Batteries from Taobao.com, ultra-capacitors

3805 Views 5 Replies 3 Participants Last post by sinobread, Jun 25, 2012

sinobread

Discussion Starter · Jun 24, 2012

I'm new to forum, just learning how to build EV - it is cheaper for me, because I'm living in China.

searching for batteries in Taobao.com, chinese ebay

What I found:

12v, 200Ah, 1088rmb (173$), other places similar power selling for 788RMB

http://item.taobao.com/item.htm?id=...li_trackid=1_bfec1d6dc6370d30e756e612ca809465

Lithium, 12b 50Ah, 2650rmb, (424$), weight 10kg

http://item.taobao.com/item.htm?id=..._2956818_10060724,0:1340433948_3k1_1783564695

Chinese now using ultra-capacitors batteries, less expensive and more rechargeable, up to 100 000 times

http://english.chinabuses.com/news/2012/0614/article_5505.html

I'm also searching for ultra-capacitors to build own batteries, it may be much less expensive

2.5v, 630F, 13RMB
http://item.taobao.com/item.htm?id=9897449079&_u=nl7jn38e865
2,5v, 2000F, 60RMB
http://item.taobao.com/item.htm?id=16543352275&_u=nl7jn38be21

http://www.alibaba.com/product-gs/515816854/super_high_capacitor.html
10000 F, 4 Ohms
2.7V3000F0.45 Oh, 63×140screw
any feedback will be greatly appreciated

Jan

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sinobread

Discussion Starter · #3 · Jun 24, 2012

Thanks Rick

not long time ago I was living in your area, Riverside-Ontario

Jan

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Thanks Paul.
Definitive, I will need help
What stopping me now?? Why conversion is soo expensive when on the markets are new electrical cars staring from very low, 3000-5000$? Of course, they may be completely different classes, but still. I also believe, that I can find more economical batteries, still don't know prices for 100 kF, even seen adv for 200 kF.

Chinese are having double pricing - one for international market mostly by traders, other for locals. Alibaba are for intentional market, I already found several product where prices are double what Chinese are paying.

Thanks for calculations, it is very helpful

Jan

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sinobread

Discussion Starter · #6 · Jun 25, 2012 (Edited)

ultra-capacitors

Ultra capacitors, it can be find for less

2000F, 2.3v, 36 RMB, $6.00+
http://item.taobao.com/item.htm?id=14860869766

other, Place of Origin: Zhejiang

Capacitance: 1/2-10hp

Part No.
Operation Voltage(VAC)
Recommended Range(HP)
Increase In Torque(%)
SPP*
90--277
1/2 to 10
250%
SPP5
90--277
1/2 to 10
300%
SPP6
90--277
1/2 to 10
500%

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