Lithium Ion Batteries For Laptop Posts
Top Questions and Answers
Will freezing a lithium ion laptop battery be totally safe for it? I've been told to keep my laptop battery away from water and moisture. But I've also heard (Wikipedia) that freezing lithium ion batteries when you're not using them dramatically extends their life.
Can I freeze my lithium laptop battery in a plastic bag, and then let it thaw out, without potentially harming it?
thanks very much
William C replied: "Yes"
Andrew M replied: "Ive been reading up on doing this on the internet, and ive seen more than a few sites saying "Do not freeze Li-Ion batteries" Try it at your own risk, but a worn out battery is a worn out battery, and freezing it will only give you a cold worn out battery.
Even if there is an effect on its life, it will be slight and temporary"
What is the best way to take care of a Lithium Ion Laptop Battery? I have a Toshiba L45-S7423 laptop, and i am wondering, what is the best way to take care of the Lithium Ion battery, that it has, to get the longest life out of it?
oni-kun 卍 replied: "Regardless due to the nature of them, their life spans range only one to two years. Even when not in use. Make sure you spend the whole battery atleast once a month, and let it charge from empty while off. This will re-align the lithium substate and maintain a slightly better capacity over time."
616 replied: "what i would do is just try to avoid charging it and using it simultaneously. this will burn out a battery quicker than you can imagine. we have a laptop that you cannot use for more than 10 seconds without it being plugged in, because we would always use it while it was plugged into the wall.
this question is an easy 10 points if you know how to do it!
will take 2 secs.."
Brad replied: "Fully charge it before initial use (if you just got it), keep the laptop plugged into the adapter when stationary, and use the battery fully before you recharge it (don't just use like 20% battery life and then charge) Thats about all I can say about them. If your going to replace the battery get a large and better one :)"
Bash B replied: "Basic:
Reducing charging times,laptop battery has life of 300-500 normal charging times.
Reducing unnecessary power supply to get longest life. ( cut usb powered devices....)"
Liza L replied: "Generally, the approximate life of a battery is about 2-3 years depending on usage. But I have learned that charging batteries when it is not completely drained shortens its life. That is why it is important to wait for the battery to reach less than 10% capacity before plugging it for charging."
Whats the best way to store a lithium-ion laptop battery? I have an Acer Extensa laptop with a Lithium Ion battery (model number TM00741) should it be charged fully, or discharged completely. I have even heard to store it at about 40% capacity. I wont be using that much as I will be using d/c power mostly, also I dropped it once will that affect the life of it? Thanks 10 points to best (and supported) answer
Aftershock replied: "Store it at room temperature at a low humidity. There is no reason to discharge the battery, so you could store them at 50% capacity."
Bassman1 replied: "Just leave it installed and even plug in it will keep a charge, I have a lap top that is 6 yrs. old and the battery has not been out and is still good.
The battery life depends on the number of times it is discharged and charged so if it stays charged most all the time it will last a long time.
You can also fully charge the battery and store it in a zip lock bag in a refrigerator. This site might give you better info on battery care:
Hope this helps"
Mark E replied: "If you know you will not be using the battery right away, it is true that storage at about 40% capacity in a cool (not freezing) dry atmosphere will extend its life. (The trick is, of course, in knowing when you WILL need it, as taking off with a cold, mostly-discharged battery is not what you'll want for portable use!) Before using it, let it warm up for a couple of hours, then charge it. Such efforts will help a bit, but it should be noted that Li-ion batteries typically last no more than a few years no matter what you do! So, you'll have to gage the potential life extension against the value of grab-and-go convenience.
Dropping the pack will probably not have a long-term effect if it still works. Impact can cause connections between individual cells to open or other ills, but these problems typically show up immediately."
Is better to leave devices (cellphone, laptop) with lithium-ion batteries plugged in all the time? I thought you were supposed to charge them fully, then let them drain almost completely, then charge them, and so on.
But this month's issue of PC World says that's only the case for (older) nickel-cadmium batteries, and that current lithium-ion batteries have "the opposite problem"—does that mean they best keep their capacity if you leave them plugged in as much of the time as possible?
AM replied: "You should let the battery drained every once in a while - at least in my experience (with both cellphones and laptops) that the battery life extends slightly when I let the battery drain. I do it once a week or so. The rest of the time, I charge laptops and phones over nite"
camacho_2011 replied: "if you do that with cell phones it kills the battery capcity to charge it. Laptops yeah"
Ex Chemist replied: "The article is correct. You will get the longest life from a Li-ION battery if you recharge it before it is half drained. However, then you only get 1/2 of the capacity.
It's best to recharge Li-ION batteries whenever convenient but, if possible, before they are fully drained."
MunkeyQ replied: "That article is correct for anything with a Li-ion battery - which is ALL phones nowadays, all laptops made in the last 15 years and all MP3 players.
