The headline is something like "30 year battery for your laptop" whichi is nonsense, because nobody would use a 30-year old laptop. But the underlying technology sounds very interesting...
http://www.nextenergynews.com/news1/next-energy-news-betavoltaic-10.1.html
The question is, what kind of mAh rating does something like this have? If you don't need the longevity of 30 years, can you make a 5-year single-charge battery instead that's a whole lot smaller? Or do you need the size to get the amperage? Could it be applied to bigger (ie, more power hungry) devices such as full computers, cars or even UPS systems?
http://www.nextenergynews.com/news1/next-energy-news-betavoltaic-10.1.html
The question is, what kind of mAh rating does something like this have? If you don't need the longevity of 30 years, can you make a 5-year single-charge battery instead that's a whole lot smaller? Or do you need the size to get the amperage? Could it be applied to bigger (ie, more power hungry) devices such as full computers, cars or even UPS systems?