Cart Runs Slow

[kuntekente]

Hey guys I have been searching for some answers regarding my 2009 EZ-Go. I just purchased all new batteries thinking I had some issue with my cart and unfortunately it did not work. 48v system and it won't get above 11mph on flat ground. First off what should it do? Second what is a good process to figure it out?

Thanks

[radioman]

You did not supply much information to help troubleshoot. Before I would have replaced the batteries I would at least checked the voltage.

[kuntekente]

radioman sorry about that. I tested the batteries and had mixed results. Two good and two bad. That said I would like to know what it should do in terms of speed. I think mid teens according to what I have heard and read. Not sure where to start.

[radioman]

Have you checked the battery bank voltage while running since replacing them? The more information you provide helps you get help by more qualified people than myself.

[dmi518]

Which model is it? I am assuming rxv since it seems you have 4 batts. Need that info to give you some suggestions.

[kuntekente]

radioman: I have not checked voltage when under load. I will do that when I get home tonight. (I assume I can do that with a normal voltmeter)

dmi518: The cart is a 2009 EZ-Go RXV Freedom 48v (According to my paperwork)

[cashfive]

Sounds like mine, The problem I have is the setpoint of the controller. My cart came from a golf course and they set the setpoint around 11 to 12 MPH.

[kuntekente]

How do I change the Setpoint? The company I bought the cart from tried to reprogram the controller and said it is maxed out.

[kuntekente]

So I can't find my digital voltmeter and my analog one is reading all over as i move. its reads 12v still on a single battery. When I read the positive lead and negative on different batteries going to the controller it reads nothing so that must be wrong. I will get a new voltmeter today and report back.

I wonder if it has the 'chip' (the wire jumper) causing it to run slow. How can I tell? Is that a likely candidate?

[cgtech]

No jumper, sorry, not that simple. It should be able to hit 14.5 mph if it is truly maxed out in "golf mode". If it doesnt have "freedom mode enabled", it cant be set to 19 mph. This can be done by any dealer if they know how, most dont on the danaher controller. This is not something that can done by the end user/owner, it has to be done by a dealer using a danaher specific handheld programmer (no other way is available i know of). The handheld can set 14.5 mph, it can also unlock freedom mode, but i have been sworn to secrecy on the code.