Why your outdoorsy friend suddenly has a gummy bear power bank

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.

> 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?

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...

I assume they're using Ah at the cell level (3.7v nominal), and then maybe rounding up slightly.

(This is the absurdity of using Ah to measure the capacity of consumer-oriented power banks. They usually output 5v over USB A or a variable voltage over PD, but measure current at the cell level. Of course this fact or the precise voltage is rarely stated anywhere.)