# Battery Ah, Wh and usable energy
# Scope: Nominal battery energy from voltage and ampere-hour rating.
# Status: illustrative worked example; engineering review pending.
# Inputs are example values. Checks are editable example requirements, not standards.

voltage = 24 V
capacity = 10 Ah
usable = 0.8

nominal := voltage*capacity [Wh]
available := nominal*usable [Wh]

check usable energy target: available >= 150 Wh

scenario alternative: voltage = 19.2 V