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Old 02-26-2024, 10:31 PM   #1
dlandoll
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Default Alltrax 36v to 48v - 1989 CC

Three years ago I upgraded to an Alltrax controller kit from Scottyb. Its been great! 1989 ClubCar 36v, original motor.
Now my batteries need replaced and want to switch from 36v to 48v, get some more speed. I don't know what I need to do to make this work. I have looked through the forum but don't see a clear answer. I can't find what model I bought, emails are lost. I'll be able to get to the cart this weekend. But thought I'd reach out to this group for links to other posts or any advice.

Anyone got some advice on what I need to do to make the switch with the controller and or other things that need added?
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Old 02-27-2024, 06:04 AM   #2
Capt. Lenny
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Default Re: Alltrax 36v to 48v - 1989 CC

Should be able to look in your tool kit (in the computer program) and see what model you have and then change the voltage setting to 48 volts. Next you'll need to get a 48 volt solenoid and resistor. You'll also need to get a 48 volt battery charger. If you haven't upgraded your battery cables, now would be a good time to do it.
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Old 02-27-2024, 10:52 AM   #3
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Default Re: Alltrax 36v to 48v - 1989 CC

All of our C series conversion kits are available in 36/48 dual voltage. Check your solenoid voltage rating for the 36/48v designation.
If 36v you will need a 48v solenoid. You will need a 470 ohm pre charge resistor. The controller will not any program changes.
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Old 03-09-2024, 06:08 PM   #4
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Default Re: Alltrax 36v to 48v - 1989 CC

ScottyB -
Got down to the lake today to look things over. I plugged into the controller, everything looks ready to go, shows 48v currently on the left side of the program.

I have the SW180 solenoid, and the sticker says 36v. I have both a black diode and a green resistor installed. Pic attached. Couldn't get the camera to focus on the text, but is does NOT say 36/48 on it.

Can you recommend what I need to buy, is it just the sw180 36/48 and reuse the existing resistor and diode?

Thanks for the help! Your product has been great over the years.
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Old 03-12-2024, 08:29 AM   #5
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Default Re: Alltrax 36v to 48v - 1989 CC

Quote:
Originally Posted by dlandoll View Post
ScottyB -
Got down to the lake today to look things over. I plugged into the controller, everything looks ready to go, shows 48v currently on the left side of the program.

I have the SW180 solenoid, and the sticker says 36v. I have both a black diode and a green resistor installed. Pic attached. Couldn't get the camera to focus on the text, but is does NOT say 36/48 on it.

Can you recommend what I need to buy, is it just the sw180 36/48 and reuse the existing resistor and diode?

Thanks for the help! Your product has been great over the years.
Use the 48v SW180 solenoid and bigger 470 Ω resistor.
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Old 03-12-2024, 08:44 AM   #6
dlandoll
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Default Re: Alltrax 36v to 48v - 1989 CC

Quote:
Originally Posted by scottyb View Post
Use the 48v SW180 solenoid and bigger 470 Ω resistor.
Just ordered it! Thanks sir!
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Old 03-12-2024, 10:04 AM   #7
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Default Re: Alltrax 36v to 48v - 1989 CC

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Originally Posted by dlandoll View Post
Just ordered it! Thanks sir!
And thank you too
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Old 03-16-2024, 02:38 PM   #8
dlandoll
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Default Re: Alltrax 36v to 48v - 1989 CC

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Originally Posted by scottyb View Post
And thank you too
I got everything in place today. Hooked everything back up the way it was. Installed new 8v batteries, new solenoid and resistor/precharge thing. I am hearing the click of the solenoid, but the cart does not move.

I get this, Precharge Failure and Low Battery. Voltage across the pack is 49v right now. Any suggestions on how to get this running?
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Old 03-16-2024, 04:02 PM   #9
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Default Re: Alltrax 36v to 48v - 1989 CC

Check the battery pack voltage when you are trying to go.
Recharge failure is a catch all code for solenoid did not close.
There are several possible causes.
Ensure the diode and and precharge resistor are (properly) in place.
Check for 48v measured between the 2 small solenoid terminals when you are trying to go.
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Old 03-16-2024, 10:32 PM   #10
dlandoll
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Default Re: Alltrax 36v to 48v - 1989 CC

Quote:
Originally Posted by scottyb View Post
Check the battery pack voltage when you are trying to go.
Recharge failure is a catch all code for solenoid did not close.
There are several possible causes.
Ensure the diode and and precharge resistor are (properly) in place.
Check for 48v measured between the 2 small solenoid terminals when you are trying to go.
A bit more info. I had the small diode installed backwards (didn't know it was a one way thing) the first time I tried it. Blew the pedal fuse, replaced it with a 5amp. It's all I had. Tried it again, popped that one too. Then I realized the resistor was backwards. Did I fry the controller?

Software sees the pedal working through all ranges.
Top lugs of the solenoid are seeing 49.6v, both sides when tested to (-) side of the battery pack. I'll test the small connections Monday.

I'm frustrated. Just put a grand into it, and hoped for a plug and play. But afraid I screwed it up with a simple diode backwards. Scotty, really appreciate the help here.
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