lifted club cars - lifted ezgo
Home FAQDonate Who's Online
Go Back   Buggies Gone Wild Golf Cart Forum > Golf Cart Repair and Troubleshooting > Electric EZGO
Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV.



Post New Thread  Reply
Thread Tools Display Modes
Unread 09-23-2017, 09:51 PM   #1
Getting Wild
 
Join Date: Aug 2017
Posts: 109
Default Is a 300A controller upgrade worth it?

So I have an ezgo 36v cart with a 250A series controller, stock solenoid, and motor.
I'm not trying to build a super fast cart or anything, but my current setup does leave something to be desired going uphill.
My question is will I see any real gains by just dropping in a 300A series controller?


Sent from my H1611 using Tapatalk
jchal3377 is offline   Reply With Quote
Alt Today
BGW

Golf car forum Sponsored Links

__________________
This advertising will not be shown in this way to registered members.
Register your free account today and become a member on Buggies Gone Wild Golf Cart Forum
   
Unread 09-23-2017, 10:33 PM   #2
BGW Sponsor
 
scottyb's Avatar
E-Z-GO
 
Join Date: Dec 2007
Location: Southern California
Posts: 66,624
Default Re: Is a 300A controller upgrade worth it?

In a series cart, No.
Also some 300s max out at 300.
Other 300s max out at 350a.

we really need to know what cart.
what drive system.
what controller you are asking about.
scottyb is offline   Reply With Quote
Unread 09-24-2017, 12:41 AM   #3
Over This Interview Is...
 
cgtech's Avatar
Yamaha
 
Join Date: Jun 2012
Location: AZ
Posts: 11,682
Default Re: Is a 300A controller upgrade worth it?

No, a 300 is going to only be a "just barely noticeable" upgrade for acceleration from a standstill, and is not worth throwing any money at. A bigger controller than that, and a full cable upgrade would serve better. This is assuming that crummy batteries aren't holding you back right now.
cgtech is offline   Reply With Quote
Unread 09-24-2017, 05:42 AM   #4
Getting Wild
 
Join Date: Aug 2017
Posts: 109
Default Re: Is a 300A controller upgrade worth it?

It is a 2008 ez go mtp 800. It has brand new batteries charged to 38v and I have upgraded the wires to 4g. Only because I had to buy them when I put in the batteries. I have attached pictures of the controller part number, and the motor plate. I'm pretty sure it's stock stuff. I know someone selling the controller cheap, I don't have a to.of money to sink.into a full system.upgrade right now.
The cart runs fine, I was just hoping to squeeze out a little.More torque.

Sent from my H1611 using Tapatalk
jchal3377 is offline   Reply With Quote
Unread 09-24-2017, 11:49 AM   #5
Techno-Nerd
 
JohnnieB's Avatar
E-Z-GO
 
Join Date: Jun 2011
Location: West Virginia
Posts: 14,385
Default Re: Is a 300A controller upgrade worth it?

Top picture: There appears to be an air gap between the cable lug on the right side of the B+ terminal. Maybe a washer is installed between lug and B+ bus bar. The entire surface of the cable lug (ring terminal) facing the bus bar ought to be in intimate contact with the B+ bus bar (terminal).


Torque is directly proportional to amps flowing through the motor, so going from a 250A controller to a 300A controller is a 20% increase in amp flow, but the dynamic impedance (opposition to amp flow) of a motor increases as RPM increase, so the increased torque only exists at RPMs below the RPM at which 250A is the max amps the motor is capable of drawing.

In other words, a slight increase in acceleration from a standstill may be noticeable for the first few feet. Also, if the cart is slowing to walking speeds (or less) going up a hill, it might not slow quite as much. However, if the motor is not being loaded down to an RPM that it can draw more than the 250A passed by the original controller, no difference will be noticed.
JohnnieB is offline   Reply With Quote
Unread 09-24-2017, 07:22 PM   #6
Getting Wild
 
Join Date: Aug 2017
Posts: 109
Default Re: Is a 300A controller upgrade worth it?

Well I thought I was following you, but then you lost me haha. Basically my cart does slow to walking speed up hill. Will the added amp availability make it go up hill quicker.

Sent from my H1611 using Tapatalk
jchal3377 is offline   Reply With Quote
Unread 09-24-2017, 07:31 PM   #7
Getting Wild
Yamaha
 
Join Date: Sep 2017
Location: Fargo, ND
Posts: 107
Default Re: Is a 300A controller upgrade worth it?

Quote:
Originally Posted by jchal3377 View Post
Well I thought I was following you, but then you lost me haha. Basically my cart does slow to walking speed up hill. Will the added amp availability make it go up hill quicker.

Sent from my H1611 using Tapatalk


What he's saying is you'll only notice a difference if your motor is pulled down hard enough to draw 250amps.

If you can get the controller slightly used at a good price I'd say go for it. Even if you don't get a bunch more performance from it, at least you're that much closer to a full system upgrade when the time comes.


Sent from my iPhone using Tapatalk
74Beeper is offline   Reply With Quote
Unread 09-24-2017, 07:42 PM   #8
Over This Interview Is...
 
cgtech's Avatar
Yamaha
 
Join Date: Jun 2012
Location: AZ
Posts: 11,682
Default Re: Is a 300A controller upgrade worth it?

A 20% larger controller (over a 'way too small' one) doesn't really have much of a home in any "fully upgraded" system. That's why we keep telling you it's kinda a waste of money.
cgtech is offline   Reply With Quote
Unread 09-24-2017, 07:46 PM   #9
Getting Wild
 
Join Date: Aug 2017
Posts: 109
Default Re: Is a 300A controller upgrade worth it?

Well the one I'm looking at is not really that nice, but it was a quick, cheap fix option. I appreciate all of the advice on this, an am probably going to hold out for a better option.

If you were going to upgrade a system a little at a time, where would you start? Controller, motor, solenoid, or wires. Clearly the first two are big money moves.

Sent from my H1611 using Tapatalk
jchal3377 is offline   Reply With Quote
Unread 09-24-2017, 07:49 PM   #10
Getting Wild
Yamaha
 
Join Date: Sep 2017
Location: Fargo, ND
Posts: 107
Default Re: Is a 300A controller upgrade worth it?

Quote:
Originally Posted by cgtech View Post
A 20% larger controller (over a 'way too small' one) doesn't really have much of a home in any "fully upgraded" system. That's why we keep telling you it's kinda a waste of money.


I know this is Yamaha and 48v but the 300 amp controller that Plowman's Riot Kit comes with is not worth it and too small? Or is it acceptable because it's 48 volt and the motor draws less amperage at the same load?


Sent from my iPhone using Tapatalk
74Beeper is offline   Reply With Quote
Reply
Go Back   Buggies Gone Wild Golf Cart Forum > Golf Cart Repair and Troubleshooting > Electric EZGO


Thread Tools
Display Modes


Similar Threads
Thread Forum
DS stock controller model 1204-412 300A Golf Carts and Parts
Worth the upgrade? Big Block Talk!
Ezgo PDS controller 300a w/ speed chip = 19mph Golf Carts and Parts
Ezgo DCS Controller and Solenoid 36V 300A Golf Carts and Parts
Alltrax controller npx 4834 48v 300a?? Electric Club Car


All times are GMT -5. The time now is 06:41 AM.


Club Car Electric | EZGO Electric | Lifted Golf Carts | Gas EZGO | Used Golf Carts and Parts

Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO ©2011, Crawlability, Inc.