# How many watts is in a double A battery?

Category:
science
chemistry

AAA batteries can be measured using voltage for the most part. They are rated at

**1.5**volts each and depending on the battery will depend on how much wattage is produced from those volts. It seems on average that AAA batteries have a measurement of a bit less than**2 watts**per battery.

Similarly one may ask, how many watts is a AA battery?

A typical AA battery contains about **3.9 watt**-hours, or 0.0039 kilowatt-hours, which is plenty of energy to keep your small flashlight bulb lit for hours before you have to change the batteries.

**Battery**capacities are roughly as follows for the most common types: an

**AA**cell has 2500 mAh @

**1.5V**= 3.75 Wh. an

**AA rechargeable**cell has 2000 mAh @ 1.2

**V**= 2.4 Wh.

Keeping this in consideration, how many watts is 8 AA batteries?

You have **8 AA batteries**, which deliver 2800 ma/h at 1.5 V each. If you connect them in parallel, then you have a 2800x8 ma/h 1.5 V **battery** pack.

Starting the engine will require 250 amps for a half second, and the most current a 1.5-volt **AA battery** can produce is 10 amps. Given the above, you'd need to start with a string of eight AAs to get your necessary 12 volts.