The heat is unbearable. Forklifts may have various abnormal problems, such as: in the summer, customers are asking "Why my lithium electric forklift has become less durable?" Charging more often? How is the lithium battery temperature too high?" Today, we will briefly introduce the common problems encountered by lithium battery forklifts in high temperature mode and the solutions.

Highlight!

The most important thing to pay attention to in the daily use of lithium batteries in summer is the temperature of lithium batteries.

Q1: Why do lithium batteries heat up?

The principle of lithium battery determines that heat will be generated during charging and discharging (use). When the battery pack is in the case of light load charging and discharging, the battery is always in the dynamic balance of heat and heat dissipation; However, when the battery is continuously charged and discharged with high load, or in a high temperature environment, the heat accumulation exceeds the rate of natural cooling, the battery temperature will gradually increase, and the battery may be hot.

Q2: What is the best operating temperature for lithium batteries?

The best operating temperature of lithium batteries is 15 ° C ~45 ° C, and working at the appropriate temperature can make lithium batteries maintain better charging and discharging capacity.

What conditions can cause the battery temperature to rise:

✔ High temperature environment: high temperature conditions or high temperature weather in summer, especially in the southern region;

✔ Heavy working conditions: heavy goods and continuous operation for more than 12 hours, such as in the paper industry, beer and beverage, chemical, chemical fiber and other large shipments, heavy goods industry;

✔ High charge and discharge frequency: the lithium battery capacity selection of forklift truck is small, and the domestic demand for continuous charge and discharge many times a day, easy to lead to battery heating.

Q3: What are the recommendations for the use of lithium batteries in high temperature environments?

Since the lithium battery temperature will affect the charging speed and long-term battery life performance, it is recommended that customers take the following measures:

✔ Reduce the temperature of the working environment of lithium electric forklift truck as much as possible, such as ensuring ventilation and good shading measures;

✔ Reasonable arrangement of vehicle use, give lithium battery enough deactivation, cooling time window;

✔ Increase the number of vehicles for rotation use;

✔ Replaceable models, adding spare batteries for replaceable use;

✔ Use a larger capacity battery to reduce the battery load;

✔ Do not charge in high temperature environment, high dust, salt spray environment;

✔ When charging, keep the surface of the charging interface clean, no particles, dust and other debris in the interface, and regularly clean the dust of the charger vent to ensure the cooling effect of the charger;

✔ In addition to the daily maintenance of lithium battery, it is also necessary to strengthen the daily monitoring and management, recommend the use of Kion - forklift energy management platform EMS, through the remote real-time monitoring of the battery, output battery energy efficiency analysis, battery fault alarm, temperature monitoring, battery health check, etc., to achieve the "energy digital" management of the life cycle of lithium battery.