Time:2025-03-01 16:29:01
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Problem 1: Excessive discharge - the "invisible killer" of batteries
Phenomenon: Battery voltage for a long time below 10.5V (12V battery), plate lead sulfate crystallization hardening, capacity irreversible attenuation.
Solving tips:"20% rule" : the depth of discharge (DOD) is controlled within 80%, and the remaining power is ≥20%.
Install a low voltage protector: set an automatic power off threshold (such as 10.8V) to avoid deep discharge.
Problem 2: Sulfation - the culprit of shortened life
Phenomenon: Battery for a long time or long-term insufficient charging, the surface of the plate forms white lead sulfate crystals, internal resistance increases.
Solving tips:Pulse repair technology: The smart repair charger is used to decompose crystals through high-frequency pulses (1 maintenance charge per month is recommended).
"Full charge storage" principle: When idle for more than 7 days, be sure to fully charge and disconnect the load.
Problem 3: Electrolyte imbalance - the double risk of drying and spilling
Phenomenon: Too low liquid level leads to plate exposure oxidation, too high causes leakage corrosion.
Solving tips:"Liquid level calibration method" : Periodically check the height of the electrolyte and maintain it between the highest (MAX) and the lowest (MIN) scale line.
Distilled water supplement: Add only distilled water (never tap water or electrolyte) and check every 2 months in summer.
Problem 4: High temperature environment - every 10 ° C increase, life is halved
Phenomenon: When the ambient temperature is > 35 ° C, the battery self-discharge rate doubles, accelerating plate corrosion.
Solving tips:Physical cooling method: Install a cooling fan or heat shield to ensure air circulation around the battery pack.
Intelligent temperature control BMS: The charger with temperature compensation function is selected to automatically adjust the charging voltage (temperature coefficient: -3mV/℃/ single cell).
Problem 5: The charging method is wrong -- "fast charge" ≠ "good charge"
Phenomenon: High current fast charging leads to battery heating, plate deformation, long-term use capacity plummets.
Solving tips:Three-stage charging method:
1, constant current charging (current ≤0.1C) → 2, constant voltage charging (14.4-14.8V) → 3, floating charging (13.5-13.8V).
Reject "mixed charger" : strictly match the rated voltage and current parameters of the battery.
The ultimate rule of Life extension: 3 Daily habits
Monthly inspection: Check voltage, liquid level, and terminal corrosion, and set up maintenance logs.
Annual deep maintenance: Professional equipment to detect internal resistance and capacity, if necessary to replace the aging monomer.
Cycle activation: The long-lived battery is charged and discharged once every 3 months (10% depth can be).
Conclusion
The life of lead-acid batteries not only depends on product quality, but also is closely related to user maintenance habits. By avoiding the above five "short-life traps" and implementing scientific maintenance programs, the life of ordinary batteries can be extended by 30%-50%, significantly reducing the overall cost of use. For customized maintenance solutions or technical guidance, please contact us!
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