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A 835083 3.7V 4000mAh LiPo Battery DIY for Portable Power Bank No PCM inside!|Rechargeable Batteries| - AliExpress
![I took apart an unbranded USB power bank and inside were the left 2 components, though the battery (left) isn't very good. I was wondering if I could somehow wire my old I took apart an unbranded USB power bank and inside were the left 2 components, though the battery (left) isn't very good. I was wondering if I could somehow wire my old](https://preview.redd.it/w7xbb8sezui51.jpg?width=640&crop=smart&auto=webp&s=f1ca3347a317222882f9f513d7c5728bea77e6d9)
I took apart an unbranded USB power bank and inside were the left 2 components, though the battery (left) isn't very good. I was wondering if I could somehow wire my old
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