[header] How to change battery cables [title] Put on safety glasses and gloves. [step] It's important to wear the appropriate protective equipment any time you work on a car or truck. Car batteries contain a mixture of sulphuric acid and water that could cause serious harm if it gets into your eyes. 
[substeps] Batteries can rupture if hooked up incorrectly, which could result in the water/acid mixture from the battery getting into your eyes. Wearing latex gloves can make it much easier to clean up after you're done working on the car, but may not be necessary for this job.