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Amazon.com : Sony NP-BK1 Type K Rechargeable Li-Ion Battery Pack for Sony Webbie Camcorder, S780 & S750 Digital Cameras - Retail Packaging : Electronics
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Sony Global - Press Release - Announcement of New Lithium Ion Batteries, Realizing Industry's Highest Level of Energy Density - High-power output cylindrical lithium ion battery fit for high-power supply also announced -
Sony' s lithium ion batteries – challenging to reduce environmental footprint Batteries used at power stations and disaster-
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Sony Group Portal - Sony Launches High-power, Long-life Lithium Ion Secondary Battery Using Olivine-type Lithium Iron Ph
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