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Save your gadgets' battery life! Memory effect debunked. Charge it properly.
I hope na maging sticky tong thread na to or sana mapakalat man lang sa ibang users.
Halos lahat ng gamit natin ngayon ay rechargable na. Kaya naman mas mabuting malaman natin ang technology tungkol sa mga bateryang to para magamit nang maayos.
Nababahala lang kasi ako sa ibang users na naniniwalang mas mainam na i full discharge/drain ang battery lagi. Yung iba nga pinipilit na maubos ang baterya bago magcharge. Sinisira nyo lang baterya nyo.
Di na kelangan gawin yun ngayon kasi Lithium based na mga battery natin.
Basahin nyo to kahit saglit lang at ishare sa iba. Please share you own insights on this topic.
Thanks!
Charge your battery correctly, in accordance with its type. Most newer cell phones have lithium-ion batteries, while older ones generally have nickel-based batteries. Read the label on the back of the battery or in the technical specifications in the manual to determine which yours is.
From Wikipedia:
Deep discharge
Some rechargeable batteries can be damaged by repeated deep discharge. Batteries are composed of multiple similar, but not identical, cells. Each cell has its own charge capacity. As the battery as a whole is being deeply discharged, the cell with the smallest capacity may reach zero charge and will "reverse charge" as the other cells continue to force current through it. The resulting loss of capacity is often ascribed to the memory effect.
Memory Effect
From ComputerWorld:
Memory effect refers to a temporary or permanent loss of capacity in a battery when it's discharged. Analysts at Frost & Sullivan Inc. in Houston say the phenomenon occurs most often in nickel-cadmium (Ni-Cad) cells, when they're discharged to a certain point and recharged a successive number of times. They say you can avoid memory effect by discharging the cell completely during each use and before recharging it.
True says he believes memory effect isn't really a problem for today's Ni-Cads in cell phones, since their chargers are more precise in preventing an overcharge. The memory effect was a bigger concern several years ago, when Ni-Cads were introduced for video equipment batteries as an alternative to lead-acid batteries.
"But for the most part, memory effect doesn't impact the average cell phone or appliance user any more," he notes.
The Mysterious Memory Effect of Rechargeable Batteries
From TLDP.org:
Nickel Cadmium (Ni-Cd) batteries were the standard technology for years, but today they are out of date and new laptops don't use them anymore. They are heavy and very prone to the "memory effect". When recharging a NiCd battery that has not been fully discharged, it "remembers" the old charge and continues there the next time you use it. The memory effect is caused by crystallization of the battery's substances and can permanently reduce your battery's lifetime, even make it useless. To avoid it, you should completely discharge the battery and then fully recharge it again at least once every few weeks. As this battery contains cadmium, a toxic material, it should always be recycled or disposed of properly.
Nickel Metal Hydride (Ni-MH) batteries are the cadmium-free replacement for NiCad. They are less affected by the memory effect than NiCd and thus require less maintenance and conditioning.
Lithium Ion (Li-ion) are the new standard for portable power. Li-ion batteries produce the same energy as NiMH but weighs approximately 20%-35% less. They do not suffer significantly from the memory effect unlike their NiMH and Ni-Cd counterparts.
Types of Batteries
From Digital Cameras Review Online:
Preventing the memory effect: Keep your battery healthy by fully charging and then fully discharging it at least once every two to three weeks. Exceptions to the rule are Li-Ion batteries which do not suffer from the memory effect.
Digital Camera Battery
From Duracell Batteries:
Emptying a battery to 0 volts (completely dead) can sometimes cause damage, leading to a reduction in battery life.
Duracell
From Wikihow:
Charge your battery correctly, in accordance with its type. Most newer cell phones have lithium-ion batteries, while older ones generally have nickel-based batteries. Read the label on the back of the battery or in the technical specifications in the manual to determine which yours is.
Nickel-based batteries ( NiMH) DO NOT generally suffer from a misunderstood phenomenon known as the "memory effect." As described in Wikipedia and many expert sources, the term "memory effect" has been widely mythologized to describe any and all deterioration of NiCd (and other battery chemistries), in many cases misleading consumers into further shortening the lives of the batteries through over-discharging to "recondition" them.
How to Make Your Cell Phone Battery Last Longer
From Dansdata:
If you flatten a battery before you recharge it - some people flatten their batteries manually, and some chargers do it automatically - you greatly reduce the life of the pack. A given battery pack may last for 500 full cycles, or 2000 partial ones. If you're fully flattening the battery by actually using it, then fair enough. But flattening it as part of the recharging process is goofy.
True memory only happens in sintered plate NiCd cells (which aren't necessarily the sort of NiCd you're using, and are of course completely different from any kind of NiMH cell), and it only happens when you precisely discharge a cell to exactly the same level over and over again, and recharge it without any overcharge. True memory effect happens in satellite power systems, electronics test labs, and practically nowhere else.
Fully discharging cells cures voltage depression, but if you fully discharge a whole battery then the stronger cells in the battery will "reverse" the weaker ones. The weaker ones go flat first, and then get charged backwards by the others. This is very bad for the weaker cells, and will kill a battery pack quick smart. So don't do it.
Dan's Quick Guide to Memory Effect, You Idiots
I hope na maging sticky tong thread na to or sana mapakalat man lang sa ibang users.
