17. Battery related matters of the BTR15


The BTR15 has a high-performance lithium polymer battery with a capacity of 550mAh.

Battery life

about 8 hours (ACC format, high gain,3.5mm headphone out)

about 8 hours (ACC format, high gain,4.4mm headphone out)

about 3 hours (In PHONE Mode)

What power supply adapter is suggested to charge the BTR15?

The BTR15 doesn't support fast charging. Some fast charging adapters can charge the BTR15, but the BTR15 won't be turned to fast charging mode and may have incompatible issues.

So it is recommended to use a 5V2A charger, which can fully charge the BTR15 in about 2 hours .