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Unread 05-18-2016, 10:11 AM   #1
Not Yet Wild
 
Join Date: May 2016
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Default 36V Club Car DS Slow on Hills

Hey guys --

I bought a 36V Club Car DS V-glide for cheap, and I'm having trouble on hills in the neighborhood.

The hills around my house aren't any different in grade from what you would see on a golf course, so I would expect that the cart should not be having the trouble it's having.

Some background. When I first got the cart, I had electrical issues, which I fixed by changing the solenoid and the wiper on the V glide (the problem was with the wiper, but I didn't know it at the time, so I changed the solenoid too). When I got the cart running, it was fine on flat ground (at least 12 mph), but it would die on hills. So I changed the gear ratio. I went from the stock gear to 15:1 gears.

Now the cart makes it up the hills with a full load (4 people), but it slows down to about walking speed (and we look silly). Even though the cart is 36V, I think it should be moving faster on hills (maybe 2x walking speed?).

I need some help with where to look next. Could the problem be in:

- resistor coils? (not sure how to check this)
- Cables -- connections all seem tight...
- F/R switch (seems to be working fine)
- motor (it's 15 years old -- maybe the brushes need to be replaced)?
- batteries? - voltage and specific gravity seems fine. These batteries are 2012 vintage -- I don't want to replace them unless I have to because they're so expensive :)

Or is it just unreasonable to expect this cart to go faster than walking speed on the hills?

Anyone got any advice? Any troubleshooting tips?
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Unread 05-18-2016, 10:48 AM   #2
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Yamaha
 
Join Date: May 2012
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Default Re: 36V Club Car DS Slow on Hills

Check your battery voltage under load. I bet they are sagging a lot. They are near or at end of life if they are 2012 vintage.
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Unread 05-18-2016, 12:52 PM   #3
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Default Re: 36V Club Car DS Slow on Hills

What should be the voltage under load?
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Unread 05-18-2016, 01:02 PM   #4
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Default Re: 36V Club Car DS Slow on Hills

I don't like to see a pack drop more than the value of one battery under load. So that number for a 36v pack is 30v... considering a full charge is 38.3-4 that is a significant drop large enough to indicate a battery problem. Also the at rest reading is important taken 12-24 hours after the pack has fully charged and settled 12 hours min. This starting point represents the general capacity of the pack as in 90% or ? see chart
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Unread 05-18-2016, 08:12 PM   #5
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Default Re: 36V Club Car DS Slow on Hills

Here is what I have.

Do you think this is enough droop to slow it down so much? It's not a full charge, but probably close.

No Load Loaded
Total 37.59V 29.8V
Batt 1 6.3V 4.9 V
Batt 2 6.3 V 5.1 V
Batt 3 6,3 V 4.8 V
Batt 4 6.3 V 5.3 V
Batt 5 6.2 V 5.0 V
Batt 6 6.2 V 5.1 V
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Unread 05-18-2016, 08:28 PM   #6
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Default Re: 36V Club Car DS Slow on Hills

And what do you think about the Epsom salt refurbishment thing (cheap guy :))
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Unread 05-20-2016, 12:13 AM   #7
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Location: Buckeye, Az
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Smile Re: 36V Club Car DS Slow on Hills

It's really messy...no matter how you try to do it...be sure to neutralize any acid you take out with baking soda and try to be safe!
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Unread 05-20-2016, 12:44 AM   #8
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Default Re: 36V Club Car DS Slow on Hills

You really need to know the accurate speed before you try to fix it. Use a GPS to get the real speed on level ground and on hills. Even our new carts seem real slow on hills but they are going at normal speed of around 7 MPH.
Harry
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Unread 05-20-2016, 09:32 AM   #9
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Default Re: 36V Club Car DS Slow on Hills

Quote:
Originally Posted by hansenbr View Post
Here is what I have.

Do you think this is enough droop to slow it down so much? It's not a full charge, but probably close.

No Load Loaded
Total 37.59V 29.8V
Batt 1 6.3V 4.9 V
Batt 2 6.3 V 5.1 V
Batt 3 6,3 V 4.8 V
Batt 4 6.3 V 5.3 V
Batt 5 6.2 V 5.0 V
Batt 6 6.2 V 5.1 V
The drop is great enough to indicate battery condition is poor. Battery salt treatment is not a permanent fix. You may get some temporary improvement but you will still need new batts.
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Unread 05-20-2016, 10:07 AM   #10
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Default Re: 36V Club Car DS Slow on Hills

Don't waste your time on snake oil battery treatment. Treat yourself to a new set.
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