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A few types of rechargeable batteries have what is called a "memory effect". The "memory effect" causes a loss of charge capacity in some rechargeable batteries if they are repeatedly recharged at exactly the same point on their discharge curve. When this "short cycle" discharge then recharge has happened enough times, the battery only retains the charge capacity between full charge and the point it was discharged to, it can no longer be discharged below that and will drop to zero voltage instantly.
The most notorious for this problem are nickel cadmium batteries, however even in them it had been shown that normal real world use does not produce a true "memory effect" in them and almost all failures attributed to nickel cadmium "memory effect" were really caused by other mechanisms.
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∙ 8y ago
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∙ 12y agorechargeable batteries
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ARE nicad batteries subject to memory effect or not?
Yep. This type of battery is most famous for suffering from the memory effect, which is one of the reasons for why NiMH batteries have largely replaced them.
Which type of battery retains a battery memory?
Nickel-Cadmium
What does PC100 Sodimm mean to me when deciding what laptop is best for me, concerning battery life?
PC100 is a type of memory, and doesn't affect (for your part) battery life. Consider getting a latop with different memory, which will likely be faster and more battery efficient (such as DDR memory).
Do you need to let a laptop battery run out?
It depends on the type of battery you have in your laptop.NiCd (Nickel Cadmium) batteries have a sort of memory effect. It is a good idea to cycle (Discharge fully) these kind of batteries as this ensures maximum capacity for longer.NiMhd (Nickel Metal Hydride) does not have this memory effect. They should not need to be discharged fully before being recharged.Memory effect is:The battery "remembers" after a few times of being recharged, when it was recharged. The capacity will then start to drop drastically and begs for a recharge when it reaches the point of where it normally have been recharged before.Example:A battery (NiCd) being at 50% and then recharged will after a few times drop the voltage at 50%. This giving the impression that it is "empty" where it is not really so.Note:The memory effect can be cancelled with a couple of deep discharge and full charge again. The battery is then -revived- brought back to capacity again.
Do you need a magic memory stick when hacking a psp with a Pandora battery?
A 'magic memory stick' is a specially prepared memory card, and a Pandora's battery. Either way, you need the new firmware on a memory card.
What type of memory looses its contents when power is removed?
The motherboard has a lithium battery on it that is juuuust strong enough to keep the memory from losing its data.
Do you need to let a ni-mh battery die all the way before you recharge it?
No, Nickle Metal Halide batteries are actually the friendly replacement for the Nickle Cadnium battery (Ni-Cad) that were prone to developing a memory if not completely discharged before recharging. Go ahead and recharge that battery when you need to and don't worry about memory developement, it wont happen with that battery type.
How does letting your phone die make its battery stronger?
It charges it more. There is a theory that nickel cadmium batteries have a problem called the "Memory Effect" which means that when a battery is repeatedly recharged when it has not been used very much, it "remembers" the smaller charge amount. The theory is that if you let your phone go completely flat occasionally, that cancels the memory effect and so keeps more charge. It may not be true. See the following article:
Does gaming effect memory?
Gaming doesn't have anything to do with your memory.
Can sleep effect your memory?
no
Will removing cell phone battery erase data?
No, the data is stored in your non-volatile internal memory of the cell phone which has nothing to do with the battery. battery is only for powering the memory and other componets in the cell
How do you access your memory card on a blackberry pearl?
I don't know which Blackberry you have, but I have a Storm and the memory card is in the same area as the battery case. Open the battery case and you can clearly see it. I had a Pearl and it was under the battery.
