A - DNS RecordAA - BatteryAAA - BatteryAAAA - DNS Record

A - DNS Record
AA - Battery
AAA - Battery
AAAA - DNS Record

@sysop408 @mattdm @kwayk42
Interesting question, the people who have taken those apart would know.

I'm pretty sure lead acid car batteries put plastic walls between the cells (that chemistry gives 2 volts, so also needs six cells for the 12 volts).

A - DNS Record
AA - Battery
AAA - Battery
AAAA - DNS Record

@leeloo @sysop408 @mattdm @kwayk42 yeah, six flat cells. in another branch of the thread someone posted a photo: https://infosec.exchange/@astrid/116045181097859309

A - DNS Record
AA - Battery
AAA - Battery
AAAA - DNS Record

A - DNS Record
AA - Battery
AAA - Battery
AAAA - DNS Record

@zwol @sysop408 @mattdm @kwayk42
Oh. I saw the photo, but didn't realise the stripes were cells

A - DNS Record
AA - Battery
AAA - Battery
AAAA - DNS Record

@ruawhitepaw @astrid
B# and E#? Those keys are missing on my keyboard.

On the other hand, German speaking countries and areas that got their music theory from Germany tend to use H for the B key, so you can add musical note for H.

A - DNS Record
AA - Battery
AAA - Battery
AAAA - DNS Record

@astrid is there any easy way to tell which ones are or aren't without ripping apart a 9V battery?

I actually didn't even know AAAA batteries existed before I learned about this. I found an old 9V and tore into it as soon as I read about it and that one was indeed made from 6 AAAA batteries.

@kwayk42

A - DNS Record
AA - Battery
AAA - Battery
AAAA - DNS Record

@leeloo that went over my head too.

@astrid AAAA is also a battery! Very uncommon but you can still get some if you know where to look for em! 9V batteries sometimes have six cells slightly smaller than AAAA inside of them, too.