To calculate a permissible value, use the online calculator, which displays the estimated normal leakage value at solid state depending on the type of consumers you have. Check (select from the list) the necessary consumers, which have caused the discharge (or there is a need to calculate the battery operating time).
Therefore the leakage current of the Lithium coin battery should be acquired in μA level to precisely estimate the state of charge (SOC) of the battery for utmost using harvested energy in indoor applications. The leakage current of a battery can be measured by the battery test equipment.
The leakage current of a battery can be measured by the battery test equipment. However, existing battery simulators are not accurate for small capacity Lithium coin batteries (such as 10 μA measurement accuracy in the dynamic model battery simulator of Keithley 2281S).
To calculate the discharge time, you need to: Indicate the nominal value of the battery in the “Battery capacity” field. Specify both the average leakage — 25-35 mA, and the value checked with a multimeter in the “ Current Leakage ” field.
The calculation formula is as follows: T=Capacity (of the battery) / Consumer current Our online calculator allows calculating the time during which the battery will operate when the source of current consumption is turned on, when you have accidentally forgotten to switch it off or have intentionally left to operate.
A precise leakage current measurement procedure has been proposed as a successive approximation search algorithm , where the measurement period and the number of iteration are pre-determined constants. The charge current is adjusted [1 − sign × (½) n] times for each search procedure.