72 volt pack / 36 volt charger

getawaycarts · 01-15-2016, 08:57 AM

I want to wire up 6, 12 volt batteries in series to my alltrax 400 controller for a 72 volt battery pack. can I wire that pack in 2, 36 volt packs to my 36 volt charger? it early and I didn't get much sleep if this isn't making sense let me know and I'll try to clear it up!

scottyb · 01-15-2016, 10:26 AM

If wired 3 in series and 3 in parallel then, yes. The control and charger will only see 36v.

kgsc · 01-15-2016, 10:36 AM

Quote:

Originally Posted by getawaycarts

I want to wire up 6, 12 volt batteries in series to my alltrax 400 controller for a 72 volt battery pack. can I wire that pack in 2, 36 volt packs to my 36 volt charger? it early and I didn't get much sleep if this isn't making sense let me know and I'll try to clear it up!

The short answer is yes. 6 12s in series will give you 72 volts and you can tap 3 batteries at a time to charge with a 36 volt charger. Which Alltrax controller do you have and will it handle 72 volts ?

getawaycarts · 01-25-2016, 10:27 AM

I have the Alltrax XCT 400 PDS the control side will be wired with 36volts, but the 72 volts across the B+ & B-... that will work right?

gornoman · 01-25-2016, 01:05 PM

Quote:

Originally Posted by getawaycarts

I have the Alltrax XCT 400 PDS the control side will be wired with 36volts, but the 72 volts across the B+ & B-... that will work right?

Nope. That controller is only rated to 48vdc.

getawaycarts · 01-25-2016, 01:10 PM

yeah just figured all that out...back to the drawing board.

TahoeDawgZ71 · 01-31-2016, 05:26 PM

I'm not aware of any Sepex controller that can handle 72 volts. If you're wanting to run 72 volts you're probably going to have to convert the vehicle to a series drive system. I built a Club Car Precedent with 6 12's and ran the Alltrax SPM 72-650 controller. It was VERY impressive.

Patela2oh · 05-16-2016, 07:31 PM

Quote:

Originally Posted by TahoeDawgZ71

I'm not aware of any Sepex controller that can handle 72 volts. If you're wanting to run 72 volts you're probably going to have to convert the vehicle to a series drive system. I built a Club Car Precedent with 6 12's and ran the Alltrax SPM 72-650 controller. It was VERY impressive.

Where did you fit 6 12v's?

TahoeDawgZ71 · 05-16-2016, 10:11 PM

Quote:

Originally Posted by Patela2oh

Where did you fit 6 12v's?

4 under the seat and 2 in the bagwell. Built aluminum battery trays and welded them into the frame for support. Then I built a diamond plate cover to hide them.

anix · 06-12-2016, 10:03 AM

Hey Dawg are the 72 volt Gem cars series or sepex?

01-15-2016, 08:57 AM	#1
getawaycarts Not Yet Wild Join Date: Sep 2015 Posts: 22	72 volt pack / 36 volt charger I want to wire up 6, 12 volt batteries in series to my alltrax 400 controller for a 72 volt battery pack. can I wire that pack in 2, 36 volt packs to my 36 volt charger? it early and I didn't get much sleep if this isn't making sense let me know and I'll try to clear it up!
getawaycarts Not Yet Wild Join Date: Sep 2015 Posts: 22

01-15-2016, 10:26 AM	#2
scottyb Happy Carting Join Date: Dec 2007 Location: Southern California Posts: 73,406	Re: 72 volt pack / 36 volt charger If wired 3 in series and 3 in parallel then, yes. The control and charger will only see 36v.

01-25-2016, 10:27 AM	#4
getawaycarts Not Yet Wild Join Date: Sep 2015 Posts: 22	Re: 72 volt pack / 36 volt charger I have the Alltrax XCT 400 PDS the control side will be wired with 36volts, but the 72 volts across the B+ & B-... that will work right?
getawaycarts Not Yet Wild Join Date: Sep 2015 Posts: 22

01-25-2016, 01:10 PM	#6
getawaycarts Not Yet Wild Join Date: Sep 2015 Posts: 22	Re: 72 volt pack / 36 volt charger yeah just figured all that out...back to the drawing board.
getawaycarts Not Yet Wild Join Date: Sep 2015 Posts: 22

01-31-2016, 05:26 PM	#7
TahoeDawgZ71 revolutiongolfcars.com Join Date: Mar 2010 Location: Golf Car Capital of The World... Augusta, Georgia Posts: 10,224	Re: 72 volt pack / 36 volt charger I'm not aware of any Sepex controller that can handle 72 volts. If you're wanting to run 72 volts you're probably going to have to convert the vehicle to a series drive system. I built a Club Car Precedent with 6 12's and ran the Alltrax SPM 72-650 controller. It was VERY impressive.

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06-12-2016, 10:03 AM	#10
anix Getting Wild Join Date: May 2013 Posts: 148	Re: 72 volt pack / 36 volt charger Hey Dawg are the 72 volt Gem cars series or sepex?
anix Getting Wild Join Date: May 2013 Posts: 148

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