With the continuous increase of people's awareness of environmental protection and the strict introduction of strict emission regulations, energy-saving and environmentally friendly pure electric aerial work platforms have gradually been recognized and favored by domestic and foreign markets. The battery is the power source and key electrical components of the electric aerial work platform. It is related to the use performance and operation safety of the equipment. Therefore, it is very important to perform daily maintenance of the battery. The traction batteries used in electric aerial work platforms are generally ordinary lead-acid batteries. Its main advantages are stable voltage and high cost performance. In daily use and maintenance, the following aspects can be done well to effectively extend the battery life.
1. Routine inspections cannot be ignored
The top of the battery and the terminal connection should be dry and clean, free of dust and corrosion, so as not to cause leakage or short circuit failure. If the surface of the battery is dirty, use a wet cloth or a brush to clean the battery top, terminals, and connection parts with a mixture of baking soda and water, and wipe them with a cloth to prevent the cleaning solution from entering the battery.
Check the battery cables, terminals, and wires for damage, and check whether the junctions of the battery terminals and the connections to the wires are oxidized and corroded. Clean and replace them as soon as you find them. At the same time, check the battery cover for deformation and heat, and handle it in a timely manner.
It is recommended to check the battery level once a week. If the electrolyte level is too low, battery plates and separators will be damaged, resulting in shortened battery life. The method of observing the liquid level of the electrolyte is as follows: Lift the liquid adding cap and check the liquid level. If it is lower than the bottom platform in the liquid adding cap, the liquid level is too low. If the liquid level is parallel or slightly higher than the uppermost platform in the dosing cap, it is a suitable position.
2.Fill the battery regularly
Generally speaking, if the electrolyte liquid level is 10mm higher than the plate electrode, it means that no liquid is added. If the electrolyte level has not passed the plate electrode, distilled water or deionized water should be added. If too much distilled water is added, the electrolyte will overflow, which will corrode the battery case and cable, which will affect the battery life.
The frequency of dosing depends on the purpose and operating temperature of the battery. Generally, the longer the battery is used, the more frequently the liquid is added. Before adding liquid, remove the vent cap to fully charge the battery. If the battery plate has been exposed to the liquid surface, add water to the electrode plate just before charging, and then charge and add distilled water. After filling, the vent cap needs to be reinstalled on the battery.
3 Charge the battery in strict accordance with the specifications
The battery should be fully charged after each use. Do not discharge more than 80% of the capacity within 5 hours. Charge the battery when the capacity is between 35% and 80% of the rated capacity. Lead-acid batteries do not have a memory effect, so they do not need to be fully discharged before recharging. Recharge the new battery after 3 to 4 hours of use. The battery will emit gas (bubble) at the end of charging, so you need to charge in a well-ventilated area without open flames around it. Also pay special attention not to charge non-rechargeable batteries.
4 Attention to battery storage
Fully charge the battery before storing it. Store the battery in a cool, dry place protected from the weather. Disconnect the device before storage to eliminate the potential danger of battery leakage. The battery will gradually discharge itself during storage. Monitor the electrolyte specific gravity or battery voltage every 4 to 6 weeks. If the battery capacity is less than 70%, recharge it once. Stored batteries should be recharged before installation.
5 Pay attention to safety during maintenance
Wear protective work clothing, protective gloves, and goggles when inspecting and maintaining the battery. Do not store any maintenance tools or other metal objects on the surface of the battery. The temperature of the battery should not exceed 60 ℃ during use. Keep the battery away from sparks, flames and metal objects. The electrolyte should be splashed on the skin or the eyes should be rinsed with plenty of water. If necessary, it should be treated by a professional doctor. If the electrolyte is spilled on the clothes, remove the clothes, rinse with water and then wash with weak alkaline soap. When the electrolyte leaks to the outside, it can be neutralized with lime, strong carbonated soda or carbonated soda, and rinsed with a lot of water.
