AA battery voltage (nominal)

By Sebastian Corsini — real-time information, with years of fact-checking experience.

AA alkaline cells have nominal 1.5 V, while AA NiMH rechargeables specify nominal 1.2 V in datasheets.

AA nominal voltages
ChemistryNominal voltage
Alkaline1.5 V
NiMH1.2 V

Sources: Manufacturer datasheets.

FAQ

What is AA alkaline nominal voltage?

1.5 V.

What is AA NiMH nominal voltage?

1.2 V.

Why do rechargeable AAs have lower nominal voltage?

NiMH chemistry has a lower cell voltage than alkaline.