The main reasons are:
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The indicator light is in poor contact with the circuit, and is broken when connected;
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Indicator light type is neon bubble, this indicator light itself has a certain flicker.
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Socket, also known as power socket, switch socket. Socket refers to a seat that has one or more circuit wires that can be inserted, through which various wires can be inserted. This makes it easy to connect with other circuits. Through the connection and disconnection between the line and the copper part, the final connection and disconnection of this part of the circuit are achieved.
one
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The charging power switch is faulty. You can short-circuit the two pins of the switch to check whether the indicator light can light up normally. If it can light normally, it indicates that the key switch is damaged and can be replaced. If no, the fault is in the subsequent circuit.
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two
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The booster plate is faulty. The detection of the booster plate fault can only be measured by a multimeter. Press the power switch, the multimeter is set to DC voltage, the black watch pen is grounded, and the red watch pen starts from the correct voltage output pole of the charging bank and measures the relevant element in reverse.