how many hours would a AA battery last with someone pulling 180mA@5V
The capacity of an AA battery typically ranges from 1800mAh to 3000mAh, depending on the brand and type.

To calculate how many hours a AA battery would last with someone pulling 180mA@5V, we need to convert the power to watts by multiplying current (I) by voltage (V):

P = I * V = 0.18A * 5V = 0.9W

Then, we can estimate the battery life by dividing the battery capacity by the power consumption:

t = C / P

If we use a 2000mAh battery, for example, the estimated battery life would be:

t = 2000mAh / 0.9W = 2222.22 hours

However, this is just an estimate, and the actual battery life can vary depending on factors such as temperature, discharge rate, and the age of the battery.