How many volts are the batteries of electric vehicles
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2023/04/29 14:50:15
The nominal voltage of a single battery of electric vehicle is 12V and 16V at present, and the nominal voltage specifications after combination are 36 (3×12) V, 48V (4×12 or 3×16), 60 (5×12) V, 64 (4×16) V, 72 (6×12) V, 80 (5×16) V, etc.
Electric vehicle battery single voltage is generally 12V, 16V, 18V, the national standard electric vehicle battery is generally 36V12AH, 36V20AH, 48V12AH, 48V20AH. Due to the electric vehicle national standard for electric vehicle weight has clear requirements, can not exceed 55KG, and the battery weight occupies a large part of the vehicle weight, so can only install 36V12AH, 36V20AH, 48V12AH, 48V20AH battery. 36V is a series of three 12V batteries, 48V is a series of four 12V batteries or three 16V batteries.
Electric moped DZM series, models are mainly 6-DZM-12, 6-DZM-20, 6-DZM-25, 6-DZM-28, 6-DZM-30,? 8-DZM-20, 9-DZM-21, etc
For example, the specific meaning of 6-DZM-20 is as follows: 6- represents the number of battery cells in series, which is 12V battery. DZM- Sealed battery for electric moped. 20-2 hour rate Rated capacity, 20Ah.
Further information:
Battery, as the power source of electric vehicles, has been regarded as an important landmark technology for the development of electric vehicles, but also an important bottleneck restricting the development of electric vehicles. Its performance is directly related to the length of vehicle driving range.
Broadly speaking, battery can be divided into three categories: chemical battery, physical battery and biological battery. Chemical battery and physical battery have been used in mass production of electric vehicles, while biological battery is regarded as one of the important development directions of electric vehicle batteries in the future.
Chemical battery
Chemical battery is the most widely used battery type in the field of electric vehicles, such as nickel metal hydride battery, lithium ion battery, lithium polymer battery, fuel cell, etc., belong to this category. From the perspective of structure, it can be further divided into two categories: battery and fuel cell. Most electric vehicles we have seen so far are driven by battery technology, such as Toyota Prius and Tesla MODELS (reference, picture, inquiry). Of course, the battery here is not our daily car battery, but the general name of the rechargeable battery, which is usually used in the car battery lead-acid battery is just a subdivision of the category.
Lithium battery
Lithium battery is one of the most commonly used batteries in electric vehicles. Although it has not been around long since its birth in 1970, it has quickly occupied the majority of the electric vehicle battery market due to its characteristics of high energy density and long cycle life. Today, electric vehicles on sale equipped with lithium batteries mainly include lithium iron phosphate battery and lithium ternary battery two kinds
Physical cell
Physical batteries, as the name implies, are collectively referred to as batteries that rely on physical changes to provide and store electrical energy, such as supercapacitors and flywheel batteries, which belong to the family members of physical batteries.
The nominal voltage of a single battery of electric vehicle is 12V and 16V at present, and the nominal voltage specifications after combination are 36 (3×12) V, 48V (4×12 or 3×16), 60 (5×12) V, 64 (4×16) V, 72 (6×12) V, 80 (5×16) V, etc. You can choose according to your use.
Volts represent the output voltage of the battery pack;
Amperage represents the amount of power in the battery pack. A is short for "A", actually it should be "Ah".
For example: volts is equivalent to the volume of a car engine (cylinder), the bigger the power, such as similar car engine, 2.2 litres more power than 1.8 litres, but more oil (battery pack is wasted). The amperage is the equivalent of a car's gas tank. The bigger the tank, the more miles you can travel on a full tank (equivalent to a full battery pack).
In addition, the battery pack with a large number of volts has a large charging voltage (not this output voltage, the specific battery pack will be marked); If the output voltage of different battery packs is the same and the core material is the same, the larger amperage generally requires longer charging time.
Electric car battery is as big as the number of volts is not the same, the high voltage runs far. The rated voltage of the motor determines the number of battery voltages. When the voltage is high and the motor power is the same, the working current of the motor is small and the discharge time is long. P=U*I, the one with more batteries is far away.
It has nothing to do with running fast, speed is determined by power, who has the most power, who is fast.
They're all 20 amp batteries. I heard that high volts consume more power. So 48 volts is more durable?
The voltage is large, the current is small, the loss on the useless resistance is small, R*I^2, the UPS voltage in the computer room is 96V or 108V
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