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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV. |
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02-26-2014, 12:01 PM | #11 |
Gone Wild
Join Date: Jul 2010
Location: Peachtree City, Ga.
Posts: 2,759
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Re: 36 Volt to 48 Volt conversion- battery cable lengths?
Cart came with a Curtis 400amp controller. Been running the 400 SPM since late spring. Motor is a GE d297. Been running it for ~ 2 years. Cart ran 17mph from new. With D297 would hit 20 mph under optimum conditions but took awhile to get there, would get to 16-17 quickly. But it's much better now!
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02-26-2014, 12:34 PM | #12 |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: 36 Volt to 48 Volt conversion- battery cable lengths?
@ kernal: Just curious, what is the size marked on the sidewalls?
My tire height spreadsheet says your motor is spinning at 5186 RPM at 22 MPH. About your cart taking some time to get to its top speed, try accelerating more gently when you are making a speed test. In a series cart, top speed is limited by the pack voltage and when you accelerate hard, you drag the pack voltage down and it takes a while for it to recover. The same thing happens with a sepex cart, but they are not quite as sensitive to small changes in pack voltage due to field mapping. |
02-26-2014, 12:47 PM | #13 | |
Gone Wild
Join Date: Jul 2010
Location: Peachtree City, Ga.
Posts: 2,759
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Re: 36 Volt to 48 Volt conversion- battery cable lengths?
Quote:
charge. Edit: FWIW the D297 is rated for 36 and 48v |
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02-26-2014, 01:51 PM | #14 | |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: 36 Volt to 48 Volt conversion- battery cable lengths?
Quote:
You already have a pretty decent range. I will be interesting to see how much better it gets as the batteries get broken in. |
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02-28-2014, 09:04 AM | #15 | |
Gone Wild
Join Date: Jul 2010
Location: Peachtree City, Ga.
Posts: 2,759
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Re: 36 Volt to 48 Volt conversion- battery cable lengths?
Quote:
Here is requested pic of battery bay with 8v batteries. |
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02-28-2014, 09:32 AM | #16 |
Gone Wild
Join Date: Jan 2014
Location: FL
Posts: 294
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Re: 36 Volt to 48 Volt conversion- battery cable lengths?
Thanks kernal. Are all 5 of those cables the same length? The cable between the 2 rows looks like it can use an extra inch or so, or am I just imagining that?
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02-28-2014, 09:40 AM | #17 |
Gone Wild
Join Date: Jul 2010
Location: Peachtree City, Ga.
Posts: 2,759
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Re: 36 Volt to 48 Volt conversion- battery cable lengths?
All the same. The rear drivers side battery could have been turned around. The only batteries that have to be in the position they are in is the 2 that the mains are connected to, at least on my cart.
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03-04-2014, 04:21 PM | #18 |
Gone Wild
Join Date: May 2012
Location: S. Fl
Posts: 237
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Re: 36 Volt to 48 Volt conversion- battery cable lengths?
Is it possible to fit 2 more 6v batteries under the seat? I have a 2008 PDS and it looks like it may work. My batteries are new and I didn’t plan before I bought new ones, now I would like to upgrade but the expense of the parts plus a whole set of 8v new batteries makes it hard to justify.
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03-04-2014, 04:48 PM | #19 |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: 36 Volt to 48 Volt conversion- battery cable lengths?
Seven 6V-245AH batteries fit nicely.
I believe you have to relocated the controller/solenoid to fit the eighth battery in front of the passenger side wheel-well, but that is relatively easy to do with a PDS or DCS. What is your goal for the cart speed wise? What controller and solenoid do you have? What is your tire height? You can get 28MPH on stock height tires and a stock PDS motor with a DCX400 controller and a 42V battery pack. --- My goal was range rather than speed or torque, but I ended up with all three. If the seven 245AH batteries hadn't given me the range I wanted, I was going to add an eighth battery and relocate the controller, solenoid and 12V DC-DC converter (and some other stuff) on a heatsink made out of 3/16 aluminum, mounted on the frame above the motor. |
03-04-2014, 08:30 PM | #20 |
Gone Wild
Join Date: Sep 2012
Location: Savannah, GA
Posts: 2,760
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Re: 36 Volt to 48 Volt conversion- battery cable lengths?
There is more then one way to arrange six 8v batteries in a txt tray. Depending on your existing cables you may have to change a few, most likely you will.
I believe this is the cleanest way to arrange 8v batts. |
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