• Sanyo Eneloop rechargeable batteries with no energy leakage

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    Sanyo today released new, upgraded versions of the “eneloop” rechargeable AA and AAA batteries, with a promise of even more recharge times. Their latest batteries, available in AA or AAA sizes, can be recharged up to 1,500 times. That’s 500 times more than the original eneloop batteries, which launched in November 2005. Sanyo’s claim of being number one is compared to other nickel-metal hydride batteries as of today. The eneloop (named for the concept of “looping energy”) is also well-known for its ability to hold a charge when not in use. These batteries incorporate some aspects of dry cell batteries, like the throw-away Alkaline, allowing them to hold 75 percent of their charge after three years. Above all, the batteries come pre-charged through solar power at Sanyo’s manufacturing plants.


    The technologies involved include the development of a “highly-durable super-lattice alloy,” an advanced manufacturing method consisting of a new additive being added to the negative electrode material, and the continued use of a thick, outer case. It has been however noted that eneloops have a lower capacity than standard NiMH batteries. So while you may be able to charge the eneloops more times, you may have to charge them more frequently, especially for extended uses. If your device spends a lot of time on the shelf, however, the difference may be negligible.
    Via [akihabaranews]

    Posted in Topics:Recycle, Tags: , on October 7, 2009