Panasonics NCR18650A from taobao. Total $6.64 each

Batteries, Chargers, and Battery Management Systems.

Panasonics NCR18650A from taobao. Total $6.64 each

Postby iperov » Fri Jun 29, 2012 1:04 pm

This item http://item.taobao.com/item.htm?id=1598 ... 001318.0.0
through my loved taobao agent -> http://www.taobaotrends.com
with ship to Russia is $6.64 per cell !

this picture from agent, he received my order and ready to ship to me
https://dl.dropbox.com/u/28559/Cbd/2892.JPG
Sorry, bad english!
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Re: Panasonics NCR18650A from taobao. Total $6.64 each

Postby SamTexas » Fri Jun 29, 2012 1:28 pm

That's the best price I've seen so far. Thanks for the link.
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Re: Panasonics NCR18650A from taobao. Total $6.64 each

Postby cwah » Fri Jun 29, 2012 1:32 pm

Would they also sell assembled pack?
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Re: Panasonics NCR18650A from taobao. Total $6.64 each

Postby mvly » Fri Jun 29, 2012 3:13 pm

Yeah I want to know if they will sell assembled packs. ~$650 for 98 cells without shipping for 51.8V21.7Ah battery.
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Re: Panasonics NCR18650A from taobao. Total $6.64 each

Postby iperov » Fri Jun 29, 2012 11:42 pm

I have not seen this packs on taobao.

you can search items on taobao yourself through http://www.yoybuy.com
for example search for "NCR18650A" -> http://www.yoybuy.com/en/Product/Search?Keys=NCR18650A
Sorry, bad english!
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Re: Panasonics NCR18650A from taobao. Total $6.64 each

Postby SamTexas » Sat Jun 30, 2012 12:03 am

No way they would make a pack and still sell it at same price as individual cells. Once they put them together, they have to replace the whole pack if one the cell fails. It would not surprise me if they charge 50% premium for a small 500Wh pack and 100% for 1kWh or more.

$136 is what Dell wants for a 6 cells, 48Wh pack. That's $2.83/Wh.
http://accessories.us.dell.com/sna/prod ... nk=1&s=dhs
Of course Dell's profit margin is stratospheric but the idea is the same.
Last edited by SamTexas on Sat Jun 30, 2012 12:58 am, edited 1 time in total.
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Re: Panasonics NCR18650A from taobao. Total $6.64 each

Postby iperov » Sat Jun 30, 2012 12:56 am

by the way soldering NCR18650A is very easy, this is not a123 evil contacts xD
Image
Attachments
sold.jpg
(119.14 KiB) Downloaded 3 times
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Re: Panasonics NCR18650A from taobao. Total $6.64 each

Postby texaspyro » Sat Jun 30, 2012 5:52 pm

Cells are probably Panaphonies and not Panasonics... I've never see a legit and/or properly spec'd 18650 cell come out of China. Caveat emptor... :evil:
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Re: Panasonics NCR18650A from taobao. Total $6.64 each

Postby cwah » Sat Jun 30, 2012 6:08 pm

That still seems to be a lot of work for a 1000wh pack, and probably a nightmare to find a dud cell.
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Re: Panasonics NCR18650A from taobao. Total $6.64 each

Postby iperov » Sun Jul 01, 2012 3:14 am

texaspyro wrote:Cells are probably Panaphonies and not Panasonics... I've never see a legit and/or properly spec'd 18650 cell come out of China. Caveat emptor... :evil:

as you wish bro.
You just dont know all situation.
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Re: Panasonics NCR18650A from taobao. Total $6.64 each

Postby t3sla » Sun Jul 01, 2012 4:36 am

Shouldn't they have QR codes printed on the labels???
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Re: Panasonics NCR18650A from taobao. Total $6.64 each

Postby iperov » Sun Jul 01, 2012 5:14 am

no
Sorry, bad english!
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Re: Panasonics NCR18650A from taobao. Total $6.64 each

Postby iperov » Fri Jul 13, 2012 4:43 am

janetang wrote:
However, it is pity i can not open the link: http://www.yoybuy.com/en/Product/Search?Keys=NCR18650A
It shows that:
Image

and find some here:

because YOYBUY automatically filter batteries from search, because yoybuy do not work with batteries.

