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How to prevent lead-acid batteries from bulging and causing fires  

Release date:2021-01-07 Author:kanglida battery Click:

With the popularization and use of electric bicycles, lead-acid batteries have entered the ranks of daily necessities. Due to improper maintenance and use, various problems often occur. Among them, the most common problem is that the battery life is not long, the battery is swollen, and the largest The dangerous problem is that the battery catches fire and explodes. Although the coefficient of fire and explosion of lead-acid batteries is not very high, it is worthy of everyone's attention.


  How to prevent lead-acid batteries from bulging and causing fires? ? How much do you know about this problem? ? Today, the editor of Zhengzhou Kanglida Electronic Power Co., Ltd. will give you some information on this issue. I hope it will be helpful to you. In the future, you can avoid detours when using and purchasing.


   1. Slow discharge. The battery discharge speed also has a great influence on the battery life. Slowing down the discharge speed as much as possible during use will greatly extend the battery life. In order to slow down the discharge speed of the battery, electric vehicles can increase the number of batteries and slow down the travel speed. For example, it turned out to be a 48-volt battery, you can add a battery to make the battery reach 60 volts, but this increase is not to increase the speed, but to slow down the discharge speed, so it must be equipped with a speed regulator that adjusts the speed of the electric vehicle. Under normal circumstances, use the low-speed gear as much as possible to travel, so that the discharge speed can be greatly reduced, which can greatly extend the service life of the battery.

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   2. Prevent the electrolyte from flowing out. There is electrolyte in the battery. When charging, the battery will electrolyze hydrogen and oxygen. Since the battery is a relatively closed space, the internal pressure will increase. When the electric car is running, the electrolyte will splash into the battery. At the side of the liquid hole, under the pressure of air pressure, the electrolyte will flow out of the battery more or less. It is necessary to clean the electrolyte on the battery surface regularly to prevent the electrolyte from flowing out. The direct consequence of the outflow of electrolyte is to corrode the electric screw and increase the resistance of the circuit, which is very harmful.

   3. There must be a deep discharge at a certain interval. After you have configured a slow charge and slow release system, and often use the ready-to-use charging method, and only run short distances for a long time, you need to perform a deep discharge every month. Note that you must perform a slow charge after the deep discharge until fully charged. reuse.


  4. Adjust the balance. The batteries in electric vehicles are in groups, and the capacity of each battery is required to be as consistent as possible, so as not to cause long-term overcharge and overdischarge between the batteries. The balance adjustment should be carried out every three months to make the voltage consistent. The adjustment method is tested with a multimeter, with one or more 12-volt chargers, and a 100-watt incandescent lamp. The multimeter is to detect the consistency of the voltage, charge the battery with low voltage separately, and discharge the incandescent lamp with too high voltage. This process is very time-consuming, and requires hands-on operation skills and relevant professional knowledge. Pay special attention: people who do not understand relevant knowledge must not perform this operation, because the failure of this process will be very dangerous. If you have the brain, you can design a simple balance adjuster. I have designed it but I have no accessories to do it. However, this kind of balancer is sold in the market, but the price is slightly more expensive, and the effect has not been tested yet. Another method is to provide one battery with a charger (for a single battery), if possible, and connect the single charge once every other time. This can achieve balance and make the operation faster and more convenient.


   5. Prevent violent oscillation. The active material on the battery plate will expand and become loose during charging and discharging, and it will promote the active material to fall off and damage the battery when it is violently shaken. The riding speed is required to be slow, and it is not suitable to walk in places with many pits. Install a stabilizer to prevent vibration at the place where the battery is placed.

  6, heat preservation and warming. When the temperature is lower than 15 degrees in winter, the battery should be equipped with a heat preservation device. The low temperature is very harmful to the battery, the specific reason is not mentioned, here is how to keep warm. Add a layer of electric blanket pad outside the battery. There are small electric blanket pads on the Internet. Buy one on the Internet. It is best to choose an adjustable power. Use low power to heat the electric blanket, but you must pay attention to waterproofing. If you connect another power plug (computer power cord computer terminal) to the electric blanket pad, you can use the electric vehicle power supply to heat yourself when there is no external power supply. When the battery is warmed, you must pay attention: the water evaporates faster after warming, and it is necessary to check and replenish in time, and check once every half a month.

  7, waterproof. The positive and negative terminal screws of the battery are easy to corrode and rust when there is water, and the discharge will be accelerated when there is water on the surface of the battery.

   8. Replenish water in time. After a lead-acid battery is used for a period of time, the electrolyte in the battery will lose water due to electrolytic evaporation. If the water is not replenished in time, the battery capacity will decrease and it is difficult to reach the rated voltage during charging. At this time, charging may easily cause bulging or even fire. Especially in the summer and autumn high temperature seasons, timely replenishment is especially important. After the battery is short of water, the electrolyte concentration will increase, which is also a damage to the battery life. The supplementary water is generally battery-specific electrolyte. Distilled water can also be supplemented intermittently, but tap water must not be used. When replenishing water, it must be appropriate. When there is a layer of water on the surface of the battery, it must not be filled, because the electrolyte is dilute sulfuric acid, and it will cause corrosion of the external parts of the battery and cause pollution. Battery replenishment is the most direct counterpart method to prevent charging bulges. Now some manufacturers in the market have built a silicone battery to prevent users from adding water, which makes it inconvenient for everyone to add water. Everyone stays away from this battery. This kind of company does not want to go far, so let it Go away sooner.

   9. Prevent high temperature. When the battery is used and stored, it should not be placed in an environment above 40 degrees. If you use an electric car to run a long distance in the summer, you can give the battery a break in the middle. If the temperature is high in summer and autumn when the sun is big, it is not advisable to place the electric car in direct sunlight.

  10. Try to use the battery once a day. If the battery is not discharged or charged, its battery capacity will decrease. Use and charge every day to make the battery handle the active state, which is conducive to the extension of battery life.

  11. The scientific method to speed up charging: In daily life, what people need is fast charging speed, and there is a contradiction here, charging faster, battery life is short. There is a good solution: increase the number of batteries. Suppose you use a battery that does not damage the battery and the charging current is 0.2A. If you have 10 batteries, the charging current is 2A. If you have 20 batteries, your charging current is 4A, so you can achieve fast charging. .

   Zhengzhou Kanglida Electronic Power Supply Co., Ltd. was established in 2000, specializing in the development, production and sales of 4 series of 2V, 4V, 6V, 12V maintenance-free lead-acid batteries and electronic chargers. Products are widely used in anti-theft alarm systems, fire alarm systems, building intercom systems, elevator emergency evacuation systems, emergency lights, attendance machines, sprayers, electronic scales, children's electric motorcycles, cartoon inflatables, car washers, table turntables, parking locks, Strobe lights, traffic lights, DC screens, solar energy, wind energy, UPS, EPS and other backup power systems, if you choose a company, you must choose a company with guaranteed reputation and quality. This company has been operating for many years and has many years of experience. Experienced company, so if you need this, you may wish to contact us, I believe it is a good choice.


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Key words:leadacidbattery,electricscalebattery,deepcyclegelbattery

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