Battery Terminal Corrosion: What to Check

Corrosion can interrupt electrical contact, but a leaking, swollen or hot battery needs professional handling.

Check the condition safely

Switch the vehicle off and follow owner-manual precautions. Avoid sparks and metal-tool bridging across terminals.

Find the cause

Repeated corrosion can be linked to venting, leaks or charging problems. Cleaning alone does not diagnose the system.

Put the answer to work

Start with the actual vehicle label or installed component. Then use our vehicle directory and comparison tools to narrow the research. Any missing condition should be checked with the manufacturer or a qualified installer.

Official and manufacturer references

• https://www.interstatebatteries.com/en-lx/agm-batteries