How to make power bank with 9 volt battery | Youtube - https://www.youtube.com/c/letsseeinside Facebook Page - https://www.facebook.com/LetsseeinsideOfficial Instagram -... | By Let's See Inside | Facebook
![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://i.redd.it/w7xbb8sezui51.jpg)
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
![Amazon.com: Happy GO 2 in 1 Portable Charger with Four 3.7V Lithium Batteries,Charger Set with 2USB, Mobile Battery Multiple Protection 2A Quick Charge DC170 (8000mah) : Electronics Amazon.com: Happy GO 2 in 1 Portable Charger with Four 3.7V Lithium Batteries,Charger Set with 2USB, Mobile Battery Multiple Protection 2A Quick Charge DC170 (8000mah) : Electronics](https://m.media-amazon.com/images/I/71eURJN4MML.jpg)
Amazon.com: Happy GO 2 in 1 Portable Charger with Four 3.7V Lithium Batteries,Charger Set with 2USB, Mobile Battery Multiple Protection 2A Quick Charge DC170 (8000mah) : Electronics
![Besufy Portable 18650 Battery Charger USB Type-C LCD Display DIY Mobile Power Bank Case White - Walmart.com Besufy Portable 18650 Battery Charger USB Type-C LCD Display DIY Mobile Power Bank Case White - Walmart.com](https://i5.walmartimages.com/asr/fa625c5e-d61e-4b29-ac7e-0071182d5f87.0f4091a19849572a55760695134376a2.jpeg?odnHeight=612&odnWidth=612&odnBg=FFFFFF)
Besufy Portable 18650 Battery Charger USB Type-C LCD Display DIY Mobile Power Bank Case White - Walmart.com
![How to make a Power bank using old Phone Battery - Under $1 | Prepaid phones, Old cell phones, Phone battery How to make a Power bank using old Phone Battery - Under $1 | Prepaid phones, Old cell phones, Phone battery](https://i.pinimg.com/736x/f1/e1/5e/f1e15e228d3a16cb3ab386c5ca302391.jpg)