What is Memory Effect?
| Memory Effect of Batteries |
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Some rechargeable batteries are said to have a memory. If they are part-used and recharged before the whole charge is used up, they 'remember' this and next time will only use that part of their capacity. Therefore part of their capacity is lost. This is the theory, it is much debated. NiCd and NiMh battery's are said to suffer from memory effect. They prefer complete cycles; fully charge then use until empty, do not recharge before storage - allow them to self-discharge during storage. In the real world, either of these batteries will accept less than the ideal and provided that they are recycled completely, full to empty, reasonably often they will put up with what comes in between. NiMh battery's have less memory effect than NiCd. Where batteries are treated as workhorses, with only a moderate amount of care, NiCd batteries out-last NiMh battery's. This is because NiCd battery's under reasonable conditions, will take more charge / discharge cycles. |
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