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What do you mean by Memory when referring to certain rechargeable batteries?
Wiki User
∙ 15y ago
On certain batteries, ff you don't use your battery until your device shuts off, and recharge it before that point often enough, the battery becomes weaker for it. Think of it in terms of exercise. You get muscules by pushing yourself beyond your normal limits. But the thing is, if you hit a certain level of exercise, and then stay at that level of exercise, your body gets use to it (they call it plateauing) and even though you are exercising, you don't continue to develop muscles any more. Well, in batteries, it is a chemical process that creates ionized electrons that flow from one end of the battery, through your circuit, and back to the other end of the battery. If you don't take full advantage of the full voltage necessary to run your device (or most power hungry device you use if you are using multiple devices), the chemicals in the battery start to weaken. As a result, if a battery would normally last 5 hours, you might find that after some usage and premature charging, it only lasts 4 hours. If left to go too long, this basically means the battery is ruined. But in some cases, you can actually find a power hungry device, keep using it until device shut down and recharging it fully several times in a row, and get some or all of your extra hour back. I call this exercising the battery.
Wiki User
∙ 15y ago
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Are any memory card readers powered by batteries?
Yes there a few that have rechargeable batteries you can use
What rechargeable battery has not memory?
Lithium-Ion (li-ion) batteries have no memory, new laptops use these
The Benefits Of Rechargeable D Batteries?
There was a time when rechargeable D batteries were somewhat unreliable and sometimes not as cost efficient as buying disposable batteries. With modern battery technology, however, rechargeable D batteries are now very economical and can save both money and the environment over the course of several years. One of the main advancements that have helped with the popularity of rechargeable batteries is the absence of a battery charge memory. This means that batteries no longer have a reduced duration if charged before being empty, or if not charged to full capacity.
What type of the battery has a memory effect?
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.
Why is nicad batteries different from regular batteries?
Ni-cad batteries first became popular as portable rechargeable batteries. The "regular batteries" used in cars are mostly lead-acid rechargeable batteries. The "regular batteries" used in toys, remote controls, flashlights and such, are mostly the non-rechargeable types. Ni-cad batteries use nickel and cadmium. The latter is a toxic substance, difficult to dispose of, and ni-cad batteries have a nasty tendency to lose capacity (the "memory" effect). For that and other reasons, makers of lightweight rechargeable batteries have switched to using nickel-metal-hydride or lithium batteries. (Lithium-metal = explosive, lithium-ion = very popular, lithium-polymer = extremely lightweight, lithium-iron-phosphate = next generation for hybrid and electric cars.) The Prius Hybrid uses nickel-metal-hydride battery cells. When weight or size is not as much of a concern, lead-acid batteries are used due to their lower cost. Most automobiles and many industrial uninterruptable power supplies use lead-acid batteries, which are capable of providing several hundred amperes of current for a short time. Ni-cad batteries are rechargeable, regular are not rechargeable.
5 advantages and 5 disadvantages of wet and dry cell batteries?
Alkaline batteries use a different electroyte, and last five to eight times as long as long as zinc carbon cells Wet cell batteries are rechargeable, but require a charger and can suffer from the memory effect. They also can contain harmful chemicals. Dry cell batteries are non-rechargeable but often last longer than one charged wet cell.
How many times can you use rechargeable batteries?
i buy a replacement toshiba laptop battery for toshiba satellite A70, it's rechargeable li-ion high capacity battery, the advantage of li-ion rechargeable is the memory effect is week, what's more ,it has a light weiht weigh compare to other type battery.
What are some of the accessories that can be bought for the Olympus DS 4000?
The Olympus DS 4000 can be purchased with additional accessories. It can also be bought separately. Some of the accerssories that can be bought are memory cards, rechargeable batteries and USB cable.
Why do batteries not last as long?
Simply because of the materials they're made from. There will always be degradation in rechargeable cells. Older Nickel Cadmium batteries suffered from 'memory effect' - which depleted their capacity gradually over time. Nickel Metal Hydride batteries don't apparently suffer this effect, and therefore last much longer.
Which is more powerful lithium ion or nickle cadium battery?
well your question is kind of awkward. a lithium battery is a cell battery, so i will outline all types of batteries and you can pick which you meant. Lithium Ion/ Lithium Polymer batteries- These are the most expensive, longest lasting, and lightest batteries. they have the highest power density and have no battery memory (that's when u recharge a battery before its empty and it wont go back to empty)- making them the best batteries for most applications. they have high amperage and voltage. BUT BEWARE lithium batteries have two flaws; you need a special charger and you CAN NOT let them completely run out of battery. if you don't follow these rules, you battery will not hold a charge and become useless.... these are rechargeable. Nickle Metal Hydride- these are great all purpose durable batteries. they have slightly lower chaarge life amperage and voltage that lithium, but they do not have the care problems that come with lithium batteries. NiMH batteries MAY be fully discharged if you wish, but do not need to be. also they can work with the normal battery chargers.... these are rechargeable Nickle Cadmium- these are probably the WORST rechargeable batteries. They MUST be fully discharged or else they lose part of their chargelife- this is called battery memory. this means either leaving whatever ur running on until it dies, or buying a special discharger. these batteries also have less power than NiMH in terms of both amperage and voltage. Regular non-rechargeable batteries- lowest amperage, variable voltage. non-rechargeable by definition >.< i wouldn't use these except for cheap, low power applications... like... flashlights. nothing you should be using often.
Laptop Battery Types?
When not plugged in, laptops require batteries to power the device. Battery types for notebooks can differ. Nickel Cadmium (NiCd) batteries are low in cost, versatile, and the first rechargeable batteries for laptops. Nickel Metal Hydride (NiMH) batteries are significantly better due to improvements in capacity, safety, and reliability. Lithium Ion (LiON) batteries are most popular due to being lightweight and improved memory effect. "Smart" or "dumb" batteries are better at managing battery energy and reporting charge state.
Do lithium polymer batteries get a battery memory?
Like lithium ion batteries, they do not suffer from battery memory but are also effected by gradual capacity loss caused by oxidization. It happens over a span of years from the manufacturing date, and lithium polymers (lipos) are basically lithium ion batteries that are easier to mold into various shapes needed for certain applications.
