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Why can't lead-acid batteries be charged with fast chargers?

Article Source：Kinri Energy | Author：Kinri Energy | Issuing Time：2024.05.12
The reasons why lead-acid batteries are usually not suitable for using fast charging chargers are as follows:


lead-acid battery

Battery structure and chemical characteristics: Lead acid batteries are a mature technology, but their charging and discharging rates are relatively slow. They are typically deep cycle batteries designed for long-term use at low discharge rates. Rapid charging may cause uncontrolled internal reactions in the battery, leading to issues such as overheating, gas generation, and electrolyte loss.

Electrolyte loss: Rapid charging may cause the moisture in the electrolyte to be decomposed into hydrogen and oxygen, resulting in electrolyte loss and affecting battery performance and lifespan.

Temperature control: During rapid charging, the battery will generate heat, while lead-acid batteries are sensitive to high temperatures. Excessive temperature may cause battery damage or failure.

Safety considerations: Rapid charging increases the risk of battery overheating and overcharging, which may lead to battery explosion or leakage, posing a safety hazard.

Therefore, even though fast charging chargers can provide convenience for other types of batteries in some cases, using standard charging methods is safer and more reliable for lead-acid batteries.
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