When the 48V electric vehicle battery is fully charged, the no-load voltage is about 52V-52.8V.
The electric vehicle battery 48 V is made up of four 12 V batteries connected in series. After each 12V battery is fully charged, the no-load voltage is approximately 13V-13.2V, so all four batteries. The no-load voltage is approximately 52V-52.8V.
The battery has a lifespan. As the usage time increases, the no-load voltage will slowly decrease and the capacity will also slowly decrease. If the battery is not used for a long time, it should be fully charged first and then recharged regularly. During the storage process, the battery power will gradually decrease due to self-consumption. If it cannot be replenished in time, it will affect battery performance. It is recommended to recharge it every 1 to 2 months.
Are lithium-ion electric vehicles any good?
The disadvantages of Luyuanzfa are as follows.
Disadvantages: The construction of the shock-absorbing front fork is quite crude and the front brake line seems a bit too long. The assembly process is also not very precise. The gaps between the plastic parts are a bit large and uneven from left to right. The installation position of the battery plug is simply anti-human. To disconnect the battery, you have to lift the battery a bit to expose the plug, which is annoying. The key is that the plug must be inserted upside down.
The indicator is only available at the front, but not at the rear. I have the impression that the indicator at the rear is more important than at the front, which is a shame plus there is a warning. Sound when adding the turn signal. There is no brake light and the rear light can only be turned onthe headlights are always on and only serve as a warning at night.
Pros: The brakes are really good. The front and rear ceramic brakes have excellent wear resistance and high temperature resistance. They have good braking performance and the braking distance is shortened by 30% and the service life is extended. by 5 times.
The seat is also wider and more comfortable, and some details are well done. For example, the string ball outside is not only tied with a tie, but also wrapped with a zipper cloth to protect it, and the seat is also wider and more comfortable. battery details The Phylion 24Ah charger has a good finish and is relatively thick and textured.
Luyuan ZFA body parameters:
Body size: 1535mm*680mm*1050mm. The battery uses a large capacity 48V24AH Phylion lithium battery with allan battery lifet up to 90 km, which can easily meet the needs of commuting and traveling. It also provides two methods of direct charging of the whole vehicle and independent charging by extracting the battery. , making charging more flexible.
This electric vehicle is equipped with a liquid-cooled engine, which reduces engine temperature through liquid cooling to maintain lasting power. It is equipped with ceramic brakes, which shorten the braking distance by 30% and extend the service life by 5 times.
Are lithium battery electric vehicles good? It depends on the specific model and configuration. We cannot generalize. Regarding the detailed description of the problem by the interlocutor, the answer is as follows:
1. Regarding the comparison between the cruising range of lithium batteries and that of batteries lead previously used.
Under the same conditions, in theory, as long asThe capacity and nominal voltage of lithium batteries are equivalent to those of lead acid batteries. Comparing mileage on the same stretch of road and under the same driving conditions, lithium battery electric vehicles are superior to or equal to lead acid battery electric vehicles. . The reason is that the chassis of most lithium battery electric vehicles is about 20% lighter than that of lead-acid battery electric vehicles, and the battery is 30% to 60% lighter (depending on the material). of the cell). The load is reduced and the mileage is naturally longer.
Specific analysis is required in real use. The most commonly used materials in lithium batteries are cobalt-lithium, manganese-lithium, ternary lithium, and iron-lithium. Lithium-cobalt use declinesgradually, let's put that aside.
Performance at different ambient temperatures: When used in winter, the performance of lithium manganese and ternary lithium is zero; better than that of lead acid batteries. Iron and lithium are basically equivalent to lead-acid batteries at around minus 15 degrees Celsius. In the other three seasons, the performance of lithium batteries is better than that of lead-acid batteries.
Lifespan comparison: Under full/discharge conditions, the lifespan of lithium manganese is 500 times, that of ternary lithium is 1000 times and that of lithium iron is 2,000 times. Lead acid battery 350 times. If we look at the years of use by most people, the order is lithium manganese battery for 2 years, Sanyuan battery for more than 3 years, lithium iron battery for more than 5 years, and battlead erie for a year and a half. . (No need to talk about those who run express delivery or deliver fast food. Your frequency of use and mileage cannot be compared to ordinary people, so don't enter into the discussion)
< p> As for the comparison in terms of money, except for iron-lithium Except for the performance-price ratio comparable to that of lead-acid batteries, other lithium batteries fail miserably.
