Reasons for Battery Leakage?
2 Answers
Reasons for car battery leakage are as follows: 1. Cracks on the exterior: Battery leakage is often caused by aging or even cracking of the seal between the upper cover and the base. In this case, first inspect the battery's exterior for any cracks. If found, use plastic welding to repair them. After repair, also check the electrolyte concentration to ensure the battery functions properly. 2. Component leakage: It could also be due to leakage at the safety valve or wiring connections. First, remove the battery cover and check for any leakage marks on the safety valve. If present, the corresponding parts should be repaired or replaced.
Once my car battery leaked, and I figured out the reasons. Battery aging is the most common cause - after years of use, the sealing ring fails, allowing electrolyte to seep out. Overcharging is another issue; when the charging system malfunctions (like a faulty voltage regulator), excessive voltage during charging increases internal pressure and causes fluid overflow. Hot weather exacerbates thermal expansion/contraction problems, while rough road vibrations can crack the casing. During inspection, I noticed white crystalline deposits (leakage residue) that later corroded the battery tray. I recommend owners regularly check batteries for cracks/odd smells, immediately clean and replace problematic units to prevent severe damage like electrical shorts. Avoid prolonged high-load operation to extend battery lifespan.