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Why your outdoorsy friend suddenly has a gummy bear power bank

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258 points arnon | 1 comments | 21 Sep 25 12:31 UTC | HN request time: 0.257s | source

https://archive.ph/1G2Ut
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cenamus ◴[21 Sep 25 13:07 UTC] No.45322381[source]▶
20Ah for 23 bucks? Seems like it's almost too good to be true. Wouldn't surprise me if it was just half that, would explain the price and weight.
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NedF ◴[21 Sep 25 21:49 UTC] No.45326979[source]▶
> Wouldn't surprise me if it was just half that,

This was openly crowdfunded in Japan. Please explain the lie/scam for us? How does Makuake rip people off?

https://www.makuake.com/project/haribo_dcglobal/

Is this comment anything more than the normal shit HN negativity?

Nihilism is so cool, thinking is so hard, if I try I might fail.

Sure you might be right. Just want to know where the scam is here?

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daveguy ◴[21 Sep 25 22:02 UTC] No.45327078[source]▶
Because 20ah for a 5v battery is ~357 Wh/kg which is more than the highest density lipo as of 2024 [].

Do you honestly think they are putting the most cutting edge lipo technology in a gummy bear branded battery pack?

I agree with your GP, it is unlikely.

Maybe at least consider the density vs SOTA before you accuse someone of being a nihilist.

[] https://www.cei.washington.edu/research/energy-storage/lithi...

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1. gruez ◴[21 Sep 25 22:42 UTC] No.45327329[source]▶
To be fair, as others have mentioned, claiming internal battery amperage compared to output amperage is a common enough fudge that they're not materially lying.