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Unread 03-16-2011, 04:55 AM   #1
Gone Wild
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Default 90 club car 36v slow uphill

Just bought a 90 club car. Seems a bit sluggish going up hills. What would be the order of troubleshooting? When checking voltages on individual batteries, do I need to disconnect it from the others?

Just checking each one after a good overnight charge I get 6.5V on every one and 39 across the pack.

It has lots of cool customization but motor control is stock wiper type.

Very interested in just replacing all of the drive. I would like this baby to have a little pep. any advice on this? Are there Kits or does one piece it all together?

Thanks, Been doing a ton of reading and will do more.
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Unread 03-16-2011, 10:50 AM   #2
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Default Re: 90 club car 36v slow uphill

Welcome to BGW Beau.
The voltage you posted is not completely settled. It does take 12 + hours for the batteries to settle and then you see how much of the charge they are able to retain.
You said you have the Speed wiper (V-glide) but is the cart a resistor coil or controller cart? Solid state speed controllers started in '90 or '91 as an option ... which system do you have.
I do have a packages to upgrade existing or convert resistor carts.
Save this chart below for reference.
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File Type: jpg Batterytable1-1.jpg (88.7 KB, 25 views)
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Unread 03-16-2011, 11:40 AM   #3
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Default Re: 90 club car 36v slow uphill

how does one tell the difference? I would guess that it's resistor as there are multiple large cables running down to the frame.
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Unread 03-16-2011, 11:59 AM   #4
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Default Re: 90 club car 36v slow uphill

The resistor coils look like bed springs and are mounted behind the batteries under a heat shield. The lack of resistor coils indicates a controller cart.
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Unread 03-16-2011, 12:13 PM   #5
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Default Re: 90 club car 36v slow uphill

Yep, she's a resistor. What are my options to pep it up? Can I upgrade to a 48v pack to juice it up?
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Unread 03-16-2011, 04:23 PM   #6
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Default Re: 90 club car 36v slow uphill

I am already noticing an increase in performance as I cycle the batteries. I wasn't aware of the needs of a battery pack like this until I read some of the stickies and posts here. What a nice group! Many of the forums I visit have so much background noise!

So my immediate thought of replacing everything is rapidly being replaced with a more incremental approach.

I read a post that said you can upgrade to 48v with a few changes. Would this be a good first step? My charger makes a mad buzz so I'll be replacing it soon. If 48v is simply batteries, a solenoid and cables. then perhaps, I should do this upgrade before buying a new charger.

Is this correct, or could anyone point me in the right direction for a tutorial.

Thanks,

b
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Unread 03-16-2011, 05:04 PM   #7
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Default Re: 90 club car 36v slow uphill

SCOTTYB is the expert on conversions like yours. I think he has a kit of needed parts he makes up depending on your wants, needs, and funds avaialble?
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Unread 03-16-2011, 11:03 PM   #8
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Default Re: 90 club car 36v slow uphill

Beau and I talked on the phone a little this afternoon. We got a weeks worth of posting done Beau has alot of info to digest as he tries to decide just how upgraded he wants to be Good luck with the project.
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Unread 03-17-2011, 02:11 PM   #9
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Default Re: 90 club car 36v slow uphill

one thing he has to keep in mind is no matter what is done the cart is going to lose some going uphill its just the nature of the beast..................
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Unread 06-01-2011, 06:19 PM   #10
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Default Re: 90 club car 36v slow uphill

Cart Update:

I have been using this cart regularly for a couple of months now. Speed and power gradually increased as batteries were cycled. Replaced charger with refurbished or B stock Protech which increased the performance of the cart signifigantly. At this point, I think the cart is performing up to stock specs, 12-15mph.

This cart is driven by my 11 yr old son, so for the summer the performance of the cart is about right for him. I'll be looking to go solid state as a winter project. Thanks for the help and advice here on the forum.

Thanks ScottyB, I will be ordering a full kit from you soon. The advice you have freely given to me and others has helped me solidify a long term plan for the club car.
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