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Magnetic induction could soon spell the end of tangled cables and a frustrating hunt for the gadget's charger.
Israeli company Powermat uses RFID tags to identify what is being laid down to charge. The RFID tags are held in a case made to fit around popular gadgets such as iPods, laptops, and mobile phones.
Sensing systems allow devices with very different voltages to be charged at the same time.
The technology can also be used to power household objects such as flat screen TVs or kitchen appliances.
The first products fitted with the eCoupled technology should appear by late 2009