The charger for an electric vehicle with a 48V battery (usually a switching power supply) is designed to accommodate batteries of different capacities (usually between 14 amp hours and 20 amp hours). the charging current is set to 1.8A, the electric power at this time is about 110W.
Different models of electric vehicle chargers have different power ratings, usually 220 W. When charging the electric vehicle charger, plug in the battery first, then add AC power; when sufficient, first turn off the mains power and then disconnect the battery. If you first disconnect the battery when charging, especially when the charging current is large (red light), it is very easy to damage the charger.
Commonly used switching power supply chargers are divided into two categories: half-bridge type and half-bridge typesingle excitation. The single excitation type is further divided into two categories: forward type and flyback type. The half-bridge type has high cost and good performance, and is often used in negative pulse chargers; single excitation type has low cost and high market share.
The most common car battery chargers are 120W (48V 10~14Ah) and 180W (48V 17~22Ah). The electric vehicle charger with 48V battery is suitable for batteries of different capacities (generally between 14 Ampere hours and 20 Ampere hours). The first stage charging current is set at 1.8 Ampere, and the electrical power at this time is approximately 110 W). .
In the second stage (when charging to nearly 90% capacity), the charging current is about 0.5-1A and the electric power is about 60W at that time until it is fully charged, the power; the consumptionis around 10W when it goes into trickle charging. As for the time required for a single charge, it is linked to the degree of discharge of the battery and its condition. It takes approximately 8 hours for a new 14Ah battery to be fully charged after being completely discharged.
How far can a 72v20a lithium battery car run?
The 48 volt, 25 amp hour battery has a storage capacity of ( 48*25=1200) One thousand two hundred watt hours. On a flat kilometer in windless weather, drive at a speed of about 20 kilometers per hour. When you encounter a red light, try to coast without braking, start slowly and brake as little as possible. Two-wheeled light electric vehicles can have a range of around 120 kilometers, and three-wheeled light electric vehicles can have a range of around 70 kilometers. Increase speed to around 35 kilometers per houreure reduces cruising range by more than 40%.
Is it better to choose a lithium battery electric vehicle or a lead acid battery electric vehicle?
The price of 72v20ah lithium battery is about 1,500 yuan. Lithium battery price varies greatly from ternary lithium battery to ferrophosphate battery. For specific information, you can check JD.com, Taobao, etc.
The range of electric vehicles is not only linked to the capacity of the battery, but also to the power of the engine. Suppose the motor power of this 72V electric bike is 1500 watts. According to calculations, the theoretical range is 100 kilometers. However, in reality, factors such as road conditions and resistance must be taken into account. The actual range of an electric vehicle with a capacity of 72 V is only 70 or 80 kilometers.
Main advantages:
From an objective point of view, battery cars bring great convenience to the life. Traffic jams are common and having a lightweight battery-powered car is the best choice for running errands at home and going out to buy groceries.
It is precisely because of the outstanding advantages of electric vehicles that so many people choose to buy them. However, when there are more people, accidents happen easily. No, many road accidents involving battery-powered vehicles are shocking.
Although there are many types of batteries on the market today, including nickel batteries, zinc batteries, lithium batteries and lead acid batteries, and even new technology graphene batteries in recent years. , but lead-acid batteries and lithium batteries are mainlywidely used in electric vehicles. Lead-acid batteries are the most widely used and have the longest lifespan, while lithium batteries are a rising star and have been favored by many models in recent years. So, let's choose When it comes to electric vehicles, is it better to choose a lithium battery electric vehicle or a lead acid battery electric vehicle? The old master tells you, you will know after comparing these 4 aspects.
Cost comparison between lithium batteries and lead-acid batteriesIf we only look at the price when buying a car, lead-acid batteries are the first choice, because the price Lead-acid batteries are generally less than half that of lithium batteries. Additionally, once lead-acid batteries are discarded, they still have a high recycling value, which is estimated to be around a quarter of the purchase cost. Howeverant, lithium batteries basically do not have a high recycling rate. value, and most companies will not recycle them.
Technical comparison between lithium batteries and lead-acid batteriesIf you are considering batteries with more mature technology, lead-acid batteries may be your first choice. Lead-acid batteries have been used for a hundred years. and the technology can be considered very mature. Although lithium battery technology is relatively mature, it is still a relative newcomer compared to lead-acid batteries. In addition, all electric vehicles that spontaneously ignite are basically lithium batteries, which shows that it still exists. certain disadvantages in the maturity of the technology.
Parameter comparison between lithium batteries and lead-acid batteriesThe above two points show that lead-acid batteries have the advantage, and bothThe following points are the main reasons why lithium batteries can become a rising star. According to the parameter comparison, the first choice is the battery capacity: lithium batteries have higher average voltage and capacity density than similar batteries, lithium batteries have larger capacity and number full charge and discharge time of lithium batteries exceeds 500 times. The number of full charge and discharge times of lead-acid batteries is about 350 times. In other words, lithium batteries will be even more disabled.
Practical comparison between lithium batteries and lead-acid batteriesFor batteries of the same size, lithium batteries are more than half lighter than lead-acid batteries. Nowadays, light electric vehicles use lithium batteries, which are very popular. among young people,people love it, and lithium batteries also have the advantages of longer life and faster charging. This is also the main reason why many people say that lithium batteries are better than lead acid batteries.
After listening to some comparisons between lithium batteries and lead acid batteries by the master, I believe you already have a suitable battery choice for you. In fact, since these two batteries can stand out among many batteries, it means that they are both toolWe have certain advantages, and there is no better one. We simply choose the one that suits us based on our own needs. The one that suits us best is the best.