Lead-acid battery in the field of electric forklift: key points of selection analysis

Time：2025-03-27 16:56:02

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In the field of electric forklift, lead-acid battery is the key power source, and its proper selection is directly related to the operation efficiency, maintenance cost and service life of forklift. In the face of a wide range of lead-acid battery products on the market, enterprises need to accurately grasp the selection points in order to match the most suitable "power heart" for electric forklifts.

## Capacity adaptation is the cornerstone

The working intensity and running time of the electric forklift determine the capacity of the lead-acid battery required. The frequency of forklift operation varies greatly under different working conditions. For example, in a large logistics warehouse, forklifts may need to carry goods all day long. Such high-intensity operation scenarios require batteries with large capacity to meet the long-term continuous power supply demand. The capacity can usually be estimated based on the motor power of the forklift and the estimated operating time. If the forklift motor power is 10kW, the plan is to work continuously for 8 hours, taking into account the energy conversion efficiency (general lead-acid battery charging and discharging efficiency of 70%-80%), the required battery capacity is at least: 10kW×8h÷75%≈107Ah. Of course, the actual selection also needs to reserve a certain amount of surplus to cope with sudden situations and battery performance attenuation, it is recommended to choose a 120Ah or higher capacity battery, to ensure that the power of the forklift is durable and stable in busy operations, to avoid frequent interruption of work due to insufficient power, affecting the logistics flow efficiency.

## Voltage matching is key

The electrical system design of electric forklift determines the suitable lead-acid battery voltage. The driving motor and control system of the forklift truck have specific rated operating voltages. If the battery voltage is not matched, the performance of the forklift truck may be degraded, and the electrical equipment may be damaged. Common electric forklift voltage is 24V, 36V, 48V and other specifications. In the selection, be sure to carefully consult the forklift equipment manual to clarify its rated voltage requirements. For example, an electric forklift with a rated voltage of 48V, if the 36V battery is mistakenly selected, the motor cannot obtain enough torque when the forklift starts, and the running speed is slow and easy to overheat; On the contrary, if the battery is higher than the rated voltage, the high voltage will overload the motor and controller and shorten the service life of the equipment. Only by strictly ensuring the perfect match between the voltage of the lead-acid battery and the electrical system of the forklift can the components of the forklift operate in coordination and play the best performance.

## Discharge characteristics meet the needs of the operation

In the process of transporting goods, the working conditions of electric forklift are complex and changeable, sometimes climbing with full load and sometimes driving fast, which puts forward strict requirements on the discharge characteristics of lead-acid batteries. Good discharge characteristics mean that the battery can output power stably under different loads. At the moment of forklift starting and climbing with full load, the battery needs to provide a strong current in a short time, and the lead acid battery with excellent discharge performance at high rate is more advantageous. Such as the use of new plate materials and technology of the battery, can release large current in a short time to meet the forklift instantaneous high power demand, to ensure that the forklift start quickly, climbing strong. At the same time, during the continuous operation of the forklift, the battery should have a stable discharge curve to maintain the stable voltage output, ensure the uniform speed of the forklift, avoid the unstable loading and unloading of goods due to voltage fluctuations, and improve the safety and stability of the operation.

## Life and reliability cannot be ignored

Electric forklifts are frequently used and lead-acid batteries are frequently charged and discharged, so battery life and reliability are crucial. The long life battery can reduce the frequency of replacement and reduce the overall cost of use. In general, lead-acid batteries using high-quality raw materials and advanced manufacturing processes have longer cycle life. For example, the battery with high-purity lead plate and special electrolyte formula can be charged and discharged more than 1000 times, which greatly extends the service life of ordinary batteries. In terms of reliability, it is necessary to pay attention to the sealing performance of the battery. A good seal can prevent electrolyte leakage, reduce water evaporation, ensure the stable chemical reaction inside the battery, and reduce the maintenance frequency. In the harsh working environment such as high temperature and high humidity, the reliable battery can maintain stable performance, reduce the probability of failure, and ensure the continuous and efficient operation of the forklift.

## Size and weight consider installation space

The space inside the electric forklift is limited. The size and weight of the lead-acid batteries must fit the battery installation area of the forklift. The size is too large to install smoothly; Excessive weight will increase the overall load of the forklift and affect driving performance and maneuverability. In the selection, it is necessary to accurately measure the length, width and height of the forklift battery bin, and consider the battery installation method (such as vertical and horizontal), and select the battery with the appropriate shape and size. In addition, it is necessary to weigh the weight of the battery and the carrying capacity of the forklift to avoid the instability of the center of gravity of the forklift due to the excessive battery, which affects the safety of driving. For example, for small electric forklifts operating in narrow channels, small and light lead-acid batteries should be used to ensure flexible operation of the forklift while ensuring power supply.

The selection of lead-acid battery in the field of electric forklift is a systematic project, which needs to consider many factors such as capacity, voltage, discharge characteristics, life reliability, size and weight. Only by accurately grasping these points, enterprises can select lead-acid batteries with excellent performance and high adaptability for electric forklifts, improve the operation efficiency of forklifts, reduce operating costs, and seize the opportunity in logistics and other fields.

Statement: The articles on this site are written by the GSGT team or reprinted from other media or compiled by AI.No reproduction without permission.For copyright or other issues, please contact:gsgtpower@163.com.

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