I think these were supposed to start production in FY 2012. I'm wondering if we are going to see protected versions of these soon (Redilast and/or AW). Considering I'm still using AW 2200 mAh cells, these would be a nice boost. Anyone have any recent info?
Panasonic 3400 mAh 18650
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Nonprophet
Newly Enlightened
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I know that there's 3100 maH Panasonics out now--I believe that's what Callie's Kustoms are using---I just got two of them and I think they're great! NP
Stephen Wallace
Enlightened
Redilast and AW also use the Panasonic 3100mAh cells in their batteries of this capacity, as well as a couple of other smaller dealers.
jasonck08
Flashlight Enthusiast
According to a press release Panasonic mentioned they should start production in 2012. But its unlikely that anyone will be able to get these cells in hand for another couple years. The 3100's were out for a couple years before they were available through battery distribution channels. I think the Sony 3500mAh may be released sooner... But these cells are a little odd with a 4.30v CV charge voltage and a 2.0v cutoff voltage.
Thanks Jason. Yeah, if I look historically, the 3100's started production in Dec 2009, and the Redilast 3100's weren't available until Jun 2011 (18 months later). I guess that puts the 3400's into 2013 at least, but we can always hope. I think I'll buy a some AW 3100's for now.
samgab
Flashlight Enthusiast
Here's some Panasonic 18650 roadmap info that I found interesting:
alpg88
Flashlight Enthusiast
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i wouldn't get exsited too early, 3100mah cells used in aw and redylast become 2900mah after about 50 cycles, there was a threrad here with test data, so these 3400mah may become 3100 or even 2900 after 50 cycles as well, we don't know untill it comes out and we test them.
ShineOnYouCrazyDiamond
Flashlight Enthusiast
Another thing I am noting in the chart above is that all the 2.2Ah, 3.1Ah and 3.4Ah have similar discharge curves down to about 3.5v (the 2Ah mark). At that point the 2200mAh cell drops off rapidly while the 3100 and 3400 dwindle slowly from 3.5 -> 3 volts over the next 1-1.3 Ah. In a single cell application this is not very useable territory unless you have a good buck\boost driver but it's more acceptable when you have multi-cell applications that can make more use of the lower end of the cells range.
That's not a problem, li-on cells get worn down by 200 cycles anyway. I use my lights a lot and yet i only recharge them once a week so 50 cycles will easily last up to a year.
tobrien
Flashlight Enthusiast
what about 14500s, 16340s, and maybe 10440s?
GehenSienachlinks
Newly Enlightened
I have Panasonic 3100 mah protected from ebay and they are much cheaper then AW 3100 , you can get three of them for the price of one aw .
jasonck08
Flashlight Enthusiast
What about them? Are you hoping to see increased capacities? Not likely, as these are not very popular cells in compared to the hundreds of millions of 18650's sold every year.
Maybe with your usage. But a good Li-ion cell that is not abused typically is rated to 300-500 cycles to 70-80% original capacity.
Yeh and the 2900 cells drop to 2700 after the same time so whats your point? The 3100 cells have 200mah more capacity than the 2900 full stop.
901-Memphis
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I have not yet seen them this cheap. You must be talking about the green wrapper Panasonic cells which are un protected. I thought Intl- Outdoors had the cheapest Panasonic NCR18650A 3100mah protected 18650s at $13.96 each with free shipping. I just bought two myself to test and will buy more if I like
mellowhead
Enlightened
The NCR18650A's were released on DX a week or two ago with protection AND a case - $21.00/pr.
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hellokitty[hk]
Enlightened
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Actually orbtronic has them for ~$13 USD and dx has them for ~$21 for two.
warmurf
Enlightened
Can you trust DX though? Will they be Panasonics? DX has been pinged for selling non gen gear by Ultrafire of all makers.
Shadowww
Banned
Unprotected 3100mAh's from DX are 100% genuine (checked them myself - did capacity check, compared them to 100% genuine NCR18650A's from IOS, did runtime tests etc), so 2900mAh's most likely are genuine too.
