1. The charger is broken. Replace the charger.
2. If the charging data cable is broken, just replace the data cable.
3. The battery cannot be charged and needs to be replaced.
4. The power management circuit of the speaker motherboard is faulty, and the audio motherboard needs to be repaired.
Extended data:
In order to avoid charging problems, you can pay attention to the battery model, advantages and disadvantages when buying Bluetooth speakers, as follows:
1, polymer battery
Advantages: safe and efficient, and the soft bag has no explosion danger.
Disadvantages: there are many kinds, and the price difference between pure cobalt (good) and pure manganese (poor) polymer batteries is several times.
2. 18650 battery
Advantages: excellent performance, excellent charge and discharge (mostly used for notebook batteries), explosion-proof protection.
Disadvantages: There are too many disassembled batteries and too many old batteries. Similarly, the difference between the good battery and the bad battery of 18650 is 5- 10 times.
3, aluminum shell battery
Advantages: the price is very cheap.
Disadvantages: poor performance. Without any explosion-proof measures, the consequences of the explosion are unimaginable.
4. Battery protection board:
The charge and discharge protection of battery protection plate of brand-name batteries is poor and unstable, which is easy to damage batteries and electronic equipment. Unstable current output not only affects the sound quality, but also causes loud current sound.