How much power does it take to keep the Honda CRX rolling?

12KW or 15Hp at 55 mph

http://www.engr.colostate.edu/~allan/fluids/page8/power/power.html

To accelerate to 60

http://www.engr.colostate.edu/~allan/fluids/page8/Accelerate/accelerate.html

25hp

+++ for a Saturn:
625 Wh/Mile
That is my AC power average as metered from my AC plug over the 326 cycle and 6206 mile life of my first battery pack. (So this is including battery charging losses.)

MetricMindCRX:
Updated actual rolling resistance measurement done in opposite directions at low speed (30 mph) revealed that ACRX draws 14.7A average at 326VDC pack voltage. This amounts to 4,792 W of power. If I’d drive like that for 1 hour, I’d cover 30 miles and spend 4,792 Wh. So, energy consumption, then, is 4,792 Wh / 30 miles = 159.7 Wh/mile. With 14,600 Wh of useable energy on board (20% SOC) theoretically this would give me 14,600 Wh / 159.7 Wh/mile=91.4 miles range.

So Lets see:

A CRX at 30MPH = 159 WH/M……. this is way low because of the 30MPH parameter

A Saturn at driving speed = 625WH/M…… this should be high because it is a Saturn, and includes charger losses.

Lets just say 400WH/M at 55MPH for a starting place.

* 70 miles is 28K WH for a typical day. Say 30K WH to make it easy.

Lipos are sitting at about $ .70 / WH, so $21,000 of batteries , 425 LBS

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