, maintains its capacity over three years. Provided by Boston Power, the new “green” battery will become available as an option in 2009, the battery manufacturer said.

HP will be selling Boston Power’s “Sonata” batteries as the HP will offer the batteries as the "Enviro” Series, and they have a good chance to become a popular accessory, if the technology can keep its promise.

Other than traditional lithium-ion batteries, which typical give up capacity and over their life, the Sonatas will not, at least not for three years, the manufacturer claims. Boston Power is confident enough about its technology to include a 3-year warranty with its batteries – which is the longest notebook battery warranty we are aware of.

The fact that users will not have to replace their battery of the lifetime of a notebook means that the Sonata device “is good for the environment,” Boston Power said. The company also claims that the batteries can be recharged to 80% of their capacity in just 30 minutes. Additionally, the devices use less reactive chemicals and apply multiple redundant protective controls.

There was no information how much capacity the batteries for HP will offer and how expensive the devices will be.

Mac users can purchase Sonata batteries already today through accessory company Quickertek, which has been selling an external battery based on this technology for the Macbook and Macbook Pro for some time now. Quickertek claims that the external battery provides about eight to twelve hours of extra battery life for Apple notebooks.