Halos lahat ng gamit natin ngayon ay rechargable na. Kaya naman mas mabuting malaman natin ang technology tungkol sa mga bateryang to para magamit nang maayos.
Nababahala lang kasi ako sa ibang users na naniniwalang mas mainam na i full discharge/drain ang battery lagi. Yung iba nga pinipilit na maubos ang baterya bago magcharge. Sinisira nyo lang baterya nyo.
Di na kelangan gawin yun ngayon kasi Lithium based na mga battery natin.
Basahin nyo to kahit saglit lang at ishare sa iba. Please share you own insights on this topic.
Thanks!
Charge your battery correctly, in accordance with its type. Most newer cell phones have lithium-ion batteries, while older ones generally have nickel-based batteries. Read the label on the back of the battery or in the technical specifications in the manual to determine which yours is.
From Wikipedia:
Deep discharge
Some rechargeable batteries can be damaged by repeated deep discharge. Batteries are composed of multiple similar, but not identical, cells. Each cell has its own charge capacity. As the battery as a whole is being deeply discharged, the cell with the smallest capacity may reach zero charge and will "reverse charge" as the other cells continue to force current through it. The resulting loss of capacity is often ascribed to the memory effect.
Memory Effect
From ComputerWorld:
Memory effect refers to a temporary or permanent loss of capacity in a battery when it's discharged. Analysts at Frost & Sullivan Inc. in Houston say the phenomenon occurs most often in nickel-cadmium (Ni-Cad) cells, when they're discharged to a certain point and recharged a successive number of times. They say you can avoid memory effect by discharging the cell completely during each use and before recharging it.
True says he believes memory effect isn't really a problem for today's Ni-Cads in cell phones, since their chargers are more precise in preventing an overcharge. The memory effect was a bigger concern several years ago, when Ni-Cads were introduced for video equipment batteries as an alternative to lead-acid batteries.
"But for the most part, memory effect doesn't impact the average cell phone or appliance user any more," he notes.
The Mysterious Memory Effect of Rechargeable Batteries
From TLDP.org:
Nickel Cadmium (Ni-Cd) batteries were the standard technology for years, but today they are out of date and new laptops don't use them anymore. They are heavy and very prone to the "memory effect". When recharging a NiCd battery that has not been fully discharged, it "remembers" the old charge and continues there the next time you use it. The memory effect is caused by crystallization of the battery's substances and can permanently reduce your battery's lifetime, even make it useless. To avoid it, you should completely discharge the battery and then fully recharge it again at least once every few weeks. As this battery contains cadmium, a toxic material, it should always be recycled or disposed of properly.
Nickel Metal Hydride (Ni-MH) batteries are the cadmium-free replacement for NiCad. They are less affected by the memory effect than NiCd and thus require less maintenance and conditioning.
Lithium Ion (Li-ion) are the new standard for portable power. Li-ion batteries produce the same energy as NiMH but weighs approximately 20%-35% less. They do not suffer significantly from the memory effect unlike their NiMH and Ni-Cd counterparts.
Types of Batteries
From Digital Cameras Review Online:
Preventing the memory effect: Keep your battery healthy by fully charging and then fully discharging it at least once every two to three weeks. Exceptions to the rule are Li-Ion batteries which do not suffer from the memory effect.
Digital Camera Battery
From Duracell Batteries:
Emptying a battery to 0 volts (completely dead) can sometimes cause damage, leading to a reduction in battery life.
Duracell
From Wikihow:
Charge your battery correctly, in accordance with its type. Most newer cell phones have lithium-ion batteries, while older ones generally have nickel-based batteries. Read the label on the back of the battery or in the technical specifications in the manual to determine which yours is.
Nickel-based batteries ( NiMH) DO NOT generally suffer from a misunderstood phenomenon known as the "memory effect." As described in Wikipedia and many expert sources, the term "memory effect" has been widely mythologized to describe any and all deterioration of NiCd (and other battery chemistries), in many cases misleading consumers into further shortening the lives of the batteries through over-discharging to "recondition" them.
How to Make Your Cell Phone Battery Last Longer
From Dansdata:
If you flatten a battery before you recharge it - some people flatten their batteries manually, and some chargers do it automatically - you greatly reduce the life of the pack. A given battery pack may last for 500 full cycles, or 2000 partial ones. If you're fully flattening the battery by actually using it, then fair enough. But flattening it as part of the recharging process is goofy.
True memory only happens in sintered plate NiCd cells (which aren't necessarily the sort of NiCd you're using, and are of course completely different from any kind of NiMH cell), and it only happens when you precisely discharge a cell to exactly the same level over and over again, and recharge it without any overcharge. True memory effect happens in satellite power systems, electronics test labs, and practically nowhere else.
Fully discharging cells cures voltage depression, but if you fully discharge a whole battery then the stronger cells in the battery will "reverse" the weaker ones. The weaker ones go flat first, and then get charged backwards by the others. This is very bad for the weaker cells, and will kill a battery pack quick smart. So don't do it.
Dan's Quick Guide to Memory Effect, You Idiots
Last edited:
kaya nga battery empty nalang understood na yun,but again its not totally empty as in zero para masira yung stronger cells,sigurado akong alam din manufacturer ng mobile phones yun na hindi dapat ubusin ng phones nila totally yung power ng battery.
