Eneloop Stick Booster supplies emergency power to your portable devices

Gallery: Eneloop Stick Booster
[Via Akihabara]
rechargeable posts





While the original Sputnik burnt out after only 3 months in orbit, here's an homage that promises to be rather more resilient. IDEA, Japan's answer to you know who, is offering a 30cm tall (11.8-inches) self-sufficient ambient light that pretty much does its own thing. Integrated sensors detect when the light should be on, while inconveniences like power cords and on/off switches are completely done away with. The light's batteries are recharged by the sun at a rate of 2 to 5 hours sunlight for 8 hours operation, while its waterproof design means it can be dumped outside to collect rays during the day and even provide garden lighting at night. It's quirky, to be sure, but the obvious design cues taken from the Russian satellite should make true geeks smile with glee. You can find a gallery of the various color choices courtesy of Engadget Japanese below, and if you're passing by the land of the rising sun later this month you can snap up your very own solar light ball for ¥1575 ($16).
The last time we heard of lithium titanate battery technology was when learning about the £120,000 Lightning GT, and while we've no way to confirm, we're definitely hoping that the latest development from Toshiba ensures that we're talking about it far more frequently than once per year. According to a report over at Nikkei's Tech-On, said outfit has crafted a cell of a Li-ion secondary battery (aimed at electric vehicles, mainly) that sports an energy density as high as 100Wh/kg. Needless to say, the invention relies on lithium titanate for its negative electrode, and considering that Tosh is currently producing a 4.2Ah cell with an energy density of around 67Wh/kg for electric bicycles, it's easy to see what kind of improvement we're staring at. Now, if only this stuff could be applied to AA cells, our power-gulping camera flash would be forever grateful...








