How many milliamperes are in a 9v battery? - Quora

What is actually inside a 9V battery? - Quora

Can an LED be connected directly to a 9V battery? - Quora

How many mAh is a 9V alkaline battery? - Quora

Will my cat power up if he licks the 9V battery end for one second? - Quora

Are 6 AA batteries the same as 1 9V battery? - Quora

What is actually inside a 9V battery? - Quora

I'm powering a 12V 0.16A fan with a 9V battery. Will it drain the battery at more, less, or exactly 0.16A? - Quora

How long can an Arduino run on a 9V battery? - Quora

Finally! 9V battery max current tested and compared - Motors, Mechanics, Power and CNC - Arduino Forum