Been reading the various posts here for a while now, and can't help but notice how many issues people are having with trying to use EV"s as daily transport, especially ones with a bit of power. Battery packs go out of balance and don't hold a charge right, chargers go bad often, controllers freak out, motors overheat, throttles break in various ways, switches get fried, etc. The range and speed capabilities never seem to live up to the claims either.
Right now, I only own some small EV's, a bicycle and small electric scooters. I have been researching converting a small Fiat to electric, but am beginning to wonder if its worth the trouble. Even factory designed and built EV's don't seem to be reliable at all compared to their gas powered counterparts. Heck, Tesla, with millions of dollars in backing, still doesn't have cars ready to deliver yet, as one problem after the next seem to keep coming up. I wonder what's going to happen to those hundreds of Lithium Ion batteries if their BMS goes bad.
Doug Canfield of EV tech has worked on many factory backed EV's, including the GM EV-1. He has told me some stories of spectacular failures, like electric Chevy trucks that would tear their drive shafts off if full power was given at speed. All types of batteries have failed in just about every way imaginable, and even some no one had ever imagined. The amps seem to always find the weakest point in the electric current chain and burn it up. Doug told me he had a flyer from Vectrix with "coming next year" on it dated from the 1990's. Doesn't seem like that bike has that toyota reliability thing yet over 10 years later.
What chance does an amateur have, even with experienced help available, to build something that isn't breaking its key components on a regular basis, if factory designed and build stuff can't holdup very well to normal use? Is the concept of using battery stored electricity to be converted to propulsion just a bad idea? Is high voltage, high amp DC current inherently difficult to work with? Is the torque generated by electric motors just too hard on drive components unless they are full race quality? I wonder if that's the reason most of the converted cars listed at the EV Album.com site are not finished.