The sudden power failure of electric vehicles is mainly due to the poor contact of the power supply line of the battery power supply. Electric vehicles in the process of driving due to vibration will lead to poor contact of the power supply line, then you can check the fuse and connector, the line can be connected. Maintenance method:
1, should be sufficient electricity before use. Newly purchased electric vehicles should be fully charged before use. Because many electric vehicles have been shelved in the store for several months, or even more than half a year, they must be fully charged before use, and it is best not to use immediately after sufficient electricity, which needs to stand for about ten minutes.
2, the battery should be firmly installed on the electric bicycle. When the battery is taken off and charged, the battery should be firmly installed on the electric bicycle to prevent the battery from being damaged by vibration when riding. Do not throw, roll, or weigh the battery while it is being transported. 3. Keep the battery dry and clean. Often remove the dust and dirt on the cap of the battery, pay attention to keep the battery dry and clean, to prevent the battery from discharging itself.
4, develop a good habit of charging the battery every night. Never let the battery in a state of lack of power for a long time, and to develop a good habit of charging the battery every night. If not used for a long time, it should be fully charged, placed in a cool and dry place, and charged regularly, generally 10 days.
The reasons for this situation can be roughly divided into three points: poor contact, protector action, and controller change.
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2, poor contact: tighten all the joints with a screwdriver to prevent the bumpy vibration of the electric car when walking loose the joint. Also see if the lead of the electric car is broken, and there is no possibility of breaking the road.
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3, the protector action: the electric vehicle is not overloaded, short circuit and other hidden dangers, check the line is not grounded to the iron place.
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4, controller: Replace a new controller to try, change their own, before changing the controller model, to ensure that the same model.
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5. When disassembling, take photos while disassembling to ensure that the line is not connected incorrectly when it is newly replaced.