Frequently make mistakes in battery charging Five tips tell you how to break it!

With the popularity of electric vehicles, there are also frequent problems. What is going on? In fact, most of the batteries on the market are of qualified quality. Therefore, the problem largely lies in the use and maintenance, especially in the charging. Note that it will cause problems such as shortened battery life. Talk about the misunderstandings and wrong practices of electric vehicle charging: 　　 1. The higher the charging voltage of the charger, the better. In the work, I found that the industry likes high-voltage chargers. It is said that this can make the battery full and drive a long distance. . When it was first used, it was really full and full than the national standard charger. But that is the result of increasing the voltage on the premise of sacrificing battery life. For electric vehicles and batteries, over-voltage charging for a long time will cause the battery to bulge and the capacity will drop rapidly.　　 Suggestion: It is recommended that the 12V battery charge should not exceed 14V, 24V should be stopped at 28V, and 48V should be stopped at 56V. No matter how high it is, problems are prone to occur.　　2. Charge it every day, or use the under-voltage protection to recharge. 　　 For lead-acid batteries, the memory effect cannot be said to be absent, but for nickel-cadmium batteries, it is not so obvious. Lead-acid batteries should be recharged in one-third of the time, and the only reference standard should be when the battery indicator light is on one-third of the time. Of course, first confirm whether your battery indicator is normal.　　 It is recommended to choose different charging schemes according to the battery type, and the charging voltage must be controlled within a safe range.　　3. Fast high-current charging 　　 Fast charging station This product is good in itself, but frequent fast charging should not be done. The battery created by current technology does not have the conditions for high-current fast charging. Fast charging will only cause one result. Chemical and physical reactions occur quickly in the battery. The specific manifestation is that the battery heats up and the belly is enlarged.　　Recommendation: Use less brand-name charging stations and prohibit high-current uncontrolled temperature charging. Even if it is emergency charging, please monitor the battery temperature at any time, if you find that the temperature rises, please stop charging immediately.　　4. Bring the charger in the car, and take it with you. Consumers generally like to bring the charger in the car. The result of this is often devastating. The current chargers are designed with switching power supplies, and long-term bumps will cause open soldering between the electronic circuit board and the components. If the sampling circuit fails, the charging voltage will increase significantly, causing the battery to swell in a short time. In severe cases, a fire may occur.　　Recommendation: Place the charger in a fixed place and don't bump it. It is strictly forbidden to carry it in the car. Even if it is carried, it must be fully considered that the bumps cause malfunctions.　　5. Chargers with fans　　 On the market, chargers with fans account for almost 70% of the market. In fact, a good fan is also very good. If the quality of the fan is not good, it will definitely cause a lot of noise. Compared with a charger without a fan that naturally dissipates heat, a charger with a fan is more prone to damage.　　 There are two reasons: (1) The life of the fan itself. (2) A large amount of dust brought by the fan accumulates inside the charger, causing poor heat dissipation and burning the charger.　　 It is recommended to choose a charger with a large heat sink that naturally dissipates heat.　　 Suggestions for the purchase of chargers and batteries: 　　 is our first choice if it is simple to choose, safe, and has complete protection functions. Pay attention to the following points: 　　 1. Perfect protection circuit. Whether protection facilities to prevent reverse connection, overload, overcurrent, and overvoltage are available. For any battery, there are charging current and voltage requirements. Excessive current will cause excessive temperature and cause the battery to become pregnant. Overload refers to whether the charger will burn out if overloaded in a short time. It mainly prevents high current damage caused by instant contact by first plugging in the charger and then wiping the battery. 2. The charger with a fan must be exhausted, and try not to use a suction charger. If it is suction, it is equivalent to buying a vacuum cleaner. After a long time, the dust inside is enough to cause poor heat dissipation. . It is recommended to use natural heat dissipation type.　　 3. Factory standard, complete certification. When choosing batteries, try to choose high-quality, well-reputed brand batteries, such as batteries. The battery quality is very good, the service is also good, the sales, customer service, technical support, maintenance and other aspects are well established, which can provide consumers with better after-sales service. Prev: Electric vehicle battery charging heats up These four reasons you need to know!