|
Electric Club Car Electric DS, and Precedent golf cars |
|
Thread Tools | Display Modes |
07-10-2021, 10:45 AM | #1 |
Gone Wild
Join Date: Oct 2011
Location: Raleigh, NC
Posts: 243
|
Precedent with Alltrax - Suddenly Slow
I have a 2014 Precedent with an Alltrax XCT400 on it that I'm helping a friend work on. The cart used to run pretty quick but suddenly it's very slow, occasionally it barely makes it home. My friend claims he can turn the key off then back on and it'll run again but still slowly. Here's what I've checked so far but nothing is standing out...
- hooked it up to the Alltrax Toolkit and I get no errors in the monitor - replaced the speed sensor with a spare here and no change - Load tested the batteries, all check out - checked total pack voltage and it looks good - MCOR doesn't seem to be the issue Attached are Alltrax screenshots. It has a high speed motor on it too. What am I missing? |
Today | |
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 |
|
07-10-2021, 02:58 PM | #2 |
Bonafide Nincompoop
Join Date: Dec 2015
Location: Charlottesburg Va
Posts: 8,987
|
Re: Precedent with Alltrax - Suddenly Slow
Pack voltage shows 49.9V on the third screen shot.
What's the actual pack voltage? Did you test the voltage of the pack while the cart is in operation? If not, you need to check that, and check the voltage of each battery individually. |
07-10-2021, 03:41 PM | #3 |
Gone Wild
Join Date: Dec 2009
Location: Aiken, SC
Posts: 13,003
|
Re: Precedent with Alltrax - Suddenly Slow
Should the RPM monitor be blank?
|
07-10-2021, 07:19 PM | #4 |
Gone Wild
Join Date: Oct 2011
Location: Raleigh, NC
Posts: 243
|
Re: Precedent with Alltrax - Suddenly Slow
Wouldn’t a load test accomplish the same thing?
|
07-11-2021, 10:41 AM | #5 |
Gone Wild
Join Date: Oct 2011
Location: Raleigh, NC
Posts: 243
|
Re: Precedent with Alltrax - Suddenly Slow
All of the batteries tested at 8.5V
|
07-11-2021, 11:32 AM | #6 |
Bonafide Nincompoop
Join Date: Dec 2015
Location: Charlottesburg Va
Posts: 8,987
|
Re: Precedent with Alltrax - Suddenly Slow
A load tester doesn’t always reveal a bad battery. Typically a load tester runs for 3-5 seconds, while read the cart applies nearly the same load on the battery for the entire time it’s operating. The best load tester for a golf cart battery is the cart itself. Checking voltage on each battery while the cart is in operation is the best way to determine if one or more batteries are not holding up.
Make sure it’s fully charged, run the cart until it gets slow, then start checking battery voltage of each battery while the cart is driving. Check the cables for loose or bad connections. See if any are hot. A hot cable is one that has a bad connection and needs to be cleaned/tightened or replaced. Check to see if the solenoid is hot. If it’s hot the connections may not be tight, cables incorrectly placed on the posts, or the contacts inside may be damaged. Is the motor hot after a run? Internal damage in the motor would be the last thing to check. But it usually requires the motor be removed and taken apart. |
07-11-2021, 12:01 PM | #7 |
Gone Wild
Join Date: Oct 2011
Location: Raleigh, NC
Posts: 243
|
Re: Precedent with Alltrax - Suddenly Slow
I’ll check all of that. It’s like the cart is in limp mode or something.
|
07-11-2021, 03:09 PM | #8 |
Gone Wild
Join Date: Sep 2014
Location: Orlando, FL
Posts: 1,308
|
Re: Precedent with Alltrax - Suddenly Slow
You didn't mention how old the batteries were. But, I had a member's cart in which all batteries read 8.46-8.48V. The cart could go no more than 400yds. Tested batteries with a hydrometer and not one cell would even lift the float. The hydrometer is the true test for batteries. The batteries had voltage but could produce no power. Upgraded cart with lithium pack.
|
07-11-2021, 03:13 PM | #9 |
Gone Wild
Join Date: Oct 2011
Location: Raleigh, NC
Posts: 243
|
Re: Precedent with Alltrax - Suddenly Slow
They are US Batteries from 2019.
I have some extra batteries here so I’m going to throw them in and see what happens. I’m traveling until late week so I’ll report back on if that helps. |
|
Thread Tools | |
Display Modes | |
|
Similar Threads | ||||
Thread | Forum | |||
alltrax regen switch suddenly became hard to turn | Electric EZGO | |||
2001 txt suddenly slow | Electric EZGO | |||
1999 DS -- Suddenly Slow | Electric Club Car | |||
2000 Club DS - Suddenly slow | Electric Club Car | |||
86 Club Car suddenly started running Slow | Electric Club Car |