According to AutoWeek, Subaru parent Fuji Heavy Industries will market a new manganese lithium-ion battery hybrid battery with an estimated life of 15 years or 150,000 miles, in contrast to eight years or 100,000 for that of the Toyota Prius. Still, to make the venture profitable Fuji needs to get the batts into more cars than merely Subarus, but despite a year of trying to sell several US and European automakers on the battery, not one has yet signed a deal, according to AutoWeek. Interestingly, earlier this year, Green Car Congress reported on a story in a Japanese newspaper that indicated Subaru had signed a deal with Toyota. In that agreement, Toyota would provide Subaru its hybrid-drive systems for its US line, in exchange for Fuji's "advanced" lithium-ion batteries. Hmm.