DIY: 9V battery hack. Save money on 9V Battery with Li-ion rechargeable 18650 or Lipo

Описание к видео DIY: 9V battery hack. Save money on 9V Battery with Li-ion rechargeable 18650 or Lipo

Today, I will show you how to save money on 9V batteries. By using Li-ion rechargeable batteries such as LiPo or 18650 batteries, you will never have to spend money on a 9V battery again. And Li-ion batteries last a lot longer than a 9V battery. And the best thing is Li-ion batteries are rechargeable.

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