When charging, the charger has been flashing red is normal, because this is the charging status indicator, indicating that it is charging, when fully charged, the charging status indicator will stop flashing or turn green.
operating principle
The charging indicator light of the charger only detects that the voltage is too low. When charging, the charging current is relatively large, the red light is on, the green light is turned after 10 seconds, and the voltage rises to the detection voltage and the green light is indicated. This shows that the charger itself has a circuit to detect the voltage level, as long as the original foundation is modified to meet your requirements.
1: Change the sampling resistance after the switching power supply, and increase the secondary voltage of the charger by about 1V.
2: Change the charging current sampling resistor to make it smaller, so that its voltage is lower can also play an effect.
Extended information:
operational approach
Charging is an important step in using a rechargeable battery. Proper and reasonable charging is very good for extending battery life, and improper charging will have a great impact on battery life. Lithium batteries are basically packaged separately according to each product and are not common to each other, so each product also provides its own charging equipment, which is not common to each other, and can be used as long as it follows the respective instructions.
After the active speaker is fully charged, the charging indicator light begins to flash after a while, which is that the battery of the active speaker has failed, resulting in a large loss of power, so it begins to charge again, the active speaker also has a battery supply of power to operate normally, if the battery time is too long or continuous use, it will cause aging failure. It is necessary to replace a new battery before charging can be completed
1. [Sound is also intermittent with the indicator light.] Sound is also intermittent with the indicator light 'as a' volume indicator 'and' signal strength indicator ', so it is normal. It's the dry drop
2. [sound indicator light is always flashing.] If it is the power indicator light [sound indicator light is always flashing] so always flashing? That's a problem, but it's not a problem. It's not a problem.
3. [intermittent with the indicator light] not the sound is interrupted, but the power supply is interrupted or other fault is able to 'listen' to judge.
4. There is also a phenomenon called 'blocking', which is the 'abnormal sound' caused by excessive volume or inefficient power supply seems to be [intermittent]...
You can move the power indicator back and forth if there is a flickering phenomenon when moving, that is, the contact is not caused by the amount, if the volume is large and small then flicker it may be caused by the power current is too small, that is, the load is too heavy, the power current is too small, and finally check the light tube itself has no problem.
It's just like the old things, the old appliances were also flashing when they were charging, flashing, proving that they were charging, and then when they were steady on, they were full