Pretty much your only option is a pick-up with a tonne of lead.
That's what I've figured. I can't get any GVWR on vans or mid sized SUVs as a possible platform so far.
I'd probably go 144-156V with a 9 inch motor minimum, and a tonne of trojans.
I wonder why no one has a system voltage of 150V? If you're running 6V batteries, what's wrong with having exactly 25 of them?
I also wonder is there some pivot where it's better to split the pack as opposed to continuing to run up the voltage. The Red Beastie carried 40 6V batteries arranged in 2 120V strings. But that's a whole lot of lead to be slinging around. Say you're comfortable with 30 batteries. A 180V pack will severely limit your motor choices. But would you lose significant capacity to Peukert if you ran 2 strings of 90V?
My current thinking is that if I want the pack to last more than a few cycles, it can't be discharged to 80% DoD each and every run the vehicle makes. So that means either the batteries are going to have to carry more Ah (like the EvIII under 1724) or up the voltage nearer to 200V.
Now when it comes to batteries, I know it's an issue of you get what you pay for. But when it comes to cost/Wh what's the justification for buying Trojans or frankly anything else other than the Johnson Controls 6V 225Ah LA badged as the Eveready GC2 at Sams? At $75 each including the core charge, that's less than half the price of a Trojan T-105 for the same capacity. The fact that they are cheaper means that you can actually sling more lead into the pack, which in theory would make the pack last longer.
You'd probably want some aero-mods too.
Definitely. I've already been reading on ecomodder. I'm wondering if mirror deletes are street legal if you replace with interior side mirrors. But the angled bed cover, front dam, belly pan, wheel covers, and lowering the chassis are all on the table. This is a no brainer because every watt I can save in the pack and not give to the pavement will improve both the cost and the pack of the vehicle.
What is your motivation for going electric for the commute? I just don't know if it works out either money or efficiency wise to carry that much lead. I'd just buy a honda insight and get 70mpg on the highway, that ~2 gallons for the round trip.
Fair question. There are a bunch of factors:
1) Controlled costs. Gas costs are spiraling out of control with no end in sight. One cannot budget for gas yet one must absolutely have it in order to function in a gas vehicle. Electricity cost less per mile to operate and Electric utilities are a state regulated monopoly. So they cannot jack up prices without putting in a formal request.
2) Comfort. My wife is driving a big SUV right now. She's not going to be happy riding around in a low slung, cramped sedan. So any compromise I can make between the two will help.
3) Shared costs. One recharge a day will be at work. So her job will be sharing the cost of the commute.
All of this is still in the feasibility stage. The only known advantage I have right now is that she does know how to drive a 5 speed.
I wonder how easy it would be to get a truck and load it up with 3/4 ton worth of load just to test its drivability?