Nickel cadmium battery

　　Nickel cadmium batteries, as a type of rechargeable battery, have the characteristics of high discharge level, long service life, and affordable price. However, due to the presence of toxic substances such as chemical cadmium in nickel cadmium batteries, which can cause environmental pollution, appropriate methods must be taken for recycling and treatment. Therefore, nickel cadmium batteries have gradually faded out of our sight.

　　In addition, nickel cadmium batteries are heavy and have a "memory effect", which can reduce battery life and even cause battery failure. The so-called "memory effect" refers to the phenomenon where when a user discharges a nickel cadmium battery that has not been fully discharged, the battery "remembers" the charging progress of its previous charge, making its maximum capacity equal to that capacity value. To avoid the "memory effect", users need to fully discharge the battery and fully charge it again at least once every few weeks.

　　advantage

　　1. Fast and convenient charging - even after long-term storage, it can still be charged quickly and conveniently;

　　2. High charging/discharging cycle coefficient - Through comprehensive maintenance, nickel cadmium batteries can ensure over a thousand charging/discharging cycles;

　　3. Superior load performance - nickel cadmium batteries can be charged in low-temperature environments;

　　4. Long shelf life;

　　5. Possess the strongest price advantage;

　　6. Different types and sizes are available for selection.

　　inferiority

　　1. Relatively low energy density;

　　2. Has a "memory effect";

　　3. Polluting the environment;

　　4. Relatively high self discharge coefficient - requires charging when stored and reused.

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