How to Make Rechargeable 9V Li-Ion Battery | DIY 9V rechargeable battery
In this video, I will show you how to make a 9-volt rechargeable battery and use it anywhere, and save on battery costs. All you need is two 3.7V batteries, a voltage booster module, a charging module and a non-usable 9V battery body.
In this project, I will show you how to make the charging module very small so that it fits more comfortably inside the 9-volt battery.
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List of tools and parts:
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Home by Hotham
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