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After using this for a couple of years, I noticed that sometimes the bluetooth would not connect. My current theory is that the voltage eventually gets too low to power the USB. I think this is because I opted to to power it with only a 7.4 volts battery.
I think it is time to update this speaker with a 3S2P battery pack for a voltage of about 11.1v which should give it the longevity it deserves. The upper voltage would be 12.6v while the low voltage would be 9v. The capacity of this new pack should be about 4Ah @11.1V or 44.4Wh
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Power consumption recording while idle and while listening to some tunes.
| Idle | 19 mA |
|---|---|
| Running | 260 mA |
Projected Run Time (3.2Ah/0.260A) | ~12 hours |
Bluetooth Module
Specifications
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