| 摘要 |
Battery recharging apparatus for smart phones and other mobile devices eliminates the need to carry a separate charger and/or cord. A cradle receiving the portable electronic device includes a plug with at least two prongs configured to plug into a wall outlet supplying AC line voltage. A power supply in the case converts the AC line voltage into a low DC voltage, and a connector, configured to mate with the power input connector, provides the low DC voltage to the portable electronic device. The plug may include pivoting prongs that fold into the case during periods of non-use. Alternatively, a plug may be provided with a retractable cord enabling a user to extend the cord and plug for charging purposes and retract the cord and plug into the case during periods of non-use. The case may further include an auxiliary rechargeable battery. |
