Both the CR2016 and CR2032 are rated as having a battery voltage of 3V. The CR2016 being half the thickness of a CR2032, also stored less energy.
Stacking 2 CR2016 together does not increased the amount of energy, it only double the battery voltage to 6V.
Hence using 2 CR2016, would produce a brighter light with no increase in the runitme. Using 1 CR2032, you will get a dimmer light but longer runtime.
Hope it help.
In other words if the resistance is constant and the voltage is lowered then the amperage is also lowered.
Jeanette Isabelle
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