EV battery pack conversion complex? Yes and No
Check this simple diagram and ask yourself, ** Can I do this? **
The basic simplicity of the Electric Vehicle can make one wonder at the needless complexity and inflated prices * Big Auto * likes us to believe are warranted for simple transportation.
This is an excellent EV conversion project by Nick = http://DriveEV.com
The converter :
Even the 400v to 12v DC to DC converter need not be connected to the drive current supply.
For accessory lights and battery charging. I would prefer an independent charger system because the converter needs to throw off a lot of wasted heat.
The function of the main breaker is the obvious safety device. Not so obvious is the inertia breaker in case of a collision accident. One more safety feature is the dash mount pull to open the main breaker via mechanical cable tripping.
10 deep-cycle gellCell batteries = 120Vdc @ $120 each = $1200
[ Heavy, should do until light, Hi-density batteries are reasonable in price. ]
400 Amp DC motor
Used DC9 400 amp DC motor Model FB-1 - 4001A = $
[Surplus auction or used military airfield supply]
These are the main elements to consider before getting started. You can get full conversion kits and they generally start at $9K , [ without batteries], so if you go this route it will be a month or two before you break even on gas savings.
Ken, gets his conversion supplies from Canadian Electric Vehicles Ltd Errington B.C. here on Vancouver Island just inland from Parksvill up from Nanaimo.
Temptation, . . . Eh? = TG