Q:
How many amps are in a 9-volt battery?
A:
Quick Answer
Nine-volt batteries produce 400 to 500 milliampere-hours at 8 milliamperes. Ampere-hour is a unit of battery capacity, while amperes measure electric current. An ampere-hour measures the amount of electric current a battery can supply in one hour before exhausting its storage of energy.
Continue Reading
Credit:
Justin Sullivan
Getty Images News
Getty Images
Full Answer
While a 9-volt battery should last one hour if supplying 400 to 500 milliamperes (mAh), other factors, such as heat produced and time elapsed, may contribute to different results. Milliampere-hour rates are specified given a current rate or a given time at which batteries have been tested. Assume eight hours if no time is specified.
Learn more about ElectricitySources:
Related Questions
-
Q:
How many amps does a taser have?
A: Tasers send a pulse with 50,000 volts and a few milliamps. The high voltage ensures that the pulse reaches its target, and the low amperage keeps the Taser... Full Answer >Filed Under: -
Q:
How many amps does 1500 watts use?
A: Using Ohm's Law, 1500 watts of energy uses 12.5 amps. Ohm's Law defines the relationship between amps, watts and resistance. In the United States, electric... Full Answer >Filed Under: -
Q:
What are volts and amps and how are they used to calculate watts?
A: Volts measure electric potential difference, and they represent the size of the force sending an electron through a circuit. Amps, or amperes, measure the ... Full Answer >Filed Under: -
Q:
What formula shows relationship between volts, amps and watts?
A: The Watts formula, P=V x I, shows the relationship between volts, amps and watts. The "P" signifies power in watts, "V" denotes voltage in volts and "I" st... Full Answer >Filed Under:
