Any electronic device is only as good as the battery inside of it. While processor and storage and display and graphics technologies continue to surge forward by leaps and bounds, we're still waiting for the great leap forward in battery technology. That may come from Osaka-based Eamex (via Engadget), who have just discovered how to make a 20-year, 10,000 charge battery.
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Batteries age through constant charging and recharging, which damages the negative electrode. Eamex has developed a way to stabilize that electrode via a tin-coated resin. While this innovation won't improve battery life, it will drastically change battery life-span. It will also remove (or reduce) the need to fully drain your battery before recharging it in order to save capacity.