SWITCH DEVICE OF DATA CARD WITH BATTERY AND REALIZATION METHOD FOR SAVING POWER THEREOF

The present invention discloses a switch device of a data card with a battery comprising a connection detecting module and a battery connection enable switch-off module inside an original battery power supply module. The present invention further discloses a method for saving power of a data card with a battery. Using the switch device of the data card and corresponding method for saving power of the data card, a switch button of the data card can be omitted and static power consumption of the battery can be avoided, thereby saving electric quantity of the battery.