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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV. |
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01-28-2023, 10:44 AM | #1 |
Not Yet Wild
Join Date: Jun 2021
Posts: 6
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Ezgo upgrade problem 48v
Was wondering if someone could point me in the rite direction. I have a ezgo 36v txt. I just did the conversion that consisted of alltrax 500,admiral b4,and 4 12v lithium batteries. I have 4 green blinking lights when full throttle amber flashing. Not showing any error codes. But when full throttle the motor is only showing 27v on the A1 leg at full throttle. On the computer it says motor showing 25v at full throttle. If i turn the fn dial seems like it does nothing but when it’s all the way up it shuts everything down. Any suggestions where to start. Thanks
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01-28-2023, 11:02 AM | #2 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,358
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Re: Ezgo upgrade problem 48v
If i turn the fn dial seems like it does nothing but when it’s all the way up it shuts everything down.
Obviously the FN1 is limiting the motor access to the batteries as it should. The battery shuts down when the draw exceeds it's limit to release amperage. Revisit the battery spec. What is the maximum amperage draw (MAD) ? |
01-28-2023, 11:11 AM | #3 |
Gone Wild
Join Date: May 2012
Location: Rio Verde, Az
Posts: 7,125
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Re: Ezgo upgrade problem 48v
What are the specs on your batteries??? You are likely exceeding their current draw specs and getting battery shutdown. Are you using the Alltrax app on your laptop?
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01-28-2023, 11:51 AM | #4 |
Not Yet Wild
Join Date: Jun 2021
Posts: 6
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Re: Ezgo upgrade problem 48v
Product Number : •EB-LIFP- 12100AH
Nominal Capacity: 100AH. TYPE: LiFePO4 Battery Norminal Voltage : 12.8V Charging Voltage: 14.4V (14.6V Max) Charge Method: CC / CV 'Standard Charge Current: 20A • Standard Discharge Current: 20A Max Continuse Discharge Current: 100A Operating Temperature: Charge: 0°C to 50°C Cycle Life: > 2000cycles at 100% Depth of Discharge(DoD), Up to, 5000 cycles at 80% DoD Store at 2 50% Capacity, Recharge Every 3 Months |
01-28-2023, 11:56 AM | #5 |
Not Yet Wild
Join Date: Jun 2021
Posts: 6
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Re: Ezgo upgrade problem 48v
Yes I’m using alltrax on the computer
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01-28-2023, 12:25 PM | #6 |
Gone Wild
Join Date: May 2012
Location: Rio Verde, Az
Posts: 7,125
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Re: Ezgo upgrade problem 48v
You will have to set your max battery current to 100 amps (very low) to keep the battery from shutting down. Try 100 and if it still trips under max acceleration, try 90 Amps.
I hope you have separate chargers for each battery! |
01-28-2023, 12:39 PM | #7 |
Not Yet Wild
Join Date: Jun 2021
Posts: 6
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Re: Ezgo upgrade problem 48v
Nope didn’t do anything and why would I need to charge them individually all link together for 48v they charged fine.
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01-28-2023, 01:35 PM | #8 |
Gone Wild
Join Date: May 2012
Location: Rio Verde, Az
Posts: 7,125
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Re: Ezgo upgrade problem 48v
They will eventually go out of balance! Read the threads in here about why we don't like 12V lithium batteries in series.
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01-28-2023, 01:43 PM | #9 |
Not Yet Wild
Join Date: Jun 2021
Posts: 6
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Re: Ezgo upgrade problem 48v
Ok so in the mean time is there anything to correct my problem of the flashing yellow current limit at full
Throttle. |
02-04-2023, 07:24 AM | #10 |
Not Yet Wild
Join Date: Jun 2021
Posts: 6
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Re: Ezgo upgrade problem 48v
Stupid me after finally putting hours and hours of testing it was the speed sensor plug and fn plug that were mixed up. Got the cart running but batteries spike to 65v and shut the cart down. Going to try to mess with settings to see if I can find a happy spot. Untill then looks like I’ll be researching what new batteries to get. Any suggestions
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