You often hear people say things like "Nickel Cadmium Batteries are hard to use because they get the memory effect" or "when a battery starts to accumulate memory, it's time to replace it." The term "memory effect" or "memory accumulation" arose when nickel cadmium batteries started to be used in Camcorders (portable video recorders) 13 years ago, and since then, the term has become something with which most people are familiar.
What is the memory effect?
Memory accumulation is the name given to the phenomenon when a battery remembers how much it is discharged. The rechargerable batteries that are said to be vulnerable to memory accumulation are Nickel Cadmium Batteries.
What causes the memory effect?
It's caused by repeatedly using a battery without running the power supply down completely.
Why is it a problem?
Memory accumulation is often caused by the way the equipment using the batteries is designed. If a battery accumulates memory, the battery's operating time can become extremely short.
Note: "The Memory Effect" is not an academically defined term. In this section, we explain the condition using the generally accepted term "The Memory Effect."
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