First of all hello, I'm new in the arduino community so don't be bad with me ::slight_smile: , so the problem is that I'm planning to make a bluetooth speaker powered with a phone battery which is Li-Ion 3.7V and I'm looking for Li-Ion usb chargers for 3.7V and I found this but as I'm new in this, I…

I don't know if this USB Charger will work for my personal project

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