PORTABLE TERMINAL HAVING AN EXTERNAL BATTERY

摘要

PURPOSE: A portable terminal which includes an off-board battery in order to easily control off-board is provided to supply power of the adaptor on an internal battery of the portable terminal through an external battery. CONSTITUTION: A controller controls the charging operation of off-board battery. A first interface(171) is connected to the built-in battery. The first interface transfers the power provided from the built-in battery to the controller and the portable terminal. A second interface(172) is connected to the off-board battery. The second interface transfers the power provided from the off-board battery to the controller.