Acid leakage is a common failure of aging or damaged golf cart batteries, which not only reduces battery performance and service life but also corrodes the golf cart’s metal frame, circuit components, and tire parts, causing secondary equipment damage. Golf cart lead-acid batteries store diluted sulfuric acid electrolyte inside sealed casings, and acid leakage mostly occurs at the battery cover sealing gap, terminal joints, or cracked casing positions. Mild acid leakage will form white crystalline corrosion deposits on the battery surface, while severe leakage will cause visible liquid acid outflow, resulting in battery capacity decline, unstable power supply, and even circuit short circuits during driving. Timely and standardized repair of acid leakage is crucial to restore battery performance and ensure the safe operation of golf carts.

Before repairing acid leakage, thorough safety preparation and fault inspection are essential. First, cut off the golf cart power supply, disconnect the battery positive and negative cables, and remove the leaking battery from the cart for independent inspection. Prepare neutralizing materials such as baking soda and clean water, as baking soda can neutralize sulfuric acid effectively to avoid continuous corrosion. Wear acid-resistant gloves, protective goggles, and masks to prevent the corrosive electrolyte from contacting skin and eyes. Carefully check the battery casing for cracks, sealing ring aging, terminal looseness, and liquid hole cover damage to confirm the exact leakage point. Most acid leakage is caused by aging sealing parts, overcharging leading to liquid expansion overflow, or casing damage caused by vibration and bumping during golf cart driving.

The formal repair process is divided into neutralization cleaning, leakage point repair, and battery performance recovery. First, mix baking soda and clean water into a neutral solution, spray or wipe all leaked acid areas and surrounding corrosion parts until the bubbling reaction completely stops, then rinse the battery surface with clean water and dry it thoroughly with a clean cloth. For leakage caused by aging or loose sealing rings and liquid hole covers, replace the damaged sealing accessories with new dedicated parts, and tighten all joint gaps evenly to ensure tight sealing. For tiny casing cracks, use battery-specific waterproof and acid-resistant glue for sealing repair after cleaning and drying the crack surface; large-area casing cracks cannot be repaired and require direct battery replacement.

After repairing the leakage point, battery liquid level detection and charging calibration are required. Check the internal electrolyte liquid level, replenish distilled water to the standard scale if the liquid level is too low, and avoid overfilling to prevent repeated overflow during charging. Use a professional low-current charger to charge the battery slowly, observe whether there is secondary leakage during the charging process, and test battery voltage and capacity after full charging. In daily use, avoid overcharging, over-discharging, and violent vibration of the golf cart, regularly clean battery surface dust and corrosive deposits, and check sealing conditions monthly to prevent recurring acid leakage failures.