In the past we have used the Mini BMS on low voltage projects like Electric Lawn Mowers and Golf Carts. Now that Clean Power is no longer, I have been beta testing other BMS'. There are many different boards on Ebay that can handle up to 22 cells and do a small amount of balancing. 60ma seems to be typical. They have a bank of Mos-fets that will turn OFF the power to the motor or turn OFF power from the charger. These looked to be designed for bicycles since they handle less than 100amps. ( which makes them unsuitable Golf Carts) I have been contemplating a way to use this to turn OFF a relay, which would then turn OFF the main contactor and the charger. The problem is, on the Charger side, the circuit is looking to see current flowing in to the battery, so to power a relay, I am going to need a supply that is more than the charged voltage of the battery pack plus the voltage rating of the relay. There may be some way to tap in to the gate of these mos-fets. The way these are commonly set up, when the voltage is too low, one bank of Mosfets turns OFF stopping the power drain, but the other side stays ON, allowing charging. I am wondering if anyone has tinkered with one of these?
I have not seen this reported, but, it seems that Evenetics, (Soliton Controller) is having issues. They seem to be only making the controllers when they have an order for 10 or more. I do believe they are still doing repairs, but I am not positive of that. Even with the price of gas staying down, we still are seeing sustained interest in EV Conversions. We seem to be moving more towards older "Memory Cars", like my wife's 1956 Ford F500 and her 1967 Austin. I am presently converting a 1966 MG Midget for a customer. ( Web page under construction, but you will be able to see some pic's under the tab SUMMER ROAD TRIPS, Summer of 2017). Our most popular program, and probably what has kept us going is our "Assisted Program". Where the customer and I do the conversion together, giving the customer "hands on Experience". -- Steve Clunn Merging the best of the past with the best of the future. www.Greenshedconversions.com _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Read EVAngel's EV News at http://evdl.org/evln/ Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
