How Many Amperes In A 9 Volt Battery. P V I. As you might remember from our article on Ohms law the power P of an electrical device is equal to voltage V multiplied by current I.
See yellow area of NiMH table Battery Capacity 10 divided by charger output charge time 2000 mAh 200 2200 600 mA 366 hours. Using a 9 volt battery and Radio Shack Pen Style MM. As energy E is power P multiplied by time T all we have to do to find the energy stored in a battery is to multiply both sides of the equation by time.
Ampere-hour is a unit of battery capacity while amperes measure electric current.
If You short circuit a 9 volt battery cross the two terminals with a paperclip then the voltage will be 9 volts and the resistance will be in the range of 1 ohms. That means the battery will however reach its max possible amps and cause the battery and the paperclip to get hot and possibly damage the battery. Lithium 9-volt batteries are consumer-replaceable disposable high-energy-density batteries. Nine-volt batteries produce 400 to 500 milliampere-hours at 8 milliamperes.
