1. A method for monitoring an energy source in a portable device for physiological measurement, which has at least a battery connected to a processor and memory, the method comprising the following steps: turning on the device； measuring the battery power using a microprocessor； determining whether the battery power level exceeds the first threshold value； if the power level is lower than or equal to the first threshold value, then the flag of the discharged battery is set to true, otherwise start of the device verification process； after the start of the verification process, the battery is evaluated to determine whether the battery power level exceeds the second threshold value and whether the low battery flag is true； if the evaluation step is positive, then the time and date of this assessment are recorded in the memory, and the low battery flag is set to false, the status of the battery in the device is announced； if the evaluation step is negative, the analyte is measured； the battery power level is checked compared with a first threshold value, if the check shows that the power level is above a first threshold value, the result of the physiological measurement is declared, otherwise step zakanchivaetsya.2 verification. The method of claim 1, wherein the physiological measurement comprises measuring an analyte amount in a biosensor module. The method of claim 1, wherein the battery includes two AA size alkaline batteries, wherein the first threshold value is 2.5 V for the battery. The method of claim 1, wherein the first threshold value is about 82% o1. Способ мониторинга источника энергии в портативном устройстве для физиологического измерения, которое имеет по меньшей мере батарею, соединенную с процессором и памятью, причем способ содержит следующие этапы:включение устройства；измерение мощности батареи при помощи микропроцессора；определение того, превышает ли уровень мощности батареи первое пороговое значение；если уровень мощности ниже или равен первому пор
