LEAD ACID BATTERIES - My Charger is Stuck Flashing Red and Green
Dealing with a charger that won't charge can be perplexing, but understanding the cause often simplifies the solution. Through troubleshooting with our customers, we have found a relatively common issue that has a fairly simple solution.
Commonly Occurs After
- Your cart was driven until it wouldn't drive anymore
- Your cart has not been charged in a while
- An accessory on your cart was left on
The Problem
The primary issue arises when the batteries in your golf cart drop below the minimum safe charging voltage – 18V for 36V carts and 24V for 48V carts.
This scenario is common, especially in carts that haven't been charged for a prolonged period or have been completely drained. In such cases, a standard golf cart charger is unable to initiate the charging process due to the low voltage.
How to Confirm
- Confirm ‘RUN’ Mode: Confirm that the TOW/RUN switch (usually under the seat) is in ‘RUN’ mode
-
Drive: With the golf cart on, step on the pedal/accelerator
• If the cart does not move, the batteries are below the usable voltage
How To Fix
- Disconnect the Charger: Disconnect the charger from your cart.
- Connect a Trickle Charger: Connect the positive and negative leads of an automotive trickle charger to battery 1 in your golf cart. (The wires between each battery do not need to be disconnected)
- Charge: Turn on the trickle charger and let it charge for approximately 30 minutes.
- Repeat for Each Battery: Repeat steps 2 and 3 for each of your batteries.
-
Check Voltage: Use a multimeter to check the voltage over the entire battery pack
• If your pack voltage is testing above 18 volts for 36-volt carts or 24 volts for 48-volt carts, you may resume charging with your golf cart charger.
• If your pack voltage remains under the minimum, repeat charging each battery individually with the trickle charger.