You already stated you are not going to sink a lot ca$h into a new pack, so upgrading to li-ion is out http://www.batteryspace.com/LiFePO4-Prismatic-Battery-12.8V-100Ah-1.28-KWh-10C-Rate-Without-Balance.aspx?gclid=CMLpiva2-bgCFe4-MgodT2IAIg
I will assume the EV that needs a new pack is not http://www.evalbum.com/4648 You did not mention what model Trojan battery it was, but looking at http://www.trojanbattery.com/pdf/TRJN0175_RECColl.pdf and http://www.trojanbattery.com/pdf/trjn0111_prodspecguide.pdf models: 31XHS, 30XHS, and SCS225 are all 57 minutes @75A and weight ~67lbs. Making the total pack weight of 670lbs. http://www.usbattery.com/usb_productline12v.html http://www.batterysalesandservice.com/usb_golf_fly_2a_08.pdf Their model US 12V XC is rated 77 minutes @75A weighing 90lbs, which would give a pack weight of 900lbs (A 15% increase in capacity=range, for a 34% increase in pack weight) Going to 8V batteries is going to increase your pack weight, and cycle life. Trojan showed some new 8V battereis, see http://www.trojanbattery.com/Products/TravelerRanger.aspx I suggest you look at spending the money for the better brand to maximize cycle life, and time between pack replacements. For my money, I would use Trojans, with the next tier (second choice) being: -I have read drivers stating they like Crown. For me, I have not tried them, -US Battery would be my second choice. They ost less, and you get less. If you go any cheaper, expect less cycle and pack life, and you will be spending more time replacing batteries (going cheap costs you more money and time in the long run). Find a battery dealer near Atlanta, GA http://www.trojanbattery.com/tools/dealers.aspx https://www.crownbattery.com/distributors https://www.crownbattery.com/en/wp-content/uploads/2012/07/SalesRegions-SLI-2013.pdf http://www.usbattery.com/usb_ga_contacts.html {brucedp.150m.com} - On Mon, Aug 12, 2013, at 05:57 PM, Steve Powers wrote: > I have 2 EV's right now and usually I tried to avoid cars with 12V > batteries for this very reason. Both cars were purpose built for short > range. One has only 10 batteries - Group 31 Interstate batteries, 120V > system on only 10 batteries. The honest range on that car is probably > 15-18 miles. It has a 9" motor and 550 Amp controller with regen. The > other car has Trojan "T1275 plus" in it. Same motor, 144V 500 Amp Curtis > controller, no regen. There are a total of 12 of those batteries in it. > Believe it or not, the Trojans have about 15,000 miles on them, over 4.5 > years of use (not by me). I have no idea how many miles are on the > Interstate batteries, but probably < 2000. The Trojans are shot. They > are > so bad I wouldn't even take it on the street the way it is. I drive the > other car, but it has a lot less miles on it. > > Some research shows that those Interstate batteries only have a cycle > life > of about 85-100 cycles. Seriously, that it what I read on-line. No > wonder > they are near dead. > > The Trojans supposedly have much better cycle life, maybe 400, 500, 600 > cycles, so I have read. Buy, I am looking for real world experience on > either of these batteries. I'd like to replace the pack in the 144V car, > but not too sure I want to drop $2700 on 12 Trojans. The dealer is > offering Crown batteries, same foot print and rating - slightly cheaper. > I > not so sure about the quality of them. > > I drive the car about 16 miles a day, speed 40 MPH, some slight hills up > and down. The 120V car has regen. The 144V car does not. > > I'm looking for a battery recommendation - Not Lithium. I don't see > these > cars as worth the $7k it would cost for the Li pack, BMS, and new > charger. - -- http://www.fastmail.fm - Access all of your messages and folders wherever you are _______________________________________________ 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)
