How to repair a Tricycle Motorcycle circuit power outage?

The main factors affecting Electric Tricycle power outages are:

① Electric Tricycle battery connection line, if the screws of the battery connection line are loose, poor contact or disconnected, if the simple battery is installed under the foot pedal, the Electric Tricycle battery cover can press the disconnected wire to energize, but if it is separated by bumps, the battery will be cut off. Electric Tricycle
② Air switch, if the time becomes longer, the current of the air switch will be larger than that of a Tricycle Motorcycle; when a large current flows, the air switch will jump. Of course, if the main wire screws on both sides of the air switch are not tightened, it will turn black, which is also a jump of the air switch.
③The electric door lock core is loose, and the lock core is damaged over time and cannot be connected well. Vibration can cause poor lock contact and loss of power. Some locks have too many keys strung together, which can cause further damage to the lock cylinder and cause a loss of power.
④ Wiring problems, such as whether the battery connection wire is in poor contact, the Electric Tricycle battery is in poor contact with the locking wire, the battery negative wire is in poor contact, etc.
Check the line where the front of the car rotates is more likely to break.
If the table does not light up, but the Tricycle Motorcycle does not go, the problem may be the answer above. If the table does not light up, but the Tricycle Motorcycle can still be driven, there may be a problem with the connection line of the table. Is the positive and negative poles of the table in poor contact, whether the solder joints of the circuit board inside the table are loose.