How Many Amps Does a Golf Cart Charger Draw?

Golf carts have become a common mode of transportation not only on golf courses but also in various other settings such as resorts, gated communities, and even for personal use. Like any other electric vehicle, golf carts require charging to keep them running. Understanding how many amps a golf cart charger draws is essential for proper maintenance and efficient operation. In this blog post, we will delve into the factors that influence the amp draw of a golf cart charger and provide you with valuable insights.

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I. Golf Cart Charger Basics

Before we dive into the specifics of amp draw, let’s start with some fundamental information about golf cart chargers.

  1. Types of Golf Cart Chargers
    • Onboard Chargers: These are built into the golf cart and are the most common type.
    • Portable Chargers: These can be carried separately and connected to the cart when needed.
  2. Charger Voltage
    • Golf cart chargers typically operate at 36 volts, 48 volts, or 72 volts, depending on the cart’s voltage system.

II. Factors Influencing Amp Draw

The amp draw of a golf cart charger depends on several factors:

  1. Battery Capacity
    • The amp draw will be higher for golf carts with larger battery banks. More batteries require more current to charge efficiently.
  2. Charger Rating
    • The charger’s amperage rating is a crucial factor. Common charger ratings range from 5 to 25 amps, with higher-rated chargers providing faster charging.
  3. Battery State of Charge (SOC)
    • A severely depleted battery will draw more amps initially during the charging process. As the battery’s SOC increases, the amp draw decreases.

III. Calculating Amp Draw

To calculate the amp draw of your golf cart charger, you can use the following formula:

Amps = Battery Capacity (Ah) / Charger Time (Hours)


  • Amps: Amp draw of the charger.
  • Battery Capacity (Ah): The total ampere-hour capacity of your golf cart batteries.
  • Charger Time (Hours): The time it takes to charge your batteries fully.

IV. Charging Time and Efficiency

  1. Charging Time
    • The time it takes to charge a golf cart battery depends on the charger’s amperage rating and the battery’s state of charge. Higher amp chargers will charge faster but may generate more heat.
  2. Efficiency
    • Charger efficiency plays a role in amp draw. More efficient chargers convert more of the electrical energy into charging the batteries and waste less as heat.

V. Safety Considerations

  1. Overcharging
    • Overcharging can damage golf cart batteries and reduce their lifespan. It’s crucial to choose a charger with the right amperage rating for your battery bank.
  2. Heat Generation
    • Chargers can generate heat during the charging process, especially high-amp chargers. Proper ventilation is essential to dissipate this heat.

VI. Selecting the Right Charger

Choosing the appropriate charger for your golf cart is essential to ensure efficient charging without causing damage to the batteries. Here are some tips for selecting the right charger:

  1. Consult the Manufacturer’s Recommendations
    • Check the manufacturer’s specifications for your golf cart. They often recommend a charger with a specific amperage rating suitable for your battery bank.
  2. Consider Charging Time
    • If you want a faster charge, opt for a higher-amp charger. However, ensure it aligns with the manufacturer’s guidelines to avoid overcharging.
  3. Charger Efficiency
    • Look for chargers that are known for their efficiency. Efficient chargers waste less energy as heat and are gentler on your batteries.
  4. Compatibility
    • Ensure that the charger you choose is compatible with your golf cart’s voltage system (36V, 48V, or 72V).

VII. Maintaining Your Golf Cart Charger

Proper maintenance of your golf cart charger can prolong its lifespan and keep it operating at peak efficiency.

  1. Keep it Clean
    • Dust and debris can accumulate on the charger’s vents and cooling components, reducing its ability to dissipate heat. Regularly clean the charger to prevent overheating.
  2. Inspect Cables and Connections
    • Check the cables and connectors for any signs of wear, corrosion, or damage. Replace any damaged parts promptly to ensure a secure connection.
  3. Store Properly
    • If you have a portable charger, store it in a cool, dry place when not in use. Avoid extreme temperatures that could affect its performance.
  4. Monitor Charging
    • While most modern chargers have safety features to prevent overcharging, it’s still a good practice to monitor the charging process and unplug the charger when the batteries are fully charged.

Golf Cart Charger Amps for Various Models

Golf Cart ModelCharger TypeCharger AmpsVoltageCharging Time (Hours)
Yamaha G29Onboard15 Amps48V4-6
Club Car DSPortable20 Amps48V3-5
EZ-GO RXVOnboard13 Amps48V5-7
Taylor-Dunn B2Portable25 Amps36V4-6
Columbia ParCarOnboard17 Amps48V5-8

Common Charger Amp Ratings

Charger AmpsApplication
10 AmpsLow-capacity home chargers
15 AmpsEntry-level golf cart chargers
20 AmpsStandard charger for most golf carts
25 AmpsHigh-capacity chargers for quick charging
30 AmpsFast chargers for commercial use

Factors Affecting Charger Amps

FactorImpact on Charger Amps
Battery CapacityHigher capacity requires more amps
Charger EfficiencyEfficient chargers draw fewer amps
Battery VoltageVoltage affects amp requirements
Charger TypeOnboard vs. portable chargers
Charging TimeShorter times may require more amps

Typical Charging Times

Charger AmpsBattery Capacity (AH)Charging Time (Hours)
15 Amps150 AH10
20 Amps200 AH8
25 Amps250 AH6
15 Amps300 AH8
20 Amps400 AH10

Charger Safety Precautions

Safety MeasureImportance
Use the Correct ChargerMatch charger specs with your cart
Check Battery ConditionEnsure batteries are in good condition
VentilationCharge in well-ventilated areas
Avoid OverchargingDisconnect charger when fully charged
Regular MaintenanceClean and inspect charger regularly

VIII. Conclusion

In conclusion, understanding how many amps a golf cart charger draws and the factors that influence its amp draw is essential for maintaining your golf cart’s batteries and ensuring reliable performance. Choosing the right charger, considering factors like battery capacity and charger rating, and practicing good charger maintenance will help you maximize the lifespan of your golf cart’s batteries and enjoy trouble-free rides on the course or around your community.

Remember that safety should always be a priority when dealing with electric vehicles and their charging systems. Following manufacturer recommendations and regularly inspecting your charger and batteries will contribute to safe and enjoyable golf cart experiences.

How Many Amps Does a Golf Cart Charger Draw?


  • Ryan Spino

    Ryan Spino, our Executive Editor since January 2022, has been instrumental in shaping The Golf Mine. His vision, backed by a Golf Management MBA and extensive editorial expertise, has expanded our coverage, ensuring that every article upholds our commitment to quality and accuracy in the golfing realm.

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