The move could mean a more complicated (and pricey) installation at hospitals, university dorms and even neighborhood gyms, where TVs installed in cardio equipment often plug directly into wall jacks, not to mention the inconvenience you'll be facing at home.

ENGADGET

We think the move could mean a more complicated (and pricey) installation at hospitals, university dorms and even neighborhood gyms, where TVs installed in cardio equipment often plug directly into wall jacks, not to mention the inconvenience you'll be facing at home.

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However, that does not explain why companies often pull the plug on broad campaigns to accelerate innovation, sometimes after only short periods of time.

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People get really in tune with their devices, for example, they know how often they need to plug in and recharge the battery.

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Little did they know that after losing 20, 30, 40 percent or more that they would have a strong emotional reaction to the loss and pull the plug, often near the market bottom.

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For example, how often and for how long owners would plug in to the electrical grid, or a solar supply.

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That kind of performance is unheard of in today's plug-free chargers, which tend to be powered by conventional alkaline or lithium ion batteries and often can only last for one or two charges before needing replacement or recharging on their own.

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