Tips for using and buying lead-acid batteries for electric bicycles

The use and purchase skills of lead-acid batteries for electric bicycles have become a low-income collective transportation vehicle due to the economic benefits of electric bicycles. The biggest saving of using electric vehicles is the cost of replacing batteries. Generally, when replacing a set of batteries, the warranty period given by the merchant is one year. Under normal circumstances, most batteries can be used for one and a half years. To replace a set of 36v (3 pieces), the price is about 270 yuan, 48v (4 pieces), the price is about 350 yuan, this price is offset by the cost of recycled old batteries. Using the battery for 18 months (550 days), riding 30 kilometers a day, the daily cost of the battery is 0.50 yuan and 0.65 yuan. How to extend the service life of the battery? For low-income collective office workers, use the meaning of reducing family expenses to improve the quality of the day. In summary, there are two aspects: one is correct use and maintenance. Second, replenish the liquid in time to greatly extend the service life of the battery. 1. Correct use and maintenance 1. Slow acceleration. Try to drive at a medium speed as much as possible. The speed is the most energy-efficient and has the least impact on the battery. The author has done experiments, the new battery can travel about 60 kilometers without exceeding the speed of 15 kilometers per hour, assuming a speed of 25 kilometers per hour, it can only travel about 45 kilometers. Don't jump too far on your way. Sudden and large acceleration means that the current discharge of the battery will not only damage the battery board, make the battery capacity drop rapidly, shorten the life span, but also burn the key switch contacts (commonly known as silk tail). 3. Rechargeable battery. The characteristic of lead-acid batteries is that they should be fully charged and stored, and do not wait to be recharged when they are discharged. This will accelerate the vulcanization of the battery plate, rapidly reduce the battery capacity and shorten the life. 4. Make up the liquid. The battery relies on the chemical reaction of a certain concentration of sulfuric acid solution and lead to attack electrical energy. Once the liquid is insufficient, the battery will quickly be thermally damaged during use. Therefore, it is very important to compensate for the liquid in time. Second, buy batteries 1. Choose pure lead-acid batteries. Products with promise should be selected based on the relevant experience of many years of use. The technology of pure lead-acid battery is mature and the quality is guaranteed. There is a so-called high-tech material on the market, the silicone body battery, because the technology is not old, the quality is unstable, and the problem of insufficient capacity has developed. 2. Choose a battery with a positioning groove structure, which can be extracted from the upper cover. Because the battery compensates for the liquid many times, the cover can be drawn out, and the battery with a positioning groove structure can easily open the liquid, and add a liquid plug to the cover for recovery. The upper covers of some batteries are glued together. As long as you use something to pry open when adding liquid, it is easy to pry open and cannot restore the shape. It is best not to choose. Third, add relevant experience skills 1. Compensate the torque of the liquid. The battery is most afraid of water shortage. The new battery will be refilled for the first time after about 8 months from the beginning of use. This period of time is assumed to be just after the hot summer, so water should be refilled after 6 months. After that, compensation will be paid every four to five months. 2. The origin of the liquid. It is recommended to use proppant acid for better results. Regarding the replacement of the battery at each repair point, the merchant generally promises to replenish the battery with free liquid after one year. You can take two empty mineral water bottles and negotiate with the merchant to ask for two bottles of the acid used by the battery manufacturer of this type. The condition is that the merchant will no longer need to add liquid in the future. The merchant is generally willing, because it will not disturb him. When acid is taken home, mark it as acid and keep it away from children to prevent accidental injury. 3. The filling process. When adding liquid for the first time, add this factory-made acid. Each battery has 6 batteries (6 batteries). Add 5 ml of liquid to each battery and cannot be added. The process is to open the battery box, a 50w soldering iron will connect all the wires and solder, and then take out the batteries one by one, line up, open the front cover, and use tweezers to apply glue one by one on the bottle mouth of each case. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: Analyze the selection method of lithium battery charging IC