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Priming new lithium ion battery for full capacity
Does a new lithium ion battery need a few charge and discharge cycles
to be able to hold and delivery its full capacity? ISTR a new lithium ion needed a few cycles but when I checked on how much percentange improvement the extra cycles provided, I couldn't find any clear recommendation. |
#2
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Priming new lithium ion battery for full capacity
On Mon, 28 Sep 2009 15:28:47 +0100, Eddie wrote:
Does a new lithium ion battery need a few charge and discharge cycles to be able to hold and delivery its full capacity? ISTR a new lithium ion needed a few cycles but when I checked on how much percentange improvement the extra cycles provided, I couldn't find any clear recommendation. Yes, new Li-Ion batteries can use a few full charge and discharge cycles before they start to show their true capacity. I wouldn't go out of my way and do this intentionally in some charger that offers a discharge cycle because the gain doesn't seem to be all that great and you'd only end-up losing out on a few charge cycles from the battery's life. I don't know the exact percentage gained, and I'm sure it's dependent on each manufacturer, but rough guess is maybe 10-20% more after a few cycles. It is apparent they last longer (hold more charge) after a few uses. Just use them from full to empty in your camera a few times and by the 3rd or 4th time they're doing the best they can. |
#3
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Priming new lithium ion battery for full capacity
In article , John Navas
wrote: Does a new lithium ion battery need a few charge and discharge cycles to be able to hold and delivery its full capacity? Yes. no. http://www.batteryuniversity.com/partone-12.htm Lithium-ion is a very clean system and does not need priming as nickel-based batteries do. The 1st charge is no different to the 5th or the 50th charge. Stickers instructing to charge the battery for 8 hours or more for the first time may be a leftover from the nickel battery days. .... Preparing new lithium-ion for use Unlike nickel and lead-based batteries, a new lithium-ion pack does not need cycling through charging and discharging. Priming will make little difference because the maximum capacity of lithium-ion is available right from the beginning. Neither does a full discharge improve the capacity of a faded pack. However, a full discharge/charge will reset the digital circuit of a 'smart' battery to improve the state-of-charge estimation. |
#4
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Priming new lithium ion battery for full capacity
On Mon, 28 Sep 2009 15:28:47 +0100, Eddie wrote:
Does a new lithium ion battery need a few charge and discharge cycles to be able to hold and delivery its full capacity? ISTR a new lithium ion needed a few cycles but when I checked on how much percentange improvement the extra cycles provided, I couldn't find any clear recommendation. A Li-ion battery has a limited number of full charge cycles. No need to waste them. You'll get about 600 of them. |
#5
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Priming new lithium ion battery for full capacity
"Anecdotal Evidence" wrote in message ... On Mon, 28 Sep 2009 15:28:47 +0100, Eddie wrote: Does a new lithium ion battery need a few charge and discharge cycles to be able to hold and delivery its full capacity? ISTR a new lithium ion needed a few cycles but when I checked on how much percentange improvement the extra cycles provided, I couldn't find any clear recommendation. Yes, new Li-Ion batteries can use a few full charge and discharge cycles before they start to show their true capacity. I wouldn't go out of my way and do this intentionally in some charger that offers a discharge cycle because the gain doesn't seem to be all that great and you'd only end-up losing out on a few charge cycles from the battery's life. I don't know the exact percentage gained, and I'm sure it's dependent on each manufacturer, but rough guess is maybe 10-20% more after a few cycles. It is apparent they last longer (hold more charge) after a few uses. Just use them from full to empty in your camera a few times and by the 3rd or 4th time they're doing the best they can. Evidence, links? Just made this up didn't you? |
#6
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Priming new lithium ion battery for full capacity
On Tue, 29 Sep 2009 06:30:52 +1000, "Pete D" wrote:
"Anecdotal Evidence" wrote in message .. . On Mon, 28 Sep 2009 15:28:47 +0100, Eddie wrote: Does a new lithium ion battery need a few charge and discharge cycles to be able to hold and delivery its full capacity? ISTR a new lithium ion needed a few cycles but when I checked on how much percentange improvement the extra cycles provided, I couldn't find any clear recommendation. Yes, new Li-Ion batteries can use a few full charge and discharge cycles before they start to show their true capacity. I wouldn't go out of my way and do this intentionally in some charger that offers a discharge cycle because the gain doesn't seem to be all that great and you'd only end-up losing out on a few charge cycles from the battery's life. I don't know the exact percentage gained, and I'm sure it's dependent on each manufacturer, but rough guess is maybe 10-20% more after a few cycles. It is apparent they last longer (hold more charge) after a few uses. Just use them from full to empty in your camera a few times and by the 3rd or 4th time they're doing the best they can. Evidence, links? Just made this up didn't you? What part of the phrase "Anecdotal Evidence" do you fail to comprehend? You ****ingly useless major troll and moron. This is the same way that I found out that defragging flash-media will improve its write performance when it becomes sluggish, BY TESTING IT MYSELF. Contrary to all the popularized BS posted all over the net by fool trolls like you who only know how to parrot others' inexperienced nonsense. These newsgroups are crawling to the rafters with fools like that, just like you. Go ahead, use Google again to read the most popular links, made popular by fools who are more than happy to accept the most popular dumbed-down explanations. All because it sounds good and everyone else wants to believe it too so they can feel accepted by all their other fellow fools. Their need to feel as if they belong to the majority overwhelms their ability to think, act, and reason for themselves. Whereas more intelligent people will read those pages further down in the Google search that might have valid information created by those who never take the first and most popular answer as the correct one, or would rather test things independently of all others. Google = Easily parroted misconceptions authored by laymen exponentially multiplied and popularized by lazy, inexperienced, insecure, and ignorant minds. Wiki pages being even worse than that. "Facts" have been reduced to a an uneducated blind-following-sheep's popularity contest. You are living proof. |
