The Portable Bluetooth Stereo Speaker How to Open and How to Increase Battery Life

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AliExpress s.click.aliexpr...
See my blog for products which I used in this video:diy-tipstricks...
In this video I will show you how to open and how to increse the autonomy and capacity of the batery from the portable bluetuth speaker.
Battery Capacity:it is 520mAh and I will increase it at 4400mAh
I used Li-ion battery cells from a laptop battery
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