As the demand for electric vehicles and energy storage systems continues to grow, lithium batteries have gradually become a mainstream choice as an efficient, reliable and environmentally friendly energy solution.
Among the many battery specifications, 72V lithium batteries are increasingly favored by electric vehicles, electric scooters, various industrial equipment and energy storage systems due to their excellent performance and adaptability. In this blog, we will explore the advantages, applications and how to choose a suitable battery system for 72V lithium batteries.
What is a 72V lithium battery?
A 72V lithium battery refers to a battery pack consisting of multiple lithium battery cells (usually lithium-ion or lithium iron phosphate batteries) connected in series, with a total voltage of 72 volts. Typically, a 72V lithium battery is made up of 20 3.6V lithium battery cells connected in series (3.6V x 20 = 72V). This high-voltage battery pack is suitable for applications that require higher power output, such as electric vehicles, electric motorcycles, solar energy storage systems, etc.
The advantages of 72V lithium battery
1. High energy density
72V lithium battery uses high energy density lithium battery technology, compared with traditional lead-acid batteries, it can store more energy in the same volume and weight. This means that devices using 72V lithium battery can provide longer endurance and reduce charging frequency.
2. High power output
72V lithium battery packs provide higher voltages to meet applications that require high-power drive. For example, vehicles and mechanical equipment such as electric motorcycles, electric scooters, and electric forklifts require higher voltages to drive the motor and ensure sufficient power during acceleration.
3. Longer service life
The cycle life of lithium batteries is usually 2 to 3 times that of lead-acid batteries. 72V lithium batteries have a longer service life, generally reaching more than 1,500 charge and discharge cycles, greatly reducing the frequency and cost of battery replacement.
4. Fast charging
Lithium batteries have lower internal resistance and efficient charging characteristics. Compared with lead-acid batteries, 72V lithium batteries can be charged in a short time. Many 72V lithium batteries support fast charging technology, allowing equipment to be put into use more quickly, especially in commercial and industrial applications, reducing downtime.
5. Environmental protection
Compared with lead-acid batteries, 72V lithium batteries do not contain harmful lead and acid substances, so they are environmentally friendly. Its recycling is simpler and conforms to the sustainable development trend of green environmental protection.
Main applications of 72V lithium batteries
1. Electric vehicles
Electric motorcycles and electric bicycles: 72V lithium batteries can provide high power output for electric motorcycles and electric bicycles, support higher speeds and longer driving range, and meet the needs of users in urban travel.
Electric vehicles (EV): In electric vehicles, 72V lithium battery packs are often used as part of the drive battery system, which can provide sufficient power to support long-term driving, especially suitable for medium-sized electric vehicles or electric trucks.
2. Energy storage system
Home energy storage system: With the popularization of renewable energy such as solar energy, 72V lithium batteries are also widely used in home energy storage systems to store solar power for home use.
Commercial energy storage: For commercial energy storage systems that require high power output, 72V lithium batteries can provide stable and efficient energy storage solutions to adapt to various power demand fluctuations.
3. Industrial equipment
Electric forklifts and handling equipment: 72V lithium batteries are widely used in electric forklifts and other industrial handling equipment, providing strong power and longer working hours, improving work efficiency and reducing operating costs.
Drones and robots: Some high-performance drones and robots also use 72V lithium batteries as a power source, providing continuous working time and high-speed operation.
How to choose the right 72V lithium battery?
1. Battery capacity
Choosing the right battery capacity is key to ensuring the normal operation of your device. The capacity of a battery is usually measured in ampere-hours (Ah), which indicates the amount of electricity that the battery can store. For example, a 72V 20Ah battery can provide 72V * 20Ah = 1440Wh of energy, which means it can provide 1.44 kWh of power to the device under ideal conditions. When choosing the capacity, it should be determined based on the power requirements of the device and the expected duration of use.
2. Charging speed
For commercial and industrial applications, charging speed can be very important. When choosing a 72V lithium battery, you need to consider whether it supports fast charging technology and whether the charging time meets the requirements.
3. Battery type
Different types of lithium batteries have different characteristics:
Lithium iron phosphate battery (LiFePO4): It has higher safety and longer cycle life, suitable for long-term use, especially in electric vehicles and energy storage systems.
Ternary lithium battery (NCM / NCA): Higher energy density, suitable for scenarios that require smaller size or higher power output, but higher cost.
4. Brand and quality
Choose a brand with reliable quality and good reputation, and ensure that the battery pack has safety designs such as overcharge, over discharge, and over-temperature protection. In addition, after-sales service and warranty period should also be considered to ensure the long-term stability and safety of the battery.
As an efficient and reliable energy solution, 72V lithium battery is changing the power supply mode in various industries. From electric vehicles to energy storage systems to industrial equipment, it has become an indispensable part of modern applications due to its advantages such as high energy density, long life and fast charging. With the continuous development of technology, the cost of 72V lithium battery is also gradually decreasing. It is expected that more fields will choose this green and efficient power solution in the future.