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Environment & Energy

dmallind

(10,437 posts)

16. that efficiency is a tad low

Reply to TheWraith (Reply #1)

Wed Mar 14, 2012, 01:20 PM

Mar 2012

I'm averaging 4.6m/kwh at considerably more than 35mph (my work commute is almost all free moving highway or 50mph trunk roads), and I'm far from an efficiency leader. Some folks are getting high 5s even low 6s for entire charge cycles.

But your conclusion is sound of course - he will not go very far or very fast. EVs have about 80kw output batteries on average with 16-80kwh capacity

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You can drive an electric car with only two 12v car batteries! [View all] txlibdem Mar 2012 OP

Standard car batteries contain roughly 80 amp-hours of electricity. TheWraith Mar 2012 #1

The battery pack in the Chevy Volt is 400V (IIRC) txlibdem Mar 2012 #8

Watt-hours determine range, voltage determines potential torque. TheWraith Mar 2012 #15

that efficiency is a tad low dmallind Mar 2012 #16

You're right, it probably is, at least for 35 MPH. TheWraith Mar 2012 #17

The bugger with EVs is "it all depends" dmallind Mar 2012 #18

Does it only work on snow? immoderate Mar 2012 #2

Just not very far zipplewrath Mar 2012 #3

And his car is a lot heavier txlibdem Mar 2012 #9

Do better with bigger cables zipplewrath Mar 2012 #14

I know what you mean. He's gonna need cables 5 times as big. txlibdem Mar 2012 #20

Ha! Very cool, indeed. I like the dog, too! nt MADem Mar 2012 #4

I had a converted MGB for a while. tinrobot Mar 2012 #5

sweet txlibdem Mar 2012 #10

Absolutely got the grin... tinrobot Mar 2012 #19

Congrats on the Active E txlibdem Mar 2012 #21

So now you've got an even bigger EV grin? txlibdem Mar 2012 #22

You could drive a standard car with a single battery… OKIsItJustMe Mar 2012 #6

Well... I wouldn't try my commute like that I'll tell ya that much txlibdem Mar 2012 #7

I'll confess to doing that... Dead_Parrot Mar 2012 #11

Worth it for the captions for the dog. joshcryer Mar 2012 #12

He just wanted to come along for the ride txlibdem Mar 2012 #13