9 Volt Batteries Contain 6 AAAA Batteries

December 20, 2010 at 2:00 am 7 comments

By Chad Upton | Editor

The batteries in most consumer electronics produce 1.5 volts each.

Different products use different numbers of batteries to achieve different voltage requirements. For example, a TV remote might be designed to run on 3 volts, so two 1.5 volt batteries will provide the necessary voltage when connected in series.

Larger devices, such as radios with large speakers or large kid’s toys, typically have larger batteries, like C and D cells. Smaller devices often use AA and AAA batteries, allowing the devices themselves to be smaller. All of these batteries output 1.5 volts, but the larger batteries have much higher capacities, meaning they last longer. D batteries have four times the capacity as AA’s. So, if you’re going to be blasting music on the beach, you’ll change fewer batteries if your radio uses D batteries.

There are many other types of batteries that are not 1.5 volts. One of the most popular is the nine-volt battery, which is technically called a PP3 battery. Smoke detectors, garage door remotes, transistor radios and a variety of other devices use these batteries.

They’re pretty convenient, giving you the voltage of six batteries after only inserting one battery. In fact, that’s exactly what they are — they’re just containers that link six smaller batteries together. Here’s a picture of a nine-volt battery that I took apart:

Each of the six batteries outputs 1.5 volts, giving a total of 9 volts when connected in series. The name brand nine-volt batteries usually contain six quadrouple A batteries (AAAA) which are rather uncommon in consumer electronics but find a home in medical devices such as glucose meters.

Some of the lesser known battery brands may contain 6 flat cells which are not easily reusable. As you can see in the picture above, AAAA batteries are very close in size to AAA cells. That’s worth noting since they could save the day if you’re short on AAAs:

Keep in mind, device manufacturers often use standard batteries in their rechargeable products and you can replace them yourself.

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Sources: Wikipedia (Batteries: D, AA, AAAA, nine-volt)

Entry filed under: Around The House, Gadgets and Toys, Geek, Hacks. Tags: , , , , , , , , , .

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7 Comments Add your own

  • 1. Shawn Rosvold  |  December 20, 2010 at 7:06 am

    This is not true.

    Reply
    • 2. Chad Upton  |  December 20, 2010 at 9:44 am

      If you have reliable sources that indicate anything contrary to what I have stated, I’d be happy to include the most accurate information possible.

      Reply
  • 3. Jim  |  December 21, 2010 at 4:51 pm

    Very interesting. These are the kind of secrets I like to see.

    Reply
  • 4. KF  |  September 19, 2013 at 2:04 am

    9V energizers consist of AAAA cells too – however thay are slighly shorter than regular AAAA – and a tiny bit thinner due to the missing label.

    Reply
  • 5. Terri Smith Schofield  |  December 23, 2013 at 10:52 pm

    I have a tablet stylus that takes a AAAA battery. I can’t see buying a package of multiples just for one. I don’t know how long each lasts or how to prevent depletion while the stylus is not in use.

    Reply
  • 6. Terri Smith Schofield  |  December 23, 2013 at 10:54 pm

    Forgot to ask the question. . . Can i use one from the 9V pack?

    Reply
  • 7. Garry  |  December 21, 2015 at 4:28 am

    Not any more.
    I took a dead 9V alkaline apart a week ago & it had 6 flat batteries stacked on top of each other.
    There wasn’t any dead space between each cell.

    Reply

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