Are AA batteries rated the same mAh?

AA batteries can have different mAh (milliampere-hour) ratings depending on their chemistry and brand. For example, alkaline AA batteries typically have a capacity of around 1800 to 2500 mAh, while rechargeable nickel-metal hydride (NiMH) AA batteries usually range from 1800 to 3000 mAh. Therefore, while they share the same physical size and designation, their capacity can vary significantly. Always check the specifications for the specific battery type you are using.