Aliexpress DIY 21700 Spring Loaded Fast Charging Power Bank
Just a video showing you how i made this amazing power bank from Aliexpress. Get the cells from aliexpress or from another place like 18650batterystore.com or IMRBatteries. Great thing about this design is that its easy to replace the batteries if there are any issues and adds a transparent techno geek type look to it which is unique and made more amazing by the cells and wrapping you use. 4 bay 21700 power bank https://rb.gy/5ksqq6
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