There's a reason your Galaxy phone battery capacity isn't bigger

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www.sammobile.com/news/reason-galaxy-phones-bat…

cross-posted from: https://lemmy.world/post/32467417

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Anti-clickbait title: the US federal regulation limiting cell phone battery capacity.

If you want to skip the click through: 20Wh maximum

https://www.ecfr.gov/current/title-49/subtitle-B/chapter-I/subchapter-C/part-173/subpart-E/section-173.185

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Thanks for this. Another important bit:
5,000mAh × 3.88V ÷ 1,000 ≈ 19.4Wh

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The Watt-hour (Wh) rating may not exceed 20 Wh for a lithium ion cell or 100 Wh for a lithium ion battery.

The difference between cells and batteries is that you have to have multiple lithium cells to make a battery.

Edit: this is around 25000 mAh

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I'm guessing a pouch cell counts as 'one cell' vs. a larger battery pack with multiple cylindrical cells.

It also explains why Apple does that weird thing with 4-5 batteries in a macbook...

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Does this mean the US doesn't have powerbanks with e.g. 30000 mAh capacity?

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Bbbut: https://www.unihertz.com/products/tank-3-pro

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If you read the article or regulation, you'll note that there are some ways to get around this by dividing the battery into cells.

Also, that is a fucking hilarious "phone."

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