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. Steve -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20130812/c7184f23/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)
