I needed a 12 volt battery pack for my bicycle LED lights that could run the lights for a couple of hours without charging. So I bought this "50,000mAh" battery pack from AliExpress. Noticing that it was quite lightweight, I thought I'd tear it down to see what was really inside it...

The offending battery pack: [ Ссылка ]

The offending AliExpress store = "Aleaivy battery 2 store":
[ Ссылка ]

(hint: it's not really 50Ah!)

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