A Li-ion battery has a limited lifetime in terms of cycles. (normally about 400-500) One full discharge/charge cycle counts as one cycle; so discharging it 1/10th of its capacity and then charging again is 1/10th of a cycle. Thus, charging it whenever you can and keeping it on charge is best.
Footnote about leaving it on charge: the charger does not carry on feeding a trickle charge into the battery like with NiCd cells. It will stop when it is senses it is charged, and then monitor the charge level. When it self-discharges to about 98% of its capacity (this is called the charge threshold level), charging will resume once again until it is full. This cycle continues all the time you leave a device attached to its charger."
Marc X replied: "Normally, I find PC World to be a hype magazine going ga-ga over all the new gadgets, useful or not. But the article is entirely correct. As an electrical engineer, I've been working with rechargeable batteries for 30 years.
The old NiCd's did tend to suffer from memory charge, and only a full discharge would over come that problem. Cadmium crystals typically built up from gradual discharge, and with only partial discharges, the crystals become ever larger. Normal charging would break down and reverse the smaller crystals, but for the larger ones, it required a full discharge and massive recharge to fully break them down.
NiMh batteries do not suffer such problems, nor do lithium-ion batteries. In fact, fully discharging them substantially REDUCES their life. Much better to leave them plugged in for trickle-charging when not in use. Actually, that's exactly the process that lead-sulphur batteries in your car operate, always plugged in, trickle-charging, so they'll be fully charged when you need to start the car."
What is the best way to charge a Lithium ion laptop battery to extend its life? I have a DELL Inspiron 1525. Its new and has a 6 cell Li-Ion battery. Should I always keep it connected to the mains, even when its fully charged? Or should I charge fully, disconnect from mains, run it down, then recharge? What will ensure it lasts the longest and still provides me with 3 hours of charge when I need it?
Thanks
K4nj!n replied: "I remove my battery and store it in a cool dry place when consistently using the mains, so it doesn't get recharged every time I use the laptop (even when it's already fully charged). They say it's better to fully run down the battery when it is new before charging."
Dave S replied: "Keep it plugged in whenever possible. If you do run on battery power let it run as far down as possible before recharging. This will keep it healthier and prolong it's life. The worst thing you can do is to repeatedly let it run down a small bit and then recharge."
Whats the mah of the lithium ion batteries from a laptop, HP DV2000? Whats the mah of the lithium ion batteries from a laptop, HP DV2000
ID on the battery is:
LGCP218650
F3031007747
DJ301C2P2
The Battery pack can't hold a charge and I want to estimate the life of a set of new replacement batteries to install based on the mah of the new batteries.
The numbers letters and letters I listed are the only identification on the batteries.
Jack S replied: "47wh which I beleive means Watt-hours.
I have the same one, the battery wears down after a while.
I recommend trying to get a new one through HP especially if you have a warranty, or get a new one off ebay, using the old one as a backup"
Laptop Lithium Ion Battery Life - Why do you answer if you don't know the answer? I was going through the answers for "How to prolong (laptop's) Lithium Ion Battery?'
I was shocked to see ALL WRONG answers...!!
I'll copy paste some faqs and facts (from different websites):
Question: Should I totally discharge, then recharge my Dell laptop battery occasionally to make it last longer?
Answer: No, discharging and charging does not increase the life of a Lithium Ion technology battery.
Question: Can a Dell laptop battery be "overcharged"?
Answer: No, the battery is designed to stop using the charger when it reaches full charge
Question: Why there is no need for us to remove the battery when we use external electrical power?
Answer: There is chip on the main board to prevent overcharge. When it has been charged up to 100%, charging control chip(PET) will stop the charging. Don't worry about any damage to the battery
Conclusions:
1) Laptops with Lithium Ion Batteries do not require conditioning (i.e. fully-discharge/charge everytime)
2) You can leave your Laptop on AC supply without worrying about anything ! (except ofcourse your Electricity Bill)
I don't really require any Answer... BUT will like to hear your views on this.
Best answer goes to someone who agrees about all that above and could ADD some more info to help others having the same question.
References:
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wyse_tech2000 replied: "Why would you bother asking people who do their best to answer your questions and help you, when you found other opinions more superior to ours ? Is it that you enjoy making people appear stupid ?
I do fully agree with the facts you provided but i'm sure any other suggestions i have to offer would be useless to you."
JayDax replied: "'Fraid you just have to accept that batteries don't last forever. After a year of heavy use I find they hold about 60% of their original charge.
Your statements seem pretty accurate to me. Batteries do seem to be slowly getting better though. Personally I'm looking forward to the methanol fuel cells being released."
How long is the battery life of a 6 cell standard laptop lithium ion battery? how long does the battery last before it has to be charged again and does it vary from one laptop to the next?
if so how's the battery life if u get the standard battery on an hp pavilion (im looking into the dv5z series)
also if anybody can give me any pointers on how to maximize battery life and prevent losing battery life as the battery gets older, it would be appreciated
MAYA NEGRA replied: "If it is high capacity, it might last 4 hours, (Internet only). if is not about 3 hours."
