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  • The Maintenance-Free Principle of Nickel-Cadmium Batteries

    The Maintenance-Free Principle of Nickel-Cadmium Batteries

    Dec , 12 2025
    The core principle behind the "maintenance-free" feature of nickel-cadmium batteries lies in their sealed structure and internal gas recombination reaction, which prevents water loss in the electrolyte—eliminating the need for manual maintenance.   In short, traditional open-cell batteries require maintenance because charging produces gases, causing water in the electrolyte to evaporate...
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