Can You Use Vaseline On Battery Terminals. Once the terminals are dry dab a bit of petroleum jelly onto them. This will lubricate them help prevent further corrosion and help strengthen the connection.
When you notice corrosion on both battery terminals or even one of them you usually hear many methods to remove corrosion and also techniques to prevent corrosion too. When you tighten the cable screw it will displace the Vaseline and make good electrical contact. Vaseline can work as a substitute for dielectric grease the big differences are that it can degrade rubber and plastics over time and its combustible but Ive used it in the past on car bulbs wiring and battery terminals and it hasnt been a problem yet.
The best way is to remove the battery cable from the terminal then coat everything and re-attach the battery cable.
An inexpensive way to keep corrosion from building up on your cars battery terminals is to apply a tablespoon of petroleum jelly to both the positive and negative postsUse a wrench to remove the battery cables from the posts and rub the petroleum jelly onto each terminal. When you tighten the cable screw it will displace the Vaseline and make good electrical contact. I always end up having to use some baking soda water to clean terminalsconnectors when I install new batteries and Vaseline has always worked wonders for me. It can be used as a replacement for emergency situations.
