EZGO txt 2010 - Changed charging port from 36v to 48v

EZPZtxt · 02-03-2021, 01:46 PM

Ok, so... we changed the batteries in this cart from 36 to 48v. Hooked everything up and went for a ride...no issues. Then the charging port was changed and the batteries were charged on a smart charger. The issue here is the charging port cables were connected backwards (+ and -). The batteries were charged, which is odd since the wires were reverse polarity. Now the solenoid clicks when the pedal is pressed but the cart won't move...beeper also works. Could we have fried the controller? Any thoughts?

EZPZtxt · 02-03-2021, 01:50 PM

... this 48v charging port has 2 black wires, one with a resistor (I think) and one without. Maybe I just wired it incorrect. Anyone have a link to a wiring diagram. TIA

JohnnieB · 02-03-2021, 04:03 PM

No wiring diagram handy, but it is pretty straightforward.
Red is B+
Black is B-
Blue is controller disable (Electronic version of Reed switch)
Gray cable contains two wires that connect to temperature sensor at the far end, which can be attached on any of the battery terminals since it is not connected to battery electrically.

EZPZtxt · 02-03-2021, 04:11 PM

Ok, thanks.

So if the black and red were hooked up backwards, and a charger was plugged in, could it destroy the controller?

JohnnieB · 02-03-2021, 06:19 PM

I suspect it depends on which make/model controller was installed. Some of them probably tolerate reverse polarity voltage better than others.

To start with, most chargers have a fuse or circuit beaker and the amp flow with the charger being reversed would have been huge, so the fuse probably blew. On the other hand, you said it was a smart charger, so it might have been smart enough to shut down on reversed polarity, or if it was really smart, it might have reversed its polarity also and proceeded to charge the batteries.

The starting point is measuring the battery pack voltage, it may just be too low to fire up the controller.

If it is above 48V, plug in the charger and continue monitoring the pack voltage. It should start increasing if the charger is charging the battery pack.

What Make/Model charger?
What make/Model controller?

02-03-2021, 01:46 PM	#1
EZPZtxt Not Yet Wild Join Date: Apr 2020 Location: San Antonio Posts: 14	EZGO txt 2010 - Changed charging port from 36v to 48v Ok, so... we changed the batteries in this cart from 36 to 48v. Hooked everything up and went for a ride...no issues. Then the charging port was changed and the batteries were charged on a smart charger. The issue here is the charging port cables were connected backwards (+ and -). The batteries were charged, which is odd since the wires were reverse polarity. Now the solenoid clicks when the pedal is pressed but the cart won't move...beeper also works. Could we have fried the controller? Any thoughts?

02-03-2021, 01:50 PM	#2
EZPZtxt Not Yet Wild Join Date: Apr 2020 Location: San Antonio Posts: 14	Re: EZGO txt 2010 - Changed charging port from 36v to 48v ... this 48v charging port has 2 black wires, one with a resistor (I think) and one without. Maybe I just wired it incorrect. Anyone have a link to a wiring diagram. TIA

02-03-2021, 04:11 PM	#4
EZPZtxt Not Yet Wild Join Date: Apr 2020 Location: San Antonio Posts: 14	Re: EZGO txt 2010 - Changed charging port from 36v to 48v Ok, thanks. So if the black and red were hooked up backwards, and a charger was plugged in, could it destroy the controller?

02-03-2021, 06:19 PM	#5
JohnnieB Techno-Nerd Join Date: Jun 2011 Location: West Virginia Posts: 19,654	Re: EZGO txt 2010 - Changed charging port from 36v to 48v I suspect it depends on which make/model controller was installed. Some of them probably tolerate reverse polarity voltage better than others. To start with, most chargers have a fuse or circuit beaker and the amp flow with the charger being reversed would have been huge, so the fuse probably blew. On the other hand, you said it was a smart charger, so it might have been smart enough to shut down on reversed polarity, or if it was really smart, it might have reversed its polarity also and proceeded to charge the batteries. The starting point is measuring the battery pack voltage, it may just be too low to fire up the controller. If it is above 48V, plug in the charger and continue monitoring the pack voltage. It should start increasing if the charger is charging the battery pack. What Make/Model charger? What make/Model controller?

Similar Threads
Thread	Forum
EZGO 48v charging port, triangle shaped one	Electric EZGO
2008 EzGo RXV 48v charging port problem	Electric EZGO
2010 EZGO RXV charging wires	Electric EZGO
2010 EZGO RXV Charging Issues	Electric EZGO
Changed to 48v from 36v/charging problem	Electric Club Car

Today
BGW	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