When I planned my current EV project I decided I'd like to keep the weight down. So I thought I'd go with 12-12v batteries for 144vdc. But now the more I learn and the more I think about it, I'm thinking that compared to 96v, 144v will give me a lot of top end speed but doesn't necessarily contribute to range so much, other than adding a couple more batteries.

So I'm wondering if a 96vdc system with 16x6v would be a better solution for my needs? Voltage has little to do with how well it accelerates, right? That's a function of amps, right?

As I understand it, the more voltage that's applied to the motor, the faster it spins. All I need is 70mph top sustainable speed. So is it unreasonable to think that 16 240Ah 6v batteries would give me the required top end but a whole lot more range than 12 150Ah 12v batteries?

BTW, I'm using a 9" Advance DC motor and a Zilla Z1K controller in a 2000 VW Passat.

Thanks in advance for any info.

-Rick Stewart