Apparatus and method for measuring power usage in a wireless mobile station

摘要

A power monitoring device for use in an electronic device that operates in a low power mode from a removable battery module. The power monitoring device comprises a module that attaches to the electronic device in place of the battery module. The module has first battery contacts for interfacing with second battery contacts disposed in the electronic device. Attachment of the module causes the electronic device to operate in the low power mode. The power monitoring devices also comprises power supply circuitry for providing a supply voltage substantially similar to a voltage level provided by the removable battery module, and power measurement circuitry for measuring a power level supplied by the power supply circuitry.