How to repair LED rechargeable flashlights?- Conbo Electronics Co., Ltd.

How to repair LED rechargeable flashlights?

The LED charging flashlight consists of an LED light source, a case, a battery, a power switch, a PCB circuit board, etc., and can be used for cyclic charging.

How to repair an LED rechargeable flashlight that encounters problems after using it for a period of time?

When the LED beads of your flashlight are not on, but when charging is normal, the light may burn out. Just replace the LED light. Now let me briefly introduce the repair method for LED rechargeable flashlights.

1、 LED charging flashlight battery repair method

If the indicator light is not on, please replace the indicator light, but be careful not to reverse the polarity.

2. If the high-voltage step-down capacitor is damaged or the rectifier diode is damaged due to overvoltage and cannot be charged, a regular pointer multimeter can be used to detect and solve the problem

3. The power switch has poor or damaged contact and cannot be turned on.

2、 How to repair LED charging flashlights

Because the household voltage of residents in our country is 220V, the voltage setting of the LED strong light flashlight before leaving the factory is 220V. If we charge the flashlight recklessly under high voltage or voltage drop, it may cause the internal circuit of the flashlight to burn out.

In this case, we need to use a soldering pen to power it on. In addition, we also need to use a test pen to instantly detect where the problem is.

When the LED beads of your charging flashlight are not on, but the battery is charging and the display information is normal, there is a high probability that the LED beads are damaged. You only need to replace the LED beads to solve the problem.

When our flashlight cannot continue to charge, it is usually due to the end of its battery life or our improper operation. At this point, we must complete the repair of the charging flashlight by replacing the battery of the charging flashlight.

When the lighting effect of your flashlight flickers, it is usually a problem with the diode of the flashlight. The diode can be detected for damage through a multimeter, and the flashlight repair can be completed by replacing the diode.