Originally Posted by EVEngineeer
I'm sorry but that calculator is to much for me..
How is that possible? They already fill it out for you with an "average" car like the Passat. Look at the watts needed to go 70mph. 15000w. My 3rd grader knows that 15000w = 15kw. If you drive at 70 for an hour you will need 15kwh and go exactly 70 miles. But you want to go 100 miles so you take 15 x 1.3 and get 19.5kwh. Since the battery will weaken with age you need to start out using 70%. 19.5 x 1.3 = 25kwh.
If you get a small aerodynamic car and do a few aero modds (ecomodder.com) you can get that down to about 12 x1.3 x1.3 = 20kwh
If you run a 120v system it would be 20000w / 120v = 160ah batteries
If you run a 240v system it would be 20000w / 240v = 83ah batteries
Now since this is just an estimate you should get another 20% just to be safe. So you are in the 24-26kwh range for your pack.
I get a price of about $10,000 minimum for the pack. But I am terrible at doing math in public and probably made a glaring mistake..
If you read a couple of blogs or build threads they will explain all this for you. If you are 5 years out from building, then read for a bit, there is no need to hurry.