Solution to the problem that the full charging voltage of Wuqi platform Bluetooth headset cannot reach its set value
Do I need to apply to join the digital audio system research and development exchange and Q&A group (research group)? You can add me on WeChat hezkz17. This group provides audio technology Q&A services. The + group will give away Bluetooth audio and core development materials for DSP audio projects.
Basic knowledge of battery charging
1. There are three stages of charging: trickle charging p-chg, constant current charging CC, constant voltage charging CV, until end .
2. The recharge voltage is 4.1V.
Two experiments
1 Headphone development board + simulated battery test
Only configure the json file 4430mV, and the charging will be stopped at 3.87V (the charging current approaches 0), but it will not take effect.