Question: are all aa batteries 1.2v?
Answer: The proper voltage for AA/AAA alkaline battery is 1.5V. The proper voltage for AA/AAA NiCd/NiMh rechargeable battery is 1.25 Volts. ... The NiMH cells will be providing 1.2 volts throughout it's cycle use while alkaline cells go from 1.6v to 0.9 volts.