How to Restore a Golf Cart Battery

By Steve Smith

A dead or dying golf cart battery will not get you very far. If your golf cart battery is dying, there is a way to restore it. You can take a faltering battery and by applying different types of charges, improve its performance and bring it back to life. You will need a battery charging station that allows you to step up the voltage of the charge.


Difficulty: Moderate
Step 1
Apply a top charge to the battery. This is a charge that is placed on the battery after it has already been fully charged. First, charge the battery at its recommended voltage (usually 2.3 volts per cell). Let the battery rest for one to two full days. Then charge the battery again at the same charge level.
Step 2
Repeat this process several times. A battery with a high degree of sulfate buildup around the cells may require three or four top charges to reverse the effects of the sulfation (sulfur build up on the battery cells).
Step 3
Apply what is called an equalizing charge. This is a stepped-up charge designed to reduce the sulfur build-up. Set your charge to 100 mV above the suggested charging voltage, or usually between 2.45 to 2.50 volts. Then apply a charge to the battery for one or two hours. Carefully watch the battery for signs of heat and possible damage. If there are signs of venting on the battery, discontinue the charge immediately.

Tips & Warnings

Conduct the equalizing charge in a vented room with a moderate temperature.
Applying an equalizing charge can adversely affect a battery. This should only be done on dead batteries and precautions should be taken. Wear protective glasses and gloves when handling the battery during and after the charge.

About The Author

Steve Smith has published hundreds of articles on a wide range of topics, including cars, travel, lifestyle, business, golf, weddings and careers. His articles, features and news stories have appeared in newspapers, consumer magazines and on various websites, including and Smith holds a Bachelor of Arts in English and journalism from University of New Hampshire Durham.

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