TIL that quadruple A batteries exist

Wait until you see this:

https://brokensecrets.com/2010/12/20/9-volt-batteries-contain-6-aaaa-batteries/

I took apart a lot of batteries as a kid. The nine volts never had batteries like this inside them.
- Since seeing this picture I have disassembled about 50 nine volts looking for this and have found about 3. Some full of coin cells too.
  Edit: I should say it was years ago I first saw this picture. I haven't disassembled 50 batteries in the last 2 minutes
- Some have stacked flat cells IIRC.
- The carbon-zinc ones never do, but the alkaline ones do, the ones I opened, anyways ( a few decades ago )
- some do, i have dissasembled some of them to look like this. not all of them though
And A23 cells have eight LR932 button cells inside
https://en.wikipedia.org/wiki/A23_battery
Could have about 1/3 more charge if they were solid.
Why aren't they?
- Because it’s a 9 volt battery.
  Batteries are cylindrical because it’s the most efficient shape to make them in. There is a central electrode with the electrolyte around it. By making it cylindrical it’s distributed evenly. Imagine having it square, then in the corners the layers would be thicker than on the sides.
  So that explains why the cells and normal AA batteries are cylinders. So why not have a 9 volt cylinder? That’s because the chemistry used for alkaline batteries produces 1.5 volts. A single cell, regardless of size, only produces 1.5V. So how do you get 9V out of a 1.5V battery? By putting 6 of them in series. 6 x 1.5V = 9V.

But.. does the mythical A battery exist?

Every battery is a battery.
- Most "batteries" are in fact cells.
- A battery has many faces. A battery has no name.
It would appear so not.
- An A battery is usually just called a 17500. They were used in laptop batteries and such but are now used in hobbies more. Mostly for flashlights, vapes, or Lightsaber replicas.
- Right - so that is a photo of an AA battery and a drawing of an A battery.
  So if I take a photo of a gorilla and draw Sasquatch next to it I have proof of Sasquatch! This is good info to me.
  BRB
- So does the B battery
That's preposterous

Usually they're used in thin devices where a bigger battery wouldn't fit. Lots of computer styluses take AAAA batteries, including the Microsoft Surface Pen. There are also some small flashlights and laser pointers that use them.

microsoft surface pen is my touchstone for this. the only way i could get new batteries was online and the pen lasted for so long if i bought a pack of 4 batteries i’d have lost the other two but the time they ran or so id need to but a whole new pack.
- I'm fairly certain you can take apart most 9 volt batteries to get at the AAAA batteries inside
Yeah I bought a 6 pack of them when I bought my pixel slate. They expired after I'd used two
All my remotes use them

There are six of these in some 9V piles

Which was the secret knowledge for those of us with pen lights or active stylii back in the day that required AAAA cells. And then you'd find a cheap brand of 9v that actually had a stack of nonstandard square cells inside it instead... Bastards.
Certain lantern batteries are filled with AAs as well
- I've got one that takes AA's OR 18650's. Its pretty sweet.

I remember when I had a surface tablet, the stylus thing used a AAAA battery

Save money buying just 1 AAAA battery and cutting it in half for two AA batteries.

I think they follow Hydra rules, if you cut it in half you end up with an AAAAAAAA battery
- Hail Hydraaaaaaaa!

Where they made by Ubisoft?

They are only sold as a temporary license. Then Ubisoft breaks into your house and takes them away.

It's what 9v batteries are made of. 6 AAAA batteries in a box.

Some are. Others are stacked like this:

I have a wacom-type pen for a tablet that uses one of those. It was a total pain in the ass the time I was traveling and accidentally discharged it by jamming the button in a tight-packaged bag. Turns out, they are pretty much only available online. No normal shop ever stocks them, not even electronics shops nor radio shacks. Barely anyone even heard of them. Tried disassembling a few 9V's, but all of them were the stacked kind. And with international shipping going 2-6 weeks and me changing locations more often than that, it was an extremely difficult to get hold of them.

When Dan's Data reviewed these, he said something like "even if you use this in space, you are still no further away from a shop that sells replacements than you would be at home"

The stylus on a surface pro 7 uses one.

Same goes for the kobo libra 2’s stylus
Yep, I bought a pack of these, but then i didn’t need them because I didn’t use the stylus enough/stylus had a good battery life, BUT then when I did want to use the stylus I had no fucking idea where I stored those batteries.
My old Genius graphics tablet used AAA batteries, as it was from the times when Wacom's patents on battery-free pens haven't expired.

it looks like batteries are screaming like AAAAAAAAA

Every single 9 volt battery you've used and original Surface Pen.

Only name brand. Take apart a discount 9V and it's just one big pile.
- I've only seen the stack one, but I took apart lots of procells

/c/sounding

Lemmy has bathymetry enthusiasts?

I had a pen and pad that copied what it wrote onto a palm pilot that used these.

At what amount of As does it indicate the battery is just screaming?

According to Dankpods, it's 3. But that's a shriek, not a scream.

I use them in my active pens.

I despise and ignore battery powered electronics that don't need 18650s. And i use Arch, BTW. :p

wacom stylus!

Old laser pointers used to use quad-As

Old ones

I have a flashlight at work that uses them. It's a PITA because we don't stock AAAA batteries at work so they have to be special ordered.

Wouldn't it be cheaper to replace the flashlight then?
- the internet has ruined me.
  i've seen flashlight twice and keep reading it as fleshlight, and wondering what fleshlight requires batteries.
- If his job required constant use of a flashlight a fully rechargeable one would make the most sense. Faster cheaper better
You can buy a 9v and open the case with some pliers and then boom. You go yourself some AAAAs
- Came here to say this. I once cut open a 9-volt battery and discovered it was really just 6 AAAA batteries wired in series.

Is this what Ubisoft is using to power their development??

These are common in Microsoft Surface stylus and my Kobo Elipsa pen uses them but I'd never heard of them until 2021.

The stylus for a surface tablet uses one AAAA battery, and it will last for hundreds of hours of use. I wish I still had mine, as my surface tablet was my art tablet and I miss doing art. Nobody pay attention to the fact I was bad at it.

Any device that it fits...it's still just 1.5v battery.

There is no difference between AA, or AAA and apparently AAAA other then size.

There is a difference other that size: capacity
- There’s a difference in capacity between AA batteries too. So size then..
You could say the same about C and D batteries too.
They're all 1.5V
- I remember needing 4 D batteries for my boombox as a teen. :D
- They even have adapters to convert AA to C or D
- Yup

Obligatory AA AAA AAAA

Here is an alternative Piped link(s):
AA AAA AAAA
Piped is a privacy-respecting open-source alternative frontend to YouTube.
I'm open-source; check me out at GitHub.

like a 16 gauge or sth

Inside of other rectangular batteries.

What does your remote use?

USB-C and solar. It's 2024
- Now I feel poor. Thanks.
- That sounds amazing. I've never had anything rechargeable before, and I have moderately new, mid-range TVs. Where are you getting the good stuff?
I haven't had one that needed anything other than AA or AAA...uh...ever?
What brands are you buying?
- I have two vizio tvs and bluray player that all take two aaaa batteries
  Edit: just rechecked and they are aaa, not aaaa. I do have a penlight with aaaa though

One is shorter than the others. Triple, eh?

I don't see it ; perspective?
yeah, one of them is way shorter than the others but it's really wide to compensate.

Streamlight Stylus LED penlight