How many AA batteries does it take to dry your hair for 10 minutes?
About 56 AA batteriesA 1,000 W hair dryer for 10 minutes uses about 167 Wh, and one AA holds about 3 Wh.
It takes about 56 AA batteries.
How we worked it out
A 1,000 W hair dryer for 10 minutes uses about 167 Wh, and one AA holds about 3 Wh. Alkaline AA batteries, about 3 Wh each, and no energy lost on the way. Real life adds a little friction and waste, so treat the number as a solid ballpark rather than a lab result. The constants behind every experiment are on the science page.
Watch it happen
This was one of the five experiments in It Took #18. In the game you guess first, then the experiment plays out with your number: too few and it fails, too many and it overshoots.
Play It Took #18Play today’s experiments
More aa batteries questions
- How many AA batteries does it take to fully charge a laptop? About 22.
- How many AA batteries does it take to use a heating pad for an hour? About 22.
- How many AA batteries does it take to microwave a meal for 5 minutes? About 28.
- How many AA batteries does it take to boil a liter of water? About 31.
- How many AA batteries does it take to keep an LED bulb on for a day? About 64.
- How many AA batteries does it take to play a PlayStation 5 for an hour? About 72.
- How many AA batteries does it take to watch 3 hours of TV? About 100.
- How many AA batteries does it take to iron clothes for 30 minutes? About 170.