
My project took about 5 minutes and worked fine. Then it burned out and stopped working. My battery still works great with a power amp I bought direct from the Adafruit website. My project still works when I connect my Arduino with a USB cable, so it didn't break anything but itself. My project only uses about 30mAh, so I didn't overload this device in any way. The battery I used was the official battery from the Adafruit website. Battery 3.7V 2500mAh.

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