KP-551142 3.7V 500mAh Rechargeable Battery for Neckband, Bluetooth Headset, Bluetooth Speaker, DIY, Robotics
I'm trying connect an old set of bluetooth headphones to a new battery. I'm planning on connecting the board with 4 18650 cells in pararel from a powerbank that still works, so
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Can Bluetooth Headset Battery be Replaced?
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