I used this direct link
http://item.taobao.com/item.htm?id=1598 ... 001318.0.0
THROUGH -> WWW.TAOBAOTRENDS.COM - this agent!!
$6.64 is price that I got include shipping to my expensive-shipping country Russia.
Sorry, bad english!
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Re: Panasonics NCR18650A from taobao. Total $6.64 each

Postby iperov » Fri Jul 13, 2012 4:47 am

Image
Image
764$ / 115 qty = $6.64
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Re: Panasonics NCR18650A from taobao. Total $6.64 each

Postby texaspyro » Fri Jul 13, 2012 10:59 pm

You could buy a Tesla Model S and get over 7000 cells for around $50,000. You keep the batteries, and I'll take the carcass off of your hands for free :twisted:
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Re: Panasonics NCR18650A from taobao. Total $6.64 each

Postby Teh Stork » Sat Jul 14, 2012 5:20 am

Interested to see if these are legit or not :)

Cycle count life?
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Re: Panasonics NCR18650A from taobao. Total $6.64 each

Postby iperov » Sat Jul 14, 2012 7:34 am

Teh Stork wrote:Cycle count life?

300 = 80% capacity
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Re: Panasonics NCR18650A from taobao. Total $6.64 each

Postby iperov » Mon Jul 23, 2012 10:57 am

texaspyro wrote:Cells are probably Panaphonies and not Panasonics... I've never see a legit and/or properly spec'd 18650 cell come out of China. Caveat emptor... :evil:


Received 115 pcs Panasonic NCR18650A.

I checked capacity of random element.

0.3C discharge
1st cycle: 2300mah to 3V, 2850mah to 2.5V
2nd cycle: 2500mah to 3V, 3050mah to 2.5V

my new 24V pack:
please no criticism for quality of build xD xD
Image
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Re: Panasonics NCR18650A from taobao. Total $6.64 each

Postby 999zip999 » Mon Jul 23, 2012 11:54 am

You may have an extra wire from cell block to cell block. As I have goon from start to end of one cell block then one wire on end of parelle to begining a next cell block to a connection wire to beginging of next cell block. As running thru the full parelle group. Don't know if right or wrong just the way I have done it. Maybe I need that extra wire ? On each cell block ?
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Re: Panasonics NCR18650A from taobao. Total $6.64 each

Postby iperov » Mon Jul 23, 2012 12:30 pm

need extra wire if you planning replace elements in pack in future, because after many cycles internal resistance will be different
i am not planning, so no problems xD
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Re: Panasonics NCR18650A from taobao. Total $6.64 each

Postby migueralliart » Mon Jul 23, 2012 1:57 pm

Are you going to shrinkwrap them ?

Also what glue did you use to keep em together?

I hope the packs works well for you!! I wish you could've done a 2C or 5C discharge graph or something.
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Re: Panasonics NCR18650A from taobao. Total $6.64 each

Postby iperov » Mon Jul 23, 2012 2:03 pm

14-17A my working amperage on 24V geared light hub.
So it less than 1C :)
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Re: Panasonics NCR18650A from taobao. Total $6.64 each

Postby iperov » Mon Jul 23, 2012 2:15 pm

Sorry, bad english!
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Re: Panasonics NCR18650A from taobao. Total $6.64 each

Postby toolman2 » Mon Jul 23, 2012 6:48 pm



it depends on your climate and discharge current, but the hot glue does tend to melt at some of the higher but relatively normal cell temps, seems to me from using it on 18650's that hot glue goes soft at a lower than full melt temps.
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Re: Panasonics NCR18650A from taobao. Total $6.64 each

Postby iperov » Sun Feb 03, 2013 10:29 am

received $4.2 each with shipping through black hole xD

There is >2500 wt/h
Image
Last edited by iperov on Sun Feb 03, 2013 10:29 am, edited 1 time in total. View post history.
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