How Many Amps In 9v Battery. In the most basic terms these batteries can supply about 500 milliamps for one hour before being dead. A standard 9V battery has about 400-600 mAh capacity.
A lithium battery has 36A max and carbon-zinc 5A max. It is literally a pile of 15 volt cells stacked together to make a 9 volt package. 456 grams 16 oz Typical Volume.
Lets say its 264 Wh.
Input these numbers into their respective fields of the battery amp hour calculator. A 9 volt battery is only going to supply about 50 milli-amps of current. Q E V 264 12 22 Ah. The capacity rating of a battery tells you how long you can pull a given current from the battery.
