Quote:
Originally Posted by Daox
A GOOD efficient/aerodynamic/light car will use 250Wh/mile. You can calculate your range with that.
Higher voltage will give you more power as will a higher amperage controller. Also, being as those are only 7Ah cells, I would be wary of pulling a lot of amps out of them quickly. They only have little tabs. I was going to use these same type of batteries on my mower, but decided to use larger batteries instead.
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Higher voltage allows for a lower amperage draw, correct?
I'd use bigger batteries......but these were free.
I'm going with one of Paul's new beta "Killa-Amp" controllers. Overkill for small stuff, but if I'm going to do it, I'm going to do it right. ONCE.
I don't have the available funding to buy a controller outright, but I can space components out over time and actually end up having it sooner that way.
Anyway, let's do some math.
I've got 64x 12V, 7.2Ah batteries.
That's the same as 8x 96V 7.2Ah batteries.
8x 7.2Ah = 57.6 Ah total @ 96V
96V * 57.6Ah = 5529.6 Wh; 5.5296 kWh
Let's use 300 Wh/mi for now, 80% DoD:
5529.6% * 0.80 = 4423.68 Wh @ 80%
4423.68Wh / 300Wh/mi = 14.746 miles
so yeah, we'll call it 15 miles range. I did all the math right, yes?