Field demand and available supply are separate assessmentsField demand and available supply are separate assessmentsIllustrative cycleAt one 3.3 V boundary55 s × 0.2 mA11 mA·s5 s × 40 mA200 mA·sAverage over 60 s≈3.517 mA24 h repeated profile84.4 mAh; ≈0.2785 WhNo battery-life, solar-yield or temperature model is included.