Re: [EVDL] self-discharge of CALB 180Ah LiFePO4 cells

2014-04-22 Thread David Nelson
> Anyone have a solution to this quandary other than a full bms? Half pack voltage monitor. Lee Hart proposed this years ago and a slight modification and installing a volt meter that reads double the input voltage will give the half pack voltage difference. The chance of cells in each half of th

Re: [EVDL] self-discharge of CALB 180Ah LiFePO4 cells

2014-04-22 Thread Michael Ross
t;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 michael.e.r...@gmail.com -- next part -- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20140422/9583236d/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)

Re: [EVDL] Charging your EV pack from other batteries?

2014-04-22 Thread Lee Hart
Dan Baker wrote: Thank you everyone for the replies so far- as hoped lots of fantastic info! So it sounds like Cor's idea and Marco's drawing are my best bet. So I guess my only other question would be around this charging scheme is would I need to regulate the charge control once the EV pack

Re: [EVDL] self-discharge of CALB 180Ah LiFePO4 cells

2014-04-22 Thread Hoegberg
Yes, I think it is a good idea. I did get me 8 pcs of 26650-size LiFePO4 cells, 3Ah (peak/k2/dlg -ev cells) Just by using 4 or 8 cells and playing with loggers and multimeters, charging /discharging at differewnt rates and temperatures, different rates and time at end of charge  and so on, all

Re: [EVDL] self-discharge of CALB 180Ah LiFePO4 cells

2014-04-22 Thread EVDL Administrator
On 22 Apr 2014 at 9:06, tomw wrote: > I also agree with Jukka's other comment regarding new people. That is a > critical time, when you don't know what you are doing, have no experience and > understanding from repeated measurements on your cells. This is the reason that when I decided to try li

Re: [EVDL] self-discharge of CALB 180Ah LiFePO4 cells

2014-04-22 Thread tomw
I also have 180Ah CALB SE (blue) cells. 32k miles, 4 1/2 years, over 1k cycles, no noticeable change in range (but no quantitative discharge to measure capacity with powerlab8 or similar). Still can drive about 75 miles mixed highway/city. I first had a defective bms, then no bms, then minibms wit

Re: [EVDL] self-discharge of CALB 180Ah LiFePO4 cells

2014-04-22 Thread Marcus Reddish
t; > > > > manufacturer, are really happier with the results. No more stagnant > > at > > > > rest > > > > > loses that you have experienced. Look at what cells are used in the > > > > popular > > > > > plugin cars th

Re: [EVDL] self-discharge of CALB 180Ah LiFePO4 cells

2014-04-22 Thread Jukka Järvinen
y don't even recognize their one year warranty. You > wonder > > > why > > > > you are having problems, wake up and smell the coffee. > > > > > > > > > > > > > > > > -- > > > > View this message in context

Re: [EVDL] self-discharge of CALB 180Ah LiFePO4 cells

2014-04-22 Thread Hoegberg
___ >> 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) >> >> > ---

Re: [EVDL] self-discharge of CALB 180Ah LiFePO4 cells

2014-04-22 Thread Evan Tuer
gt; > > > > > > > > > -- > > > View this message in context: > > > > > > http://electric-vehicle-discussion-list.413529.n4.nabble.com/self-discharge-of-CALB-180Ah-LiFePO4-cells-tp4669067p4669069.html >

Re: [EVDL] self-discharge of CALB 180Ah LiFePO4 cells

2014-04-22 Thread Jukka Järvinen
ric Vehicle Discussion List mailing list archive at > > Nabble.com. > > ___ > > 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 N

Re: [EVDL] Charging your EV pack from other batteries?

2014-04-22 Thread Dan Baker
DRA ( > http://groups.yahoo.com/group/NEDRA) > > -- next part -- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20140422/a312e2c7/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)

Re: [EVDL] self-discharge of CALB 180Ah LiFePO4 cells

2014-04-22 Thread Marcus Reddish
ttp://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) > > > > > -- next part -- > An HTML attachment was sc

[EVDL] East Bay EAA meeting this Saturday 10-12 at McKevitt Fiat, Berkeley, CA

2014-04-22 Thread Ed Thorpe
Christie Park in Emeryville, subject to be Side-by-side Comparisons of several EVs. EVs in parking lot after meeting. www.ebeaa.org -- next part -- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20140422/b47dd877/at

Re: [EVDL] Costco GC battery rating

2014-04-22 Thread Bruce EVangel Parmenter
I do not have personal experience with those cheaper batteries, as it has always been my experience that you get what you pay for. If I had a 96V EV that I was going to sell, having a working pack will increase the resale price, I might consider going with a less expensive battery. But many have

[EVDL] EVLN: Electric MG city car for hinted for Europe

2014-04-22 Thread brucedp5
http://evfleetworld.co.uk/news/2014/Apr/MG-hints-at-electric-city-car-for-Europe/0438014001 MG hints at electric city car for Europe 16 Apr 2014 by Alex Grant [image http://evfleetworld.co.uk/news/2014/Apr/images/0438014001-6946-Dynamo003_jpg-320.jpg Dynamo concept is based on the Roewe E50 E

[EVDL] EVLN: NHTSA found Bosch EVSE caused a fire, not the EV it was charging

2014-04-22 Thread brucedp5
NHTSA investigating Bosch Power Xpress 240V EV chargers for fire risk http://www.torquenews.com/1080/nissan-leaf-fire-blamed-faulty-charger-nhtsa-investigates Nissan LEAF fire blamed on faulty charger, NHTSA investigates By Aaron Turpen 2014-04-22 Another electric vehicle fire, this time invol

Re: [EVDL] self-discharge of CALB 180Ah LiFePO4 cells

2014-04-22 Thread Evan Tuer
DRA ( > http://groups.yahoo.com/group/NEDRA) > > -- next part -- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20140422/72edaa01/attachment.htm> ___ UNSUBSCRIBE: