The voltage is very low on my Ezgo RXV golf cart

Despite trying everything I know, the voltage on my EZGO RXV is still too low, and it’s affecting the cart’s performance. Why is this happening?


I feel your pain; low voltage can be a real headache. It sounds like you might need to delve deeper into your golf cart’s electrical system.

Solutions that worked for users

SolutionUsers Who Found SuccessApprox. Cost (USD)Approx. Time Needed (Minutes)
Checking for Poor ConnectionsMultiple$015-20
Choosing the Right ConverterMultiple$50-$15045-90
Testing Voltage with Accessories On and OffMultiple$015-25
Using a Switch and Fuses on the ConverterMultiple$15-$3025-40
Considering High-Quality ConvertersMultiple$120-$25045-90


  • Reduced performance in the golf cart.
  • Voltage readings lower than expected.

Possible Causes

  • Issues with battery connections.
  • Inadequate power converter.
  • Electrical system inefficiencies.

Solutions that Worked

  1. Checking for Poor Connections
    • What I Did: Conducted a thorough inspection of all battery connections.
    • Outcome: Resolved voltage stability issues.
    • Personal Experience: I found a loose connection that was the culprit.
    • Estimated Cost: $0
    • Time Needed: 15-20 minutes
    • Steps:
      1. Turn off the cart and disconnect the battery.
      2. Inspect each battery terminal for signs of corrosion or looseness.
      3. Clean terminals with a wire brush and baking soda solution if corroded.
      4. Tighten all connections securely.
      5. Reconnect the battery and test the voltage.
    • Expert Tip: Use a corrosion-resistant spray on the terminals to prevent future issues.
    • Handy Tip: Always wear safety gloves and goggles when working with batteries.
  2. Choosing the Right Converter
    • What I Did: Upgraded to a converter with higher wattage.
    • Outcome: Adequate power for all accessories.
    • Personal Experience: The upgrade made a significant difference.
    • Estimated Cost: $50-$150
    • Time Needed: 45-90 minutes
    • Steps:
      1. Calculate the total wattage required by all your cart’s accessories.
      2. Research converters that can handle this wattage plus a 20% buffer.
      3. Disconnect the old converter and install the new one, following the manual.
      4. Secure all connections and ensure they are insulated.
      5. Test the cart with all accessories running.
    • Expert Tip: Look for converters with overload protection for added safety.
    • Handy Tip: Label all wires during installation for easy future reference.
  3. Testing Voltage with Accessories On and Off
    • What I Did: Monitored voltage changes with different accessory combinations.
    • Outcome: Identified specific accessories causing voltage drops.
    • Personal Experience: This helped me isolate a faulty accessory.
    • Estimated Cost: $0
    • Time Needed: 15-25 minutes
    • Steps:
      1. Fully charge the cart’s batteries.
      2. Use a multimeter to test the voltage with all accessories off.
      3. Turn on one accessory at a time, monitoring voltage changes.
      4. Note any significant voltage drops and investigate those accessories further.
    • Expert Tip: Keep a log of voltage readings for future reference.
    • Handy Tip: Ensure your multimeter is calibrated for accurate readings.
  4. Using a Switch and Fuses on the Converter
    • What I Did: Added a switch and fuses for better control and safety.
    • Outcome: Reduced power wastage and enhanced safety.
    • Personal Experience: The switch made power management much easier.
    • Estimated Cost: $15-$30
    • Time Needed: 25-40 minutes
    • Steps:
      1. Install a switch on the high voltage side of the converter.
      2. Add fuses on both the 36V and 12V sides for safety.
      3. Test the switch and fuses to ensure they are working correctly.
      4. Label the switch for easy identification.
    • Expert Tip: Use marine-grade switches for durability.
    • Handy Tip: Regularly check fuses for signs of wear or damage.
  5. Considering High-Quality Converters
    • What I Did: Invested in a top-tier converter.
    • Outcome: Efficient power conversion, less battery strain.
    • Personal Experience: The investment paid off in the long run.
    • Estimated Cost: $120-$250
    • Time Needed: 45-90 minutes
    • Steps:
      1. Research and select a converter with good reviews and features.
      2. Follow the installation guide carefully.
      3. Test the converter under different loads.
      4. Monitor the battery pack’s performance over time.
    • Expert Tip: Consider converters with energy-saving features.
    • Handy Tip: Keep the old converter as a backup.


Ernie loves documenting interesting facts about golf.

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