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Old 07-30-2011, 09:49 AM   #22 (permalink)
Ryland
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Quote:
Originally Posted by cleanspeed1 View Post
I think you are looking at "battery only" operation and that's not how it works.
No, I'm looking at the generator size and thinking to my self that the math is not adding up so they must be pulling power from some place else and where else could they pull power from? how about that nice battery pack over there! then I'm looking at how every plug in hybrid is touted as getting great mileage because they have a set of batteries that are going to give say a 20 mile range so they go for a drive and exclame about how little gas they used but never talk about the electrical side unless pressured to do so, so you might get 90mpg on a short trip but the longer your trip is the worse your mileage will be.
Also going with a higher voltage then 36v or 48v is going to be more efficient because you are going to have less loss in your wiring, that low voltage also limits your top speed, my 48v electric car tops out at about 40mph because it starts drawing to many amps, I drove an electric car that had 3 sets of batteries, still all wired up at 48v with two 48v motors and that one, pulling over 600 amps could get up to 55mph, but the amp draw at that low voltage gets to be really high, a motor like an air craft starter motor is going to be designed to handle even more amps but you are still going to need massive wire.
I've seen Ben's plug in hybrid and quizzed him about it and his generator it seems is undersized as well for doing cross country trips but it does work for extending the range and aside from owning my own electric cars I do my best to get in the drivers seat whenever I can as well and check out the gauges as I'm driving.
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