Foreword
Scope
Normative references
Terms and definitions
General
Parameters
Types of battery life
Operating mode
Environmental conditions
Current consumption of a watch
Mean current consumed (I)
Capacity of the battery (C)
Self-discharge currents (I, I)
Self-discharge current in storage (I)
Self-discharge current in use (I)
Current consumption of additional functions (I)
Calculation of battery life
Practical battery life (AP): method I
Theoretical battery life (AT)
Labelling
Self-discharge currents (normative)
General
Values for ΔC
Values for K
Daily use of the additional functions; agreed values
Practical battery life (AP) (normative)
Intrinsic lifetime of a battery
Statistical determination of the practical battery life (AP)
Practical battery life (AP) Method I
Practical battery life (AP) Method II