When a golf cart won’t charge, the most common cause is pack voltage that has dropped too low for the charger to turn on, followed by a bad charger plug, receptacle or charger. When it won’t move, the usual suspects are the run/tow switch, a dead or weak pack, loose or corroded cables, or a bad solenoid. You can safely check the simple things yourself, but anything past that is a job for a tech, and Mad Dog can come to you Monday through Friday.
Is it a charging problem or a driving problem?
Start by figuring out which one you have:
- The charger won’t turn on or shuts off right away: charging problem
- The charger runs, but the cart still has no power: battery or wiring problem
- The cart has a charge but won’t go, or clicks and doesn’t move: drive-system problem (switches, solenoid, controller, motor)
Golfcarttips.com’s charging guide suggests checking in a set order, from the most common cause to the least common, which saves time and money.
What are the 7 most common causes?
1. Pack voltage is too low for the charger
Most automatic chargers won’t turn on if pack voltage drops below a minimum. Golfcarttips.com says that’s typically 25 to 30 volts on a 48V system. A cart that sat for weeks unplugged can drop below that, and the charger acts like it’s broken. A tech can safely bring the pack back up to where the charger recognizes it, if the batteries are still healthy.
2. The onboard computer (OBC) cut off charging
Some carts, including certain Club Car models, have an onboard computer that controls charging. Golfcarttips.com notes that an OBC that shuts off the charge circuit is a common cause of “won’t charge” on those carts.
3. Bad charger plug or receptacle
Burnt, loose or corroded pins in the charger plug or the cart’s receptacle can stop charging completely. Look for discoloration or melted plastic. If you see it, don’t keep using it.
4. The charger itself has failed
Chargers wear out too. If the pack voltage is fine and the plug looks good, the charger may be the problem. Remember that lithium packs need a lithium-compatible charger.
5. Loose or corroded battery cables
Corrosion is constant in Florida’s humid, salty air. A single loose or corroded cable can stop the cart from charging or moving, or cause it to cut out. This is one of the most common fixes on a service visit.
6. Run/tow switch or key and direction switch
Many carts have a run/tow switch under the seat. If it’s set to “tow,” the cart won’t drive. A worn key switch or forward/reverse switch can cause the same thing.
7. Solenoid, controller or motor problems
If you hear a click when you press the pedal but the cart doesn’t move, the solenoid is a common suspect, though wiring and the controller can also be to blame. These need proper testing to diagnose.
What can I safely check myself?
- Make sure the run/tow switch is set to run
- Make sure the charger is plugged into a working outlet
- Look at the charger plug and cart receptacle for damage
- Check battery cables for obvious looseness or corrosion (don’t touch terminals with metal tools across them)
- Check water levels on flooded lead-acid batteries
Stop there if you’re not comfortable working with electricity. A 36V or 48V battery pack can deliver a lot of current, so leave voltage testing and repairs to someone with the right tools.
When should I call a mobile tech?
Call if:
- The basic checks didn’t fix it
- You see burnt plugs, melted wiring or swollen batteries
- The cart clicks but won’t move
- It cuts out while you’re driving
- The batteries are old and you’re not sure they’re worth saving
Most of our service is mobile, so we come to your driveway and diagnose the cart where it sits, with no need to tow a cart that won’t move. Bigger jobs go to our Green Cove Springs service center. See how mobile golf cart repair works, or visit our mobile golf cart repair and repair and service pages.
Is it time for new batteries?
If the batteries are the problem and they’re near the end of their life, it may be time for a new pack or a lithium battery conversion. Our guide on how long golf cart batteries last covers the warning signs.
Frequently Asked Questions
Why won’t my golf cart charger turn on?
The most common reason is that pack voltage dropped below the charger’s turn-on threshold, often after the cart sat unplugged. A bad plug, receptacle or charger can also be the cause.
Why does my golf cart click but not move?
A clicking solenoid with no movement often points to the solenoid, wiring or the controller. A tech should test it to find the cause.
Can a bad battery stop my cart from charging?
Yes. One weak or failed battery can drag down the whole pack and keep the charger from working properly.
Can you fix my golf cart at home?
Often, yes. Most of our service is mobile, with our Green Cove Springs shop as backup for bigger jobs. Appointments are Monday through Friday.
Get Your Cart Running Again
Don’t wrestle a dead cart onto a trailer. Call Mad Dog Premium Golf Carts to book a mobile diagnostic visit Monday through Friday. Green Cove Springs service center: 831 Leonard C Taylor Pkwy, Green Cove Springs, FL 32043, 904-761-5124. St. Augustine showroom: 1745 County Road 210, St. Augustine, FL 32092, 904-290-2958.