Credit: Genius/ The Gadgeteer
"Battery free"? Well, kinda ... it uses a capacitor to achieve the same thing.
So, what's the point? It charges in 3 minutes (sic). Fast charge times are typical of capacitors.
Other characteristics of capacitors are multiple charge cycles (100,000 typical) :) & low energy density compared to lithium ion :(
Frequent recharges are likely to be required, making this a perfect candidate for wireless charging. Unfortunately the design doesn't provide for it.
http://the-gadgeteer.com/2013/06/23/ditch-batteries-forever-with-the-nx-eco-battery-free-wireless-notebook-mouse-by-genius/ / mouse pointing device electricity computer mouse /
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