Batteries Inside Batteries?

[specgrade]

 Has anyone ever taken apart a 9v battery to get the AAAA batteries inside? I could use those AAAA batteries for my Wenger Spotlight! Any tips?

[Grant Lamontagne]

I didn't realize there was anything inside a 9v battery except acid and nasty messes.....

Def

[nuphoria]

I heard about it but not tried myself - you tried CPF?

[John]

You'll find plenty of this on the Tube 

[thebullfrog]

I've heard not all 9V's will work, most have a bunch of the AAAA's but some (cheap off-brands I believe) will just be filled with acid/goop.

[Neil]

I've done just that to get cells to power a Wenger Laser. So yes, it'll work

[Andreas]

I've opened 9V batteries to use the battery chassis to make a flashlight

[cerbera147]

I am not a cheapskate, just careful with my money but even I would just buy some AAAA's than risk that 

[Andreas]

Risk what? If you've ever seen the inside of a alkaline battery you know it's not dangerous. Heck we even open3ed those up in school

[cerbera147]

Just something about ripping opening a perfectly good PP3 battery to get at some 'free batteries' doesn't appeal to me 

I definitely wouldn't use them in any expensive gear I had either 

Eneloops all the way 

[specgrade]

Just something about ripping opening a perfectly good PP3 battery to get at some 'free batteries' doesn't appeal to me 

I definitely wouldn't use them in any expensive gear I had either 

Eneloops all the way 

 To get AAAA I'll chance it. The only thing I need them for is my Wenger. Strange size batteries are like $2 for just one.

[Gareth]

I've heard not all 9V's will work, most have a bunch of the AAAA's but some (cheap off-brands I believe) will just be filled with acid/goop.

Don't know about "acid/goop" but on one cheap one I tried it was made up of a bunch of flat cells stacked one on top of the other.  Absolutely no use whatsoever if what you need is some AAAA.  

[Sazabi]

I've heard not all 9V's will work, most have a bunch of the AAAA's but some (cheap off-brands I believe) will just be filled with acid/goop.

Don't know about "acid/goop" but on one cheap one I tried it was made up of a bunch of flat cells stacked one on top of the other.  Absolutely no use whatsoever if what you need is some AAAA.  

It depends on the brand; some 9V will contain AAAA, while some AA (or is it AAA?) contain button cells.  It's screwy. XD

[specgrade]

 So I guess it's a crap shoot. Well, biscuit burner.  

[thebullfrog]

I saw a video of it being done with an Energizer, so I imagine if stick with that you should be fine.

[Neil]

For those in the UK, Wilkinsons own brand are made from AAAAs.  Or at least they were last time I ripped one open.

It depends on the brand; some 9V will contain AAAA, while some AA (or is it AAA?) contain button cells.  It's screwy. XD

The button cells in AA/AAA is a myth perpetuated by fake vids on YouTube.  But just to muddy the waters further some 12V barrel batteries are indeed made from button cells.

[Sazabi]

For those in the UK, Wilkinsons own brand are made from AAAAs.  Or at least they were last time I ripped one open.

It depends on the brand; some 9V will contain AAAA, while some AA (or is it AAA?) contain button cells.  It's screwy. XD

The button cells in AA/AAA is a myth perpetuated by fake vids on YouTube.  But just to muddy the waters further some 12V barrel batteries are indeed made from button cells.

Hmm, did not know that; it's hard to tell what is, in fact, truth on the net. :/

[NutSAK]

The button cells in AA/AAA is a myth perpetuated by fake vids on YouTube.  But just to muddy the waters further some 12V barrel batteries are indeed made from button cells.

Yeah, AAs are cells not batteries.  A battery is a group of cells tied together, as in the case of the AAAA cells in the 9V battery.

Another myth that is perpetuated is the large 6 or 12 volt batteries that contain many AA cells.

[specgrade]

I saw a video of it being done with an Energizer, so I imagine if stick with that you should be fine.

 No kidding? Well, that is the weekend project then, thanks!