WIllie2, My reply to Mark has a link to the Alibaba page.
Sorry, I don't have an album. Go to the link and look at the other pictures there. My EV is an Organic transit ELF. Pedal assist gets me the upper few mph and improves range. I can't find this much battery using 38120 cells, for instance. Just buying 32 10Ah 38120 cells alone costs $400 to $500, then they want $200 for shipping. The battery sold with the ELF is 10Ah 48V. Not enough for my commute. There are pictures of this battery exposed in the album also. I think it is a fine battery, just too small and too many $. Probably better for production where you have to own up to its performance. My 20Ah battery is mine at my own risk and OT rightfully does not want to hear much about it from me if I have problems. We will see how bottom balancing the welded pack goes. I have not got all I need to do that yet. BentMike On Thu, Nov 7, 2013 at 2:52 PM, Willie2 <[email protected]> wrote: > On 11/07/2013 12:30 PM, Michael Ross wrote: > >> I use about 0.8Ah / mile with nominal 48V pack. Roughly 40W/h/mile >> averaging 24mph for the 25 mile commute (country 2 lane 80% of distance >> then urban for the remainder). I charge up at home and at work. I guess >> I >> am buying about a kW each time for $0.12. The charger is 60VDC, and shuts >> off at 56VDC. 56VDC/16 cells = 3.5V per cell. There is a BMS of >> uncertain >> function that is supposed to balance the cells. I only have about 1000 >> miles on it. >> >> I just did a teardown and repackage of the cell pack, and it was made of >> 18650 cells - 96 of them in banks of 6 in parallel, 20Ah in a bank. >> Interestingly, I can buy this pack with BMS, charger, air shipping for >> $445. $22.25 / 48V Amp hour. $445 / 96 = $.63 / cell (ignoring the >> extras). Hard to ignore shipping from China though - it is usually $200 >> or >> so. I guess the pack is sort of only $250. >> >> Care to name your source? > > I didn't find you in EVAlbum. > > Is this a two wheeler? > > Correct me if I misinterpreted but I make your pack to be about 1kwh? The > cost seems to be about the same as for prismatic LFP cells but you got the > BMS, charger and shipping included? Sounds like a great way to go it it > works. And lasts. > > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > http://lists.evdl.org/listinfo.cgi/ev-evdl.org > For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/ > group/NEDRA) > > -- Put this question to yourself: should I use everyone else to attain happiness, or should I help others gain happiness? *Dalai Lama * Tell me what it is you plan to do WIth your one wild and precious life? Mary Oliver, "The summer day." To invent, you need a good imagination and a pile of junk. Thomas A. Edison<http://www.brainyquote.com/quotes/quotes/t/thomasaed125362.html> A public-opinion poll is no substitute for thought. *Warren Buffet* Michael E. Ross (919) 550-2430 Land (919) 576-0824 <https://www.google.com/voice/b/0?pli=1#phones> Google Phone (919) 631-1451 Cell (919) 513-0418 Desk [email protected] <[email protected]> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20131107/c8cb3294/attachment.htm> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
