Hi Dach and All, The most powerful and low cost controller is a contactor controller made from 5-6 contactors series/paralleling the batteries and a starting resistor and field weakening gives you 6 speeds plus transmission speeds. The field weakening really helps top in power. And CC have very high starting amps/torque so can outperform many E controllers. As many found out replacing Citi-Car and other EV CC's with E ones were very disappointed and had to go much higher amp controllers, 600+ amps, to come even close. For low cost chargers older Golf cart ones without circuit boards can be switched to 72vdc nom just by going to a full wave bridge rectifier instead of the full wave. I just built a manual switched CC for my EV Streamliner to simplify it. Just took some copper bar, some contacts, a SS ruler for spring action, epoxy, bolts and some wood for the insulating base and handle. KIS is the best, low cost EV way. Especially in your case so another can get a starter EV they can learn with. That beast 9'' motor is likely little different than those new for $1500-2k. And perfect for 4k lb, truck EV's and racers. Jerry Dycus
________________________________ From: Dach Savage <[email protected]> To: Electric Vehicle Discussion List <[email protected]> Sent: Saturday, August 3, 2013 4:56 PM Subject: Re: [EVDL] Looking for some parts I have a Curtis PMC floating around the Junqyard somewhere. IIRC its is 72 V. I got it with a Jet Electrica I had years ago and don't know anything about it. I would consider selling it, make me an offer or I would trade it for a higher voltage controller suitable for a motorcycle. Dach. ________________________________ From: Steve Powers <[email protected]> To: "[email protected]" <[email protected]> Sent: Saturday, August 3, 2013 7:21 AM Subject: [EVDL] Looking for some parts I am looking for some used old parts that you don't want any more. I have several EVs, but one in particular I want to lower the voltage (possibly as low as 72 V). The car is 120 V today and has a matched 120 V controller and charger. Both, believe it or not are not adjustable. It was very surprising to find out that the Zapi H2 controller set for 120 V specifically says in the manual don't run at any voltage other than 120 V, even lower voltages. I bet is has some low voltage cutoff so it won't work on other voltages. The charger like many doesn't have much adjustment. Anyway, the car has several weak batteries and I'm pretty much over it. I've moved on to another car. It makes no sense for me to replace the batteries on this car. The car is old and beat up. The controller and charger are worth far more than I can sell the car for. Even though it has a 9" motor, it's too much work to pull it out. That beast at 143 lbs is too heavy to mess with. And besides, I can't really drive it with mixed weak batteries. I put individual chargers on them and tried to drive it with limited success. Tried to sell the car, but I can't get what the controller and charger are worth. I can use those on my other EV. So, I'm looking for used old cheap charger (probably 72 V) and a controller for 72 V (something like an Alltrax 7245 or Curtis 24-72V / 400 Amp model). I can't pay much for them because the car after I swap the parts isn't worth much. But, I'd rather make it driveable, even at 72V and sell it dirt cheap rather than completely dismantling it and sending it the scrap yard. It does run very short distances. I can't see crushing a working EV. I did drive it a total of 50 miles this week (with a lot of recharging). But, I also can't sell it for 1/2 the controller and charger value either. This is unfortunately what happens to a lot of old conversions that simply aren't worth the cost of the battery pack. I've also been looking for a Rusco charger with boost transformer to use on my other car. Something that can adjust between 72 and 144V and run on a 15 Amp ckt without tripping breaker. Let me know what you have and I'll see if we can make a deal. Steve -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20130803/9ee74d9b/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) -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20130803/785e916b/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) -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20130803/0aaa7f9f/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)
