Delta Q QE Ezgo Battery Charger

Flashing Lights on Ezgo Charger – Delta Q QE

Flashing Lights on Ezgo Charger

We frequently get calls about the flashing LED indicator lights on the OEM Ezgo golf cart battery charger by Delta Q Technologies. We will go into some specifics here to cover what each light color represents and any combination of colors flashing together. The LED display is a great visual representation for charger status at a glance. The Delta Q QE EZGO golf cart battery charger flashing LED charge indicator lights communicate several different degrees of  charger status during the charge cycle.


1.) A Short Green Flash = The golf cart charge status is less than 80%. 2.) A Long Green Flash = The golf cart charge status  is more than 80%. 3.) Solid Green = The golf cart charge status is 100%. 4.) Red Flash = Fault Code.

Fault Code Information

LED Fault Codes 1.) Red Flash – Light comes on briefly but nothing after that. Check for valid AC power going to the golf cart battery charger. 2.) One Red Flash = Charge Enabled Fault. Check for poor contact in the DC side connector. Check the plug position in the cart side receptacle to ensure good contact. Might also be  a battery temperature issue or fault. Battery Temperature could be greater than 122 degrees Fahrenheit or 50 degrees Celsius. 3.) Two Red Flashes = Battery Voltage Fault. This results from too much voltage or not enough. If the golf cart’s battery bank is less than 36.0 volts or more than 67.2 volts you may get this fault. It is usually because the battery bank voltage is too low and the battery charger does not sense enough voltage to kick on and start to apply voltage and amperage.

See my article – How to get your golf cart battery charger to charge dead batteries.

4.) Three Red Flashes = Battery Charger Timeout. This means the charge time was exceeded. This could be any combination of things: a. The Battery bank is severely depleted over 50% D.O.D. (Depth of Discharge) b. The batteries are old (sulfation/build-up on lead plates does not allow amperage and                                     voltage to pass thru freely causing excessive resistance, generating heat.  In this case you might                   need to replace batteries. c. Charger output current severely reduced due to excessive length of electric extension cord used                   to reach AC power source or high ambient temperatures. 5.) Four Red Flashes = Battery Charger Timeout. This means the charge time exceeded the safe parameters and operation of battery charger set by the golf cart battery charger manufacturer. It indicates a problem with the battery bank voltage not attaining the required nominal voltage level required to shut the charger off within the maximum time allowed. 6.) Six Red Flashes = Charger Fault: Detects an internal fault. Try to disconnect AC and DC connectors from cart and wall socket. Wait a few minutes (10 minutes) to be sure. Reconnect Ac power first then DC connector to golf cart. If fault 6 is again displayed after unplugging and then plugging in the DC power cord, the charger will need to be replaced or should be brought into a qualified service center. Need a OEM replacement for your old charger? If you find this article helpful please reply to this article post below.

Help is at hand

Should you have any questions about your golf cart battery charger or determine that you need to purchase a new one, feel free to contact us and speak with one of Battery Pete’s team members. Pete’s team is always standing by to help you. 772-444-2280