Fast charging batteries

Battery technology has been a big constraint on portable devices for many years, and though there have been improvements, they are all incremental, with serious portable power still weighing in heavily.  I used to use a tablet laptop which would last all day on battery, but only by having an add-on battery as well, and it did make it quite a weight to lug about.

Toshiba have come up with a production version of a much better battery – see here.  Based on Lithium Ion technology, but capable of 90% recharge in 5 minutes.  That feels short enough to make a major difference to portable devices, as well as to Electric Vehicles.  For example, how about a recharge whilst you shop?

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