That seems quite high. For about $5000 you could get a LiFePO4 pack and still be driving it as long as you didn't over charge or over discharge the cells. I know many think you must have a cell level BMS but so far I'm not seeing the theoretical problems on my pack and it has been over 2 years since I did a balance on it. If you can get to the pack readily you might consider a bottom balanced pack, an Ah counter, and a charger set to not charge over 3.5vpc and you will have a good system. Access to the pack will satisfy you that it is still healthy.
As for the 685 charge cycles, if you didn't drive very far and didn't need the extra range for the next day's trip, maybe they would have lasted longer if you charged less often or at least only did an equalize charge once/week or month. On Sun, Nov 24, 2013 at 5:55 PM, Jay Summet <j...@summet.com> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > I'm replacing the 20 six volt lead acid golf cart batteries in my 1995 > Chevy S10 conversion after 2.75 years (1008 days). My total cost of > ownership (electricity, batteries, maintenance) works out to $0.66 a > mile (not counting fixed insurance/registration costs). $484 > electricity, $2,171 battery, and $610 maintenance. > > I drive relatively short distances each day, and so have only put > 4,861 miles on it over 1008 days, and 685 charge cycles. I expect my > cost per mile would be less if I were driving longer trips each day. > > The batteries were originally purchased at Sams Club ( Energizer > Johnson Controls) for $1,800 but I'm using the $2,171 replacement cost > at Interstate to calculate the cost of ownership. If I used the actual > purchase price for this pack it would be $0.59 per mile. > > The full writeup can be found here: > > http://www.summet.com/blog/2013/11/24/electric-pickup-truck-cost-of-ownership/ > > > Jay > > P.S. I did not burn 242.5 gallons of gas. > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.10 (GNU/Linux) > Comment: Using GnuPG with undefined - http://www.enigmail.net/ > > iEYEARECAAYFAlKSrfgACgkQSWJjSgPNbM8y2ACfYjIWUeIOmjQsWqKHKeXkiytK > cGcAoJJu8ChBeTD9Kf6MFM9kJjQAWrDg > =KQn9 > -----END PGP SIGNATURE----- > _______________________________________________ > 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) > -- David D. Nelson http://evalbum.com/1328 http://www.levforum.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 NEDRA (http://groups.yahoo.com/group/NEDRA)
