The new energy market is developing rapidly, the technology of lithium batteries is improving rapidly, and the price is falling, which has caused a heavy impact on the lead-acid battery market. After analyzing and calculating, lithium batteries have more advantages in terms of comprehensive cost, and they are more convenient to use, can be charged at any time without damaging the storm, and their weight and volume have been reduced by half. In the past, lead-acid batteries used in electric forklifts, electric trolling motors, golf carts, etc., have turned to lithium batteries. Lithium batteries have many advantages, The market needs safe, reliable, and high-quality products, so how to choose lithium electric forklift batteries? Please read the following guide.
1. The first and foremost point of a quality lithium battery pack is that you must figure out the manufacturer's brand, scale, technical strength, and philosophy. Committed to building a well-known brand, obsessed with quality products, focusing on reputation and scale, large investment in research and development, and industry experience. If we follow these terms to understand the technical strength and brand influence of the production manufacturer, etc.....
2. Focus on the main components of the lithium electric forklift battery: the cell. The lithium cell is the main body of the battery to store electric energy, and the cell quality is directly related to the good or bad of the lithium battery pack. The requirements of lithium electric forklift battery and electric car lithium battery are very close, so lithium battery cell becomes the best choice for electric forklift. The rapid development of new energy vehicles, the automotive lithium battery technology, and safety, production have also greatly improved, providing an adequate source of lithium electric forklift battery. There are a lot of unscrupulous merchants in the market who use dismantled or recycled battery cells and sell them directly without testing. The performance, quality, and safety of these batteries are not guaranteed.
3. BMS is also an important part of the lithium battery pack, which contains basic protection and auxiliary functions. BMS ensures the safe application of lithium batteries through charging, discharging, short-circuit protection, etc. Therefore, reputable manufacturers will choose the BMS with full functions and good quality to eliminate potential safety hazards. If the battery is not in the standard discharge cut-off voltage suddenly becomes zero volts, but gradually declines, which is no BMS in it. Of course, you can also directly open the battery pack to see if there is a BMS inside.
4. Active equalization is the second main function that BMS needs to provide. Forklift lithium batteries usually consist of multiple lithium cells connected in series. If the lithium battery lasts for a long time, the consistency deviation between the cells will be accumulated, resulting in a high voltage difference and a rapid decrease in capacity, which cannot discharge. Forklift lithium batteries usually have 150Ah or more, and the BMS provides an active equalization function. Active equalization technology uses an energy transfer method to equalize, which does not produce heat, while passive equalization is the high voltage of the cell through the heat resistance part of the power consumption, so the obvious difference between them is the battery work with or without heat.
5. The matching charger is an indispensable consideration. Some battery fire accidents happen because of the charger. Charger design and materials are strict, good quality charger is fully functional, safe, and reliable, the use temperature will not be too high, and long service life. Many people will have questions: lithium batteries be charged with lead-acid battery chargers? The difference between the two charging mechanisms is very clear, lithium batteries generally constant current and constant voltage charging method or three-stage charging, and lead-acid battery chargers use a pulse charging method, so they cannot be abused. From the point of view of long-term safety and stability, lithium batteries must still use a special charger.
6. Get to know your forklift brand, specification, and model. When choosing a lithium battery, you need to check the battery voltage (V) and capacity (Ah); the size of the battery case; the weight of the battery, and the counterweight, distinctive forklifts have different battery weight requirements;
In summary: In most cases, lithium-ion batteries are more economical, safer, and more efficient than lead-acid batteries for industrial applications; and secondly, LFP batteries will last longer and be more reliable than NMC.