Compared to convenience and lightness when charging, all lithium batteries beat lead acid batteries. Our compatriots understand this very well.
2. Regarding charging and security issues.
The problem mentioned in the question that lithium batteries need to be charged frequently is a false proposition. I would like to ask which electric car can keep driving for a long times without recharging after being recharged once? If you want to charge it as soon as you use it, this will extend the life of the lithium battery and save you money. If it's inconvenient, just spend more money. For lead acid batteries, charging them as soon as they are used until the green light comes on and then stopping charging will also extend their life. If you don't understand or half understand, don't make excuses: let me ask you a question: when a person works alone, should he work until he is almost exhausted and then rest, or should she work for a while and then rest. Which one has a long life?
As for the safety issues, they are all related to the charger, protective board, cell quality, materials, packaging process, environment of use and collisions. The safety of using the fer lithium and manganese lithium is equivalent to that of lead-acid batteries, while ternary lithium is almost the same.
3. Regarding performance and price. As mentioned earlier, lithium iron is the most cost effective and has a long lifespan. Performance dipped in winter, but when the weather warmed up, it returned to full health. I have never driven a new national standard lithium battery electric vehicle, so I can't talk nonsense. However, the two two-wheeled electric vehicles I use both use lithium batteries. One of them is a 48V12AH lithium iron transformed lead-acid battery electric vehicle. I have been using Lianmaoer for 8 years and I can still run 25 kilometers. Do you think this is a good deal or not?
I recently bought a Luyuan brand national standard electric bicycle, 48V24A lithium battery, 3899 yuan. THEprice is relatively expensive, the battery alone costs about 1,600 yuan. The first charge after purchase took about 7 hours. Once fully charged, I drove over 40 kilometers intermittently in 22 days (using an odometer). It is always powered and can travel around 50 kilometers without any problems. Since the speed limit is 25 kilometers, electricity consumption is relatively low. If you use it daily, the mileage may be higher because it uses electricity without leaving it there. The battery weighs 9.8 kg and can be taken home for recharging. The advantage is that it accelerates faster while driving and has better hill climbing ability than my original car with lead acid batteries. This lithium battery is a special support battery for Luyuan Yadi Emma. It does not generate heat when charging (the charger is very hot) and is relatively safe.
Please read the “Instruction Manual” and do not modify the vehicle without authorization.
I was previously confused about this question and didn't know how to choose. Now that I have used both lithium battery vehicles and lead acid vehicles, I can tell you about their characteristics. The main advantage of lithium batteries is that they are lightweight and easy to charge. It is the best choice for users who live in apartment buildings. As for power and battery life, there is no significant difference between the two batteries in hot weather. But during the cold winter season, when the temperature is below 10 degrees, the power of lithium batteries attenuates more significantly than that of lead-acid batteries. If fully charged, the lithium battery will lose about half of its power and the lead-acid battery will lose about half of its power.iron a third. Therefore, in winter, lead-acid batteries are more durable than lithium batteries. Other situations should be easy to understand. How to choose depends on the actual usage needs. Personally, I think it is better to choose lithium batteries.
Lithium batteries are certainly better than lead-acid batteries and are characterized by good safety performance.
Lithium batteries are good, but they are not safe. It is mainly lithium batteries that catch fire when charging.
Dear, you don't actually need to change the car, just change the battery. I can tell you from personal experience that 7 years ago I made a set of 4830 lithium iron phosphate batteries using grade B cells produced by the company I worked for at the time, and EllThey only ended this year. Note that this is product B, lithium iron phosphate. If it is Grade A lithium iron phosphate, it may be able to be used for a longer period. Considering the safety concerns, there is no difference in the choice of iron and lithium phosphate. Lithium manganate may also be considered. For example, lithium manganate from Phylion Power is very good. Three yuan, hum, there is a certain risk of catching fire. Even if it's a one in ten thousand chance, if it happens to others, it's a story, but if it happens to you, it's an accident.
Need experience!
Advantages:
① Great thrust-to-weight ratio. That is to say, at equal power, lithium electric vehicles are lighter.
②The mass-energy ratio is low. That is to say, for batteries of the same quality, lithium batteries are lighter.
③ Large capacity. That is to say, for batteries of the same quality, lithium batteries have a longer lifespan.
Disadvantages:
①High cost
②Complex management circuit < /p>
③A single failure in the battery will cause the entire battery to become unavailable
Very good