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#21
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Priming new lithium ion battery for full capacity
In article , John Navas
wrote: On Tue, 29 Sep 2009 13:13:01 -0700, nospam wrote in : In article , John Navas wrote: Battery issues are a primary reason people upgrade their phones. In the USA a new phone is often (usually?) less expensive than a new battery ... most people upgrade because the cell carriers pitch free (or nearly so) phones. i get calls every so often telling me i can get all sorts of stuff just by renewing. So you're agreeing with me. no. you said it was due to battery issues and i'm saying it's because people like free phones (and $50 is 'free' given the lengthy contract they must commit to), especially when they're going to be staying with their carrier anyway. for those who switch carriers, they get a new phone. the hand-me-downs end up on ebay or craigslist and have very good battery life (i've bought several that way, contract free). Then you've been buying relatively young phones. Batteries have a useful life of 1-2 years. actually, i buy older ones that do what i need. my last phone was new in 2004 and it currently lasts a couple of days between charges (and i didn't prime the battery either ). that's less than when new but certainly more than adequate for most people. the only reason i switched was because i wanted some new features. ... with the iPhone a notable exception, which is why the criticism is justified, not to mention the built-in memory instead of a more user-friendly memory card. "It's not a bug, it's a feature!" LOL yes it is a feature. with as much as 32 gig built in, who needs to mess with cards? Small comfort to those who bought smaller ones. that can happen, but given the resale price of used iphones, they stand to make a profit by upgrading to a larger capacity model. |
#22
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Partial charging and total cycles [was:Priming new lithium ion battery for full capacity]
On Tue, 29 Sep 2009 12:50:27 -0700, John Navas wrote:
On Tue, 29 Sep 2009 14:29:17 -0400, wrote in : The number 600 it at the high end. Other than an initial charge and discharge to calibrate the low battery level electronics there is no gain in a "few charge and discharge cycles". The gain in capacity after a "few charge and discharge cycles" comes with other battery technologies. Not Li-ion. Can I ask you if all discharge/charge cycles are equal? Full charge cycles are at most 600 More like 1000 for the best current batteries. Current as in amperage, or as in up to date? |
#24
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Priming new lithium ion battery for full capacity
On Tue, 29 Sep 2009 14:13:11 -0700, John Navas
wrote: On Tue, 29 Sep 2009 16:07:38 -0400, wrote in : O 600 is low for experimental Li-ion batteries, but Li-ion's presently being sold are still around this number. Actually more like 1000 for the best current batteries. Can you show a link? http://www.apple.com/macbookpro/battery/ Apology accepted. So how does one put this into their camera? Can you show a link? |
#25
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Priming new lithium ion battery for full capacity
So how does one put this into their camera? Can you show a link? Not even a gracious loser. Why am I not surprised. Last I looked the group was rec.photo.digital. When you can find one of these batteries that you can put into a camera then I'll admit defeat. You can't. All you can do is find a claim by Apple that their new technology battery can last up to 1000 charges. Your Apple battery is no more a reality to rec.photo.digital than the experimental Li-ion batteries that can be charged 10,000 times. |
#26
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Priming new lithium ion battery for full capacity
"Allen" wrote in message ... Kevin McMurtrie wrote: 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 am curious about why some people are so obsessed with battery life--batteries are the cheapest element in digital photography. Some of the satements in this thread (_Not_ McMurtie's post, incidentally) approach the medieval "how many angels can dance on the head of a pin" question. Allen Be that as it may, I paid AUD$1,700 for a camera body and the batteries here in Australia are AUD$170 each so if I buy two spares that means they are 20% of the cost of the body, personally I would like to know what sort of life I will get from them. Pete |
#27
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Priming new lithium ion battery for full capacity
"Pete D" wrote in message ... [] Be that as it may, I paid AUD$1,700 for a camera body and the batteries here in Australia are AUD$170 each so if I buy two spares that means they are 20% of the cost of the body, personally I would like to know what sort of life I will get from them. Pete Try the 3rd-party suppliers. Some, at least, provide good batteries - indistinguishable in performance from the manufacturer's originals, and a /lot/ cheaper than AUD$170. David |
#28
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Priming new lithium ion battery for full capacity
Be that as it may, I paid AUD$1,700 for a camera body and the batteries here in Australia are AUD$170 each so if I buy two spares that means they are 20% of the cost of the body, personally I would like to know what sort of life I will get from them. Pete Li-ion batteries start to die from the day they are manufactured. I believe they generally have a useful life of five years.This occurs even when not being used. So unless you actually use all your spares from the start it may not be the best decision to buy now instead of waiting until you actually need another battery. If you want your unused spare to last you can slow down the chemical degradation of the battery by keeping it charged at about 60% capacity and storing it in the refrigerator. |
#29
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Priming new lithium ion battery for full capacity
Anecdotal Evidence wrote:
BY TESTING IT MYSELF. Testing it myself, typical name shifting trolls like "Anecdotal Evidence" are worthless. "Facts" have been reduced to a an uneducated blind-following-sheep's popularity contest. To quote you: "You are living proof." -Wolfgang |
#30
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Priming new lithium ion battery for full capacity
On Wed, 30 Sep 2009 09:15:55 -0700, John Navas
wrote: On Wed, 30 Sep 2009 03:51:19 -0400, wrote in : Li-ion batteries start to die from the day they are manufactured. True. I believe they generally have a useful life of five years. More like 2-3 years, depending on technology. Funny that. Three Li-Ion batteries from three different manufacturers; one being the OEM battery, one an inexpensive generic backup for that camera, and the third being an external power-pack (brand DigiPower with DC-DC voltage converters for all my cameras that I mated-up with solar panels for recharging); which I use for a 9 year old camera are still providing full charges. All purchased when I purchased the camera 9 years ago. I was just using that camera yesterday on the original OEM battery. The backup generic is used to power an IR-flood frequently. The OEM battery itself has alone provided over 300,000 photos on that camera. This is why I never believe anything that is parroted by others, nor by websites on the net, no matter how many of them are saying the same thing nor how reputable everyone claims them to be. Unless I test it myself to find out if it is just more inexperienced and parroted net-BS. Misinformation on the net breeds exponentially. Until truth and facts are just a vague shadow found on the singular 8,339,004th hit of all Google pages presented. |
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