Ive got a question . . . replied: "Well, I can't really answer your first set because I'm honestly not too sure (I can get up to 8 hours on my Macbook, if that helps), but I have TONNS of pointers--
1. Turn your screen as dim as you can
2. Press ctrl, alt, and delete on your PC (or command, option, esc on mac), and always shut off all programs that you don't need running
3. If you have wifi/whatever running and you don't need it, shut it off
4. Playing movies will wear your battery right down, so if you can help it, don't watch any if you need long battery life for something
long term:
1. Keep your battery as cool as possible at all times (but not below like 40 degrees)
2. When you're using AC power, take your battery out! The hard drive will get your battery hot and it will lose its life slowly
3. When you have to use your battery, try to wear it down all the way every time you use it. Don't use it some, re-charge it, use it some more, re-charge it---wear it all the way down and then charge it.
I hope this helps :)"
Colin R replied: "It depends dramatically on the specs of the laptop it's connected to. I have a 9-cell that lasts three hours tops under Linux (and 2 1/2 under Vista) on a gaming laptop, but I've heard on lower end systems runtimes in the order of 4 hours up on even the default battery.
One way to maximize battery life, on Vista, is turning off the Aero Glass interface since it uses 3d hardware to render (which is why Linux runs longer for me), also turn down the screen brightness to the minimum you need to view it, find a way to spin down the hard drives when they're not needed, don't use any external devices, turn off unneeded subsystems that can be turned off (like wireless and Bluetooth when you're not using it, accessory lights, etc.). To that end there might even be ways to turn off Services under Windows to demand less hard drive access. Also another biggie is to find a way to throttle down the CPU to the minimum it allows."
loltank32147 replied: "Well, I'm looking at the exact same laptop and I'm wanting the 12-cell (I know, it's really bulgy, but i think it's worth it). you should probably upgrade to 12-cell or 6-cell upgrade (not sure what it's called, it's like power saving battery or something)."
Off-brand laptop Lithium Ion batteries? I need to replace the battery for my Gateway laptop, which is about 5 years old, and I was wondering about the reputation of compatible off-brand batteries. They are substantially cheaper than a Gateway, but I know that you often get what you pay for.
dawn® replied: "theyre usually the same batteries ... check the "mah" rating and if its the same it will probably be fine ..."
aera replied: "It's the same thing."
Which is a better battery for laptop - 6 cell lithium ion battery or just a lithium battery ? I know a lithium last for about 3 hours before recharging. How long does a 6 cell last before needing to be recharged ?
Bassman1 replied: "The 6 cell lithium ion or 9 cell is the best. Go to: to check for battery and price.
Hope this helps"
ffb A replied: "My 6-cell dell battery last 2.5 hours,i think a 9-cell battery will last 3 hours or even longer."
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Keep your digital life charged with laptop batteries and replacement batteries for your digital devices. OfficeMax carries battery choices like lithium batteries, ...
Lithium Ion Laptop Batteries - Yahoo! Shopping
Find the best price for Lithium Ion Laptop Batteries at Yahoo! Shopping. Compare prices, read reviews and ratings for Lithium Ion Laptop Batteries
Recalls And Safety Alerts 1/07: Lithium-Ion Batteries
A listing of hazardous products.
Lithium Ion Laptop Battery - TheFind.com
Find products and compare prices at TheFind.com. Shop online for thousands of great items like the Lithium Ion Laptop Battery.
Apple - Batteries
You can charge all lithium-ion batteries a large but finite number of times, as ... Lithium-ion polymer batteries need to be used for maximum performance. ...
TSA: Safe Travel with Batteries and Devices
... (TSA) protects the nation's transportation systems to ensure freedom of movement for people and commerce. TSA's regulations, ... Lithium-ion batteries, often found ...
Lithium Ion Laptop Battery at Shopping.com
Find Lithium Ion Laptop Battery and more Laptops at Shopping.com. Shop 1000's of stores and compare prices. Free shipping on all items.
Lithium Ion Batteries - Laptop Batteries - Cellular Phone ...
Batteries Plus offers long-lasting rechargeable lithium ion batteries to meet your portable laptop, cellular, PDA, MP3 and 2 way radio needs. Take a look at our ...
HP Lithium Ion Laptop Batteries - Yahoo! Shopping
Find the best price for HP Lithium Ion Laptop Batteries at Yahoo! Shopping. Compare prices, read reviews and ratings for HP Lithium Ion Laptop Batteries
Lithium-ion laptop battery overhaul
My laptop battery is the standard 6 cell lithium-ion pack that comes with the ... Charging lithium-ion batteries requires a high voltage and current for the ...
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