American based company Boston-Power has announced the availability of the Sonata Li-ion battery. The new Sonata batteries are available from HP and are currently being sold as accessories for 18 existing notebooks covers about 70% of HP's notebook portfolio.

The Sonata batteries cost $149.99 and come with a three year warranty, backed by HP, who is the first notebook manufacturer to offer such a warranty. The new batteries also hold the Nordic Ecolabel certification.

HP will begin offering the batteries as an option on newly purchased notebooks sometime in the near future. The batteries can be purchased on HP's website here and the full press release is available for your viewing as well.

"From the beginning, our goal has been to help notebook computer users benefit from optimal mobility with dependable, high-performance, environmentally sustainable batteries," said Boston-Power Founder and CEO Dr. Christina Lampe-Onnerud. "HP's endorsement of Sonata is a great step forward in popularizing this battery technology."

"HP delivers customers innovative products that respect our planet," said Jonathan Kaye, director of consumer notebooks marketing at HP. "The Enviro Series program gives PC users longer lasting batteries that improve their computing experience while reducing the number of batteries that need to be recycled. That's a win for everyone."