this post was submitted on 30 Nov 2025
417 points (99.5% liked)

Technology

7385 readers
223 users here now

News community around technology, social media platforms, information technology and governmental policy surrounding it.

What doesn't fit here?

The core of the story has to be technology focused.


Post guidelines

Title formatPost title should mirror the news source title. If you don't like the title of article, look for an alternative source instead of editorializing it.
URL formatPost URL should be the original link to the article (even if paywalled) and archived copies left in the body. It allows avoiding duplicate posts when cross-posting.
[Opinion] prefixOpinion (op-ed) articles must use [Opinion] prefix before the title. Opinion articles refer to articles that their publisher doesn't explictly endorse.
Country prefixCountry prefix can be added to the title with a separator (|, :, etc.) if the news is from a local publisher who doesn't clearly mention the country.


Rules

1. English onlyTitle and associated content has to be in English.
2. Use original linkPost URL should be the original link to the article (even if paywalled) and archived copies left in the body. It allows avoiding duplicate posts when cross-posting.
3. Respectful communicationAll communication has to be respectful of differing opinions, viewpoints, and experiences.
4. InclusivityEveryone is welcome here regardless of age, body size, visible or invisible disability, ethnicity, sex characteristics, gender identity and expression, education, socio-economic status, nationality, personal appearance, race, caste, color, religion, or sexual identity and orientation.
5. Ad hominem attacksAny kind of personal attacks are expressly forbidden. If you can't argue your position without attacking a person's character, you already lost the argument.
6. Off-topic tangentsStay on topic. Keep it relevant.
7. Instance rules may applyIf something is not covered by community rules, but are against lemmy.zip instance rules, they will be enforced.


Companion communities

!globalnews@lemmy.zip
!interestingshare@lemmy.zip


Icon attribution | Banner attribution


If someone is interested in moderating this community, message @brikox@lemmy.zip.

founded 2 years ago
MODERATORS
 

While lithium extraction technologies generally focus on ways to get the essential metal out of the ground, there's another source to mine: existing batteries that no longer work. A new technique could now make that process economically viable.

you are viewing a single comment's thread
view the rest of the comments
[–] AI_toothbrush@lemmy.zip 42 points 10 months ago (7 children)

Idk where they got the picture from but 4300mah in aa size would be insane. Thats like 2.5 times as much capacity as how much the best ones provide currently.

[–] rizzothesmall@sh.itjust.works 42 points 10 months ago (2 children)

Was gonna say maybe they're 18650s but it Def says AA on them. I'm gonna go with it's a made up / AI-generated image

[–] AI_toothbrush@lemmy.zip 5 points 10 months ago

Yeah probably tho i kinda wish they existed lol

[–] cmnybo@discuss.tchncs.de 4 points 10 months ago

They would have to be 21700 cells to hold 4.3AH. 18650 cells top out around 3.6AH. While it is possible to make higher capacity cells, there are some major downsides with doing so.

[–] BCOVertigo@lemmy.world 18 points 10 months ago

It's just a stock photo used since at least 2017 that appears to have had the 4300mah text added on more recently.

[–] unknownuserunknownlocation@kbin.earth 14 points 10 months ago (1 children)

Looks like AI to me. Also, those would most likely be NiMH batteries, which AFAIK don't have any lithium.

[–] AI_toothbrush@lemmy.zip 5 points 10 months ago

The way its packaged with the indent at the top would make it a lithium cell but yeah its fake anyways

[–] fuckwit_mcbumcrumble@lemmy.dbzer0.com 6 points 10 months ago (1 children)

Maybe they’re just ultra fire batteries?

[–] gkaklas@lemmy.zip 2 points 10 months ago

🩵

One time I went to a local shop with cheap electronics etc, and they sold... UItraFire batteries, with an i instead of an l! Double fake 😄

[–] Septimaeus@infosec.pub 3 points 10 months ago* (last edited 10 months ago)

In case anyone’s curious: it is likely a cell wrapper misprint/typo.

4300mWh AA lithium ion cells are a standard extended-life chemistry. 2866 mAh is their actual rated capacity.

Edit: 2866 x 1.5 = 4,300

[–] BlackVenom@lemmy.world 2 points 10 months ago (1 children)

There are plenty of cells that size over 3000mah.

[–] AI_toothbrush@lemmy.zip 4 points 10 months ago (1 children)

The highest capacity one that is properly commercially available is the vapcell f15 which is known for quality control issues. Its advertised capacity is 1500mah but multiple sources measured it at an actual usable capacity of 1250-1350.

[–] BlackVenom@lemmy.world 2 points 10 months ago

14500s are fairly uncommon.... I assumed these were the much more common 18650.

[–] RememberTheApollo_@lemmy.world 1 points 10 months ago

It’s probably an AI gen image.