Tags: How to solve the swelling of lead-acid batteries
There are several reasons for the swelling of lead-acid batteries. First, the safety valve is not exhausted smoothly. 2. The battery management program chip parameter design of the switching power supply system is inconsistent with the use characteristics of the gel battery. 3. The temperature sensing line of the colloidal battery compartment is not connected, causing the system to fail to switch from equal charge to floating charge when the temperature reaches 40°C. Fourth, the battery has poor ventilation. How to solve it? 1. In order to shorten the equalization time and avoid battery swelling caused by overcharge, reset the equalization and float charge conversion conditions, and change the original set current value of 10mA/Ah as the equalization conversion condition to the system when the current value drops to 20mA/Ah That is, it will automatically switch to floating charge operation. 2. Connect the temperature sensor of the switching power supply to the battery cabinet, so that the floating charge voltage of the switching power supply can be adjusted with the ambient temperature. Increase the over-temperature protection, when the temperature reaches 40 ℃, the system will automatically switch to floating charge operation, to avoid continuous high-current charging caused by battery bulging. 3. In order to prevent the battery from overcharging and shorten the equalization protection time, the equalization protection time is changed from 18 hours to 10 hours (the equalization protection time is set to prevent battery thermal runaway, when the equalization current cannot be reduced to the set equalization When the current value of floating charge is changed, the system will be forced to change to floating charge within the specified time).
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