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Old 06-25-2014, 03:22 PM   #1
mhynd
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Default 36v to 48v - Is it worth it?

So I called and talked with a guy at D&D about a high torque motor for my cart build. Told him I was going to 48v and he asked why. Told me that I would not see any real gain as far as torque but maybe a little more run time. Is this true? I keep reading about everyone saying make the jump to 48v.
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Old 06-25-2014, 03:29 PM   #2
yurtle
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Default Re: 36v to 48v - Is it worth it?

What type system do you have?

Controller/Motor Type:
http://www.buggiesgonewild.com/attac...go-guide-2.jpg

http://www.buggiesgonewild.com/elect...en-system.html

A series will definitely go faster. Sepex motors have a speed sensor, so until you upgrade the controller, the stock controller will limit RPMs.
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Old 06-25-2014, 03:41 PM   #3
mhynd
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Default Re: 36v to 48v - Is it worth it?

Just getting started on the build. Plan on running 500amp controller to Sepex motor.
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Old 06-25-2014, 03:48 PM   #4
yurtle
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Default Re: 36v to 48v - Is it worth it?

I'll let others answer as I'm a series guy, but I think you'll hear that it's worth it. As to run time, that may depend on how you achieve it. Eight 6 volt batteries is going to have a higher amp-hour (runtime) than six 8 volt batteries.

EDIT:
In rereading this, it's possible to misinterpret the "runtime" as just meaning amp-hours = runtime. It was really intended to be for the whole sentence, if that makes sense.
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Old 06-25-2014, 05:40 PM   #5
Knothead
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Default Re: 36v to 48v - Is it worth it?

Only the PDS has a speed sensor. DCS like mine doesn't. I saw a VERY significant increase in both speed & torque when I went to 48v! ScottyB can give you good advice about what to expect with the different systems. Maybe he'll chime in shortly......
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Old 06-25-2014, 05:45 PM   #6
yurtle
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Default Re: 36v to 48v - Is it worth it?

I can't go one day around here without learning something.
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Old 06-25-2014, 05:55 PM   #7
northwestfarmtn
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Default Re: 36v to 48v - Is it worth it?

hmmm I am watching this one... I have a high torque d&d motor on my cart with a 480 amp controller. I am 36n it until I need a new set of batteries at 36v I am getting 13mph on flat ground maybe 14 if I have a 1000ft running start. I am looking for more speed on the flat and more torque up the hill
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Old 06-25-2014, 05:55 PM   #8
Knothead
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Default Re: 36v to 48v - Is it worth it?

Quote:
Originally Posted by yurtle View Post
I can't go one day around here without learning something.
You aren't the only one! I've learned more about these things than I wanted to know on this site! Some of it from you!!
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Old 06-25-2014, 06:03 PM   #9
yurtle
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Default Re: 36v to 48v - Is it worth it?

Quote:
Originally Posted by Knothead View Post
You aren't the only one! I've learned more about these things than I wanted to know on this site! Some of it from you!!
The trick is remembering it all.
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Old 06-25-2014, 09:20 PM   #10
Knothead
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Default Re: 36v to 48v - Is it worth it?

Quote:
Originally Posted by yurtle View Post
The trick is remembering it all.
What were we talking about?
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