1 Overcharge, lead-acid battery overcharge will cause a large amount of liquid to evaporate easily cause bulging, or even become hot. Lithium-ion battery overcharged for a long time will also cause the battery to become hot and even cause a fire. 2 The charger voltage is too high, you must use the original charger. For example, a 48-volt battery cannot use a 60-volt charger. High charger voltage can easily cause the battery to become hot or even catch fire. 3 The load is too heavy, no matter whether it is carrying people or goods, it should not be too heavy, otherwise it will be difficult to turn the wheel and it needs a large current to discharge, which may easily cause the circuit to be hot or the battery to be hot to cause a fire. Solve the fire: 1 Use the original charger for charging, the original charger is suitable for the car's battery. 2 Fully turn the green light and pull out in time. It is strictly forbidden to connect the power supply for a long time. 3 Carrying people or goods should be light, the gravity of the car light downward is small, and the current required for the wheels to turn easily is small.
How to prevent the theft of electric vehicles?
1. Install an anti-power-off alarm, available from Mobao for around RMB 50. The thief usually cuts off the main line first, and the ordinary alarm immediately stops calling hard. This alarm will keep alarming, and the thief will be scared away. The installation is very simple, just plug and unplug the circuit yourself.
2. Install anti-theft screws on the fixed iron sheet and the seat. The commonly used screws are 8 or 10 external hexagons. Now electric vehicles such as Yadi, Emma, and Green Energy have begun to use one anti-theft screw, with There are two kinds of holes, plum and five stars.
3. Use welding or ab glue to fix a cross-shaped iron bar. This method is effective, but it is also troublesome to change the battery later. You need to use a cutting machine.
The best way is to use three anti-theft measures together, which can basically guarantee foolproof. The total cost does not exceed 100 yuan, which can ensure the safety of electric vehicles and batteries.