#7
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Priming new lithium ion battery for full capacity
In article , John Navas
wrote: http://www.batteryuniversity.com/partone-12.htm A small battery charger company. so what? Lithium-ion is a very clean system and does not need priming as nickel-based batteries do. The 1st charge is no different to the 5th or the 50th charge. Stickers instructing to charge the battery for 8 hours or more for the first time may be a leftover from the nickel battery days. In other words, manufacturers do not agree with the opinion of Isidor Buchmann. that's just one person's opinion, but let's see what he says, shall we? http://www.buchmann.ca/chap2-page6.asp There is no memory and no scheduled cycling is required to prolong the battery¹s life. you really ought to read the stuff you cite. moving on, http://www.buchmann.ca/Chap15-page3.asp The manufacturer¹s recommended priming procedure should be followed. ... Li-ion cells need less priming than the nickel-based equivalent. Manufacturers of Li-ion cells insist that priming is not a requirement. The priming function on the Li-ion may be used to verify that the battery is fully functional and produces the capacity required. he says that nickel based batteries only need a 24 hour trickle charge (same page), and that lithium ion batteries don't even need that. http://www.buchmann.ca/article23-page1.asp Li-ion prefers a partial rather than a full discharge. Avoid depleting the battery fully too frequently. Instead, charge more often or use a larger battery. a full discharge is not the best thing to do, which is what a cycle charge is. Preparing new lithium-ion for use Unlike nickel and lead-based batteries, a new lithium-ion pack does not need cycling through charging and discharging. Priming will make little difference because the maximum capacity of lithium-ion is available right from the beginning. Neither does a full discharge improve the capacity of a faded pack. However, a full discharge/charge will reset the digital circuit of a 'smart' battery to improve the state-of-charge estimation. Here's what Apple has to say http://www.apple.com/batteries/: Lithium-ion polymer batteries need to be used for maximum performance. If you don’t use your device often, be sure to complete a charge cycle at least once a month. ... I'd say Apple is a more credible source, and that it's a good bet a new battery has been unused for much more than a month. Other manufacturers agree with Apple. apple has a vested interest in selling more batteries. it also says "if you don't use your device often...", which means if you *do* use the device often (i.e., most people), that clause would not apply, so you would not need to complete a charge cycle every month. someone who doesn't use a device often is not likely to be concerned with battery life. it also contradicts your cited reference above: "no scheduled cycling is required to prolong the battery¹s life." most importantly, it says absolutely *nothing* about priming a new battery with several charge cycles immediately after purchasing it. |
#8
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Priming new lithium ion battery for full capacity
In article ,
Eddie wrote: Does a new lithium ion battery need a few charge and discharge cycles to be able to hold and delivery its full capacity? ISTR a new lithium ion needed a few cycles but when I checked on how much percentange improvement the extra cycles provided, I couldn't find any clear recommendation. It's going to vary by manufacturing technique and rating technique. Ratings may understate or overstate capacity depending on whether the manufacturer wants to emphasize density or endurance. Only the manufacture's performance graphs will tell you what you want to know. -- I will not see your reply if you use Google. |
#9
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Priming new lithium ion battery for full capacity
"Anecdotal Evidence" wrote in message ... On Tue, 29 Sep 2009 06:30:52 +1000, "Pete D" wrote: "Anecdotal Evidence" wrote in message . .. On Mon, 28 Sep 2009 15:28:47 +0100, Eddie wrote: Does a new lithium ion battery need a few charge and discharge cycles to be able to hold and delivery its full capacity? ISTR a new lithium ion needed a few cycles but when I checked on how much percentange improvement the extra cycles provided, I couldn't find any clear recommendation. Yes, new Li-Ion batteries can use a few full charge and discharge cycles before they start to show their true capacity. I wouldn't go out of my way and do this intentionally in some charger that offers a discharge cycle because the gain doesn't seem to be all that great and you'd only end-up losing out on a few charge cycles from the battery's life. I don't know the exact percentage gained, and I'm sure it's dependent on each manufacturer, but rough guess is maybe 10-20% more after a few cycles. It is apparent they last longer (hold more charge) after a few uses. Just use them from full to empty in your camera a few times and by the 3rd or 4th time they're doing the best they can. Evidence, links? Just made this up didn't you? What part of the phrase "Anecdotal Evidence" do you fail to comprehend? You ****ingly useless major troll and moron. This is the same way that I found out that defragging flash-media will improve its write performance when it becomes sluggish, BY TESTING IT MYSELF. Contrary to all the popularized BS posted all over the net by fool trolls like you who only know how to parrot others' inexperienced nonsense. These newsgroups are crawling to the rafters with fools like that, just like you. Go ahead, use Google again to read the most popular links, made popular by fools who are more than happy to accept the most popular dumbed-down explanations. All because it sounds good and everyone else wants to believe it too so they can feel accepted by all their other fellow fools. Their need to feel as if they belong to the majority overwhelms their ability to think, act, and reason for themselves. Whereas more intelligent people will read those pages further down in the Google search that might have valid information created by those who never take the first and most popular answer as the correct one, or would rather test things independently of all others. Google = Easily parroted misconceptions authored by laymen exponentially multiplied and popularized by lazy, inexperienced, insecure, and ignorant minds. Wiki pages being even worse than that. "Facts" have been reduced to a an uneducated blind-following-sheep's popularity contest. You are living proof. LOL, and LOL again.... |
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