Hi Lawrence, My experience with Thundersky (now Winston I think) says that you won't get 500-700 amps out of them. I consider 300A max and usually try not to pull more than 200A. You might get that much from CALB, but I think 300-500A is more realistic. I have heard that they make 3-5C ok, where the Thundersky are 3C at best.
I have been very happy with my miniBMS and Elcon charger. I wouldn't risk a dumb charger with lithium cells. With a good BMS you might get away with it, but I like knowing that the charger normally terminates charge automatically and the BMS is a backup. With a dumb charger, you are depending on the BMS to terminate charging. I get 50 mile range with 45 100Ah cells on tne Honda del Sol. I think the miniBMS is about $10-12 per cell plus about $60 for the main control. I don't know if it's the cheapest, but it does the job. I have the version with shunts. I find they aren't enough to balance a pack that is out of balance, but I find they can keep it in balance. I use an RC charger to top up cells to get the pack in balance. Mike www.evalbum.com/2778 > -----Original Message----- > From: [email protected] [mailto:[email protected]] On > Behalf Of Lawrence Rhodes > Sent: Saturday, June 08, 2013 7:17 PM > To: Electric Vehicle Discussion List > Subject: [EVDL] 100ah pack on the cheap > > I've checked out some Chinese battery suppliers and seems prices are > around 100 dollars a cell. A 144v pack will be 45 or so cells. Should yield a 50 > mile usable range on the Ford Aspire. What is the best supplier and battery > for the money? Could a regular K&W work as the charger? Trying to do this > on the cheap. What is the best bargain in BMS? I've been into lead so long I > need advice on the best way to go on lithium. The 144v system draws 500 to > 700 amps > max. Lawrence Rhodes > _______________________________________________ > 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) _______________________________________________ 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)
