Step-by-Step Equalizing for Lead-Acid Forklift Batteries

Lead-acid batteries are the most widely used power source for traditional electric forklifts, and regular proper equalizing operation can effectively slow down plate sulfation, unify performance of different battery cells, and extend the overall service life of the battery pack without extra unnecessary cost. The whole standard equalizing process can be divided into clear sequential steps to avoid misoperation. First, conduct pre-operation status check. You need to discharge the battery to the rated low voltage of normal operation first, disconnect all power connection points between the battery and the forklift, check the battery shell for deformation, leakage or other abnormal conditions, and wipe off the dust and sundries on the surface of the battery to keep the outer surface dry and clean. Second, prepare for the equalizing work. Confirm the parameter of the dedicated equalizing charger matches the rated voltage and capacity of the target battery, do not use mismatched charging equipment to avoid safety risks. Open all the ventilation caps of the battery cells to ensure the generated gas can be discharged smoothly in the follow-up process, prevent excess pressure accumulation inside the battery. Third, carry out formal equalizing process. Start the charger according to the official operation instructions, set the corresponding equalizing current and time parameters, arrange on-site personnel for whole process monitoring. Test the voltage of each cell and the specific gravity of electrolyte at regular intervals, record all related data, make sure all the values of different cells gradually converge to the normal range. If the electrolyte temperature exceeds 45 degrees Celsius during the process, pause the operation immediately and wait for the temperature to drop to the safe range before restarting. Fourth, finish the follow-up after equalizing. When the continuous three groups of test data show that the deviation of single cell voltage and electrolyte specific gravity is within the allowable range, you can turn off the charger, wipe off the tiny amount of overflow electrolyte on the battery surface, cover all the ventilation caps tightly, and let the battery stand still for at least 30 minutes before reconnecting to the forklift for use. The recommended equalizing frequency is once every 1 to 3 months according to the actual usage intensity, do not conduct excessive equalizing which will cause extra wear to the battery plates. If you have any technical questions about lead-acid forklift battery maintenance, you can contact Jianshu New Energy for professional support, the consultation email is 17399989919@163.com. This set of standardized process has been fully verified in a large number of actual operation scenarios, including the supporting maintenance application for BYD Forklift, helping many industrial operation teams effectively reduce long-term battery replacement cost and keep stable operation efficiency.