Battery levels are determined by voltage ... Both types deliver the necessary voltage range for AA-compatible devices, typically between 1.2V and 1.5V, depending on the chemistry.
[Ray’s] breadboard power supply lets you drain the last traces of power from ‘dead’ AA batteries. Electronics that are powered off of disposable alkaline batteries have a cutoff voltage that ...
Both types of battery will provide the correct voltage range for those devices. AA batteries are usually in the 1.2V to 1.5V ...