Wind-up energy has been around for decades, with its early uses being largely confined to children’s playthings, watches and curios. In more recent times, however, wind-up technology has advanced in leaps and bounds, making it possible for many more devices and gizmos to be powered without batteries by kinetic energy alone.
From Trevor Baylis’ famous wind-up radio to torches, mobile phone chargers and even MP3 players, the range of batteryless wind-up devices on the market is steadily growing as people realise just how energy-efficient they can be.
While they are unlikely to sound the death knell of the humble battery anytime soon, they are an excellent alternative for anyone who wants to avoid the waste – and the hassle – of repeated battery use.
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