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RAV4 EV Specs

1.7K views 1 reply 2 participants last post by  JRP3  
#1 ·
Hello people. My project is to give a 3200 lbs car a range of 100 miles at acceptable speed. Official Toyota RAV4 EV conversion matches my aspirations. And I've found that

Nominal Capacity (C/3): 95 Ah (taken from avt.inl.gov/pdf/fsev/eva/toyrav98.pdf)

Does this mean that 95 Ah is sufficient for 3500 lbs car to cover 110 miles at 45 m/h speed?

I thought more amps = bigger range. And what does (C/3) mean?
 
#2 ·
Range also depends on the voltage of the pack. Pack voltage times amp hours gives you Kwh. Take your pack Kwh or watt hours divided by the watt hours per mile the vehicle uses to figure mileage. So, a 95 ah x 100 volt pack gives you 9500watt hours, or 9.5 kwh. If your vehicle uses 300 watt hours per mile you get 31.6 miles. A 95 ah x 200 volt pack gives you 19000 watt hours, divided by 300 wh/mi you get 63.3 miles.
I read "C/3" as one third the ah rating, so with a 95 ah pack that means you'd be pulling 31.6 amps continuous. C rating relates to amp draw from the battery, 1C being 95 amps in this case, 2C = 190, etc.