
Compact consumer electronic devices gadgets such as watches, alarm clocks, radios, toys, weather stations and other similar devices are available in almost every home. Regularly and everywhere, home owners have to ensure their power supply batteries with a nominal voltage of 1.5 V (“AA” AA and “mizinchikov”, “AAA”) or of the disc type CR, AG, etc. – with a voltage from 1.5 to 3 V. considering the fact that the power supply elements (batteries) are increasing in price (like everything else), the author offers a more rational solution for the cost-conscious owners, namely, to apply to the food in the house and (or) a favorite with owners of devices powered by household electrical outlet using the AC adapter. Thus, the cost for the family budget significantly reduced, since do not have to constantly buy